39 results on '"Qiuyi Ji"'
Search Results
2. Z‐Scheme Modulated Charge Transfer on InVO 4 @ZnIn 2 S 4 for Durable Overall Water Splitting
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Gancheng Zuo, Sisi Ma, Zhizhen Yin, Wuyang Chen, Yuting Wang, Qiuyi Ji, Qiming Xian, Shaogui Yang, and Huan He
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Biomaterials ,General Materials Science ,General Chemistry ,Biotechnology - Published
- 2023
3. Occurrence and risk of iodinated X-ray contrast media in source and tap water from Jiangsu province, China
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Xinying Cheng, Yubao Xia, Qiuyi Ji, Qingsong Ji, Huiming Li, Jiehong Guo, Shiyin Li, Shaogui Yang, Limin Zhang, and Huan He
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Adult ,China ,Environmental Engineering ,Adolescent ,Health, Toxicology and Mutagenesis ,X-Rays ,Iohexol ,Contrast Media ,Water ,Pollution ,Environmental Chemistry ,Humans ,Child ,Waste Management and Disposal - Abstract
Microcontaminants in the water environment have received increasing attention due to their adverse effects on human health and wildlife. However, iodinated X-ray contrast media (ICM), a type of microcontaminants, have not yet been systematically documented in source and tap water. This study investigated ICM in water samples via a sampling activity from 25 drinking water sources and their corresponding 30 household taps in south-central Jiangsu Province, China. The total concentrations of ICM ranged from 14.2 to 138.5 ng/L in source water and 3.7 to 101.3 ng/L in tap water, respectively. The calculated average water treatment efficiency to remove ICM is 38.3% with large variation under different processes (ranging from 7.3% to 75.7%), which implied that ICM could not be effectively removed using current treatment technologies. By integrating other ICM into the predominant compound iohexol with relative potency factors, the health risks of total ICM through water consumption were assessed using the Monte Carlo simulation. The results concluded that the risk of ingesting ICM through tap water was not a major health concern for adults, teens, or children in the study area. Nevertheless, due to the lack of long-term toxicity data relevant for humans for ICM, this risk may be underestimated, which requires further research.
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- 2022
4. Acid-tailored self-assembled perylene diimide supramolecular for visible-light-driven activation of peroxymonosulfate towards efficient degradation of iohexol
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Qiuyi Ji, Kexun Du, Jiandong Zhu, Xiaoqian Ye, Hongjian Li, Xinying Cheng, Yazi Liu, Zhe Xu, Gancheng Zuo, Shiyin Li, Shaogui Yang, Limin Zhang, and Huan He
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General Chemical Engineering ,Environmental Chemistry ,General Chemistry ,Industrial and Manufacturing Engineering - Published
- 2023
5. Fabrication of g-C3N4/Y-TiO2 Z-scheme heterojunction photocatalysts for enhanced photocatalytic activity
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Qiuyi Ji, Chenmin Xu, KwangChol Ri, MyongNam Pak, Shaogui Yang, SongSik Pak, Huan He, Dunyu Sun, and Chengdu Qi
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Photoluminescence ,Scanning electron microscope ,Heterojunction ,General Chemistry ,Photochemistry ,Catalysis ,Dielectric spectroscopy ,chemistry.chemical_compound ,X-ray photoelectron spectroscopy ,chemistry ,Materials Chemistry ,Photocatalysis ,Rhodamine B ,Fourier transform infrared spectroscopy - Abstract
The g-C3N4/Y-TiO2 Z-scheme heterojunction photocatalysts were successfully synthesized. Powder X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy were used for characterization. The photocatalytic activity of the as-prepared samples was investigated via the degradation efficiency of rhodamine B (RhB) under visible-light irradiation, and 20 mg L−1 RhB was completely degraded in 90 min. The results showed that the photocatalytic degradation of RhB conformed to pseudo-first-order kinetic fitting, and the kinetic constants of g-C3N4/Y-TiO2 were 4.27 times higher than those of g-C3N4/TiO2 and 14.18 times higher than those of Y-TiO2, respectively. The enhanced photocatalytic activity of g-C3N4/Y-TiO2 was due to the formation of a Z-scheme heterojunction by Y at the g-C3N4/TiO2 interface. Formation of the Z-scheme heterojunction resulted in the suppression of photo-generated electron–hole pair recombination and the increase of their lifetimes, which was demonstrated by the transient photocurrent response, electrochemical impedance spectroscopy, and the time-resolved photoluminescence spectra. The superoxide radical and photo-generated holes played a dominant role in the photocatalytic degradation process of RhB by g-C3N4/Y-TiO2.
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- 2021
6. Covalency dominating Z-scheme perylene-dicarboximide@ZnIn2S4 organic-inorganic hybrids for overall water splitting
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Gancheng Zuo, Wuyang Chen, Zhizhen Yin, Sisi Ma, Yuting Wang, Qiuyi Ji, Qiming Xian, Shaogui Yang, and Huan He
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General Chemical Engineering ,Environmental Chemistry ,General Chemistry ,Industrial and Manufacturing Engineering - Published
- 2023
7. The impact of ABCB1 and CES1 polymorphisms on dabigatran pharmacokinetics and pharmacodynamics in patients with atrial fibrillation
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Zi Wang, Qiuyi Ji, Qing Xu, Chunyu Zhang, Qianzhou Lv, and Xiaoye Li
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medicine.medical_specialty ,ATP Binding Cassette Transporter, Subfamily B ,Hemorrhage ,Single-nucleotide polymorphism ,030226 pharmacology & pharmacy ,Gastroenterology ,Antithrombins ,Dabigatran ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Atrial Fibrillation ,Humans ,Medicine ,Pharmacology (medical) ,Prospective Studies ,030212 general & internal medicine ,Pharmacology ,Polymorphism, Genetic ,medicine.diagnostic_test ,business.industry ,Anticoagulants ,Odds ratio ,Minor allele frequency ,Pharmacodynamics ,Trough level ,business ,Carboxylic Ester Hydrolases ,Pharmacogenetics ,medicine.drug ,Partial thromboplastin time - Abstract
AIMS Our study aimed to determine the impact of genetic polymorphisms of ABCB1 and CES1 on the pharmacokinetics (PK) and pharmacodynamics (PD) of dabigatran in patients with nonvalvular atrial fibrillation (NVAF). METHODS We conducted a prospective study and enrolled NVAF patients treated with dabigatran. Blood samples were obtained from each patient and used for genotyping and determination of plasma dabigatran concentration (PDC) and coagulation parameters including activated partial thromboplastin time (APTT) and thrombin time. Patients' demographics and clinical outcomes from scheduled follow-up visits were all recorded. Statistical analysis was performed to identify the impact of genetic polymorphisms on the PK/PD and bleeding risk of dabigatran. RESULTS A total of 198 patients were included in analysis. For the ABCB1 polymorphisms rs4148738 and rs1045642, no significant association was found with dabigatran PK/PD. For the CES1 polymorphism rs8192935, the minor allele(C) was associated with increased trough PDCs (ANOVA: P < .001; CC vs. TT genotype, P < .001; CT vs. TT genotype, P = .014) and with APTT values at trough level (P = .015). For the CES1 polymorphism rs2244613, the minor allele(A) carriers had higher levels of trough PDC than noncarriers (ANOVA: P < .001; AA vs. CC genotype, P < .001; CA vs. CC genotype, P = .004) and increased risk for minor bleeding (P = .034; odds ratio = 2.71, 95% confidence interval 1.05-7.00). CONCLUSION Our study indicated that the minor allele(C) on the CES1 SNP rs8192935 was associated with PDCs and APTT values at trough level. The minor allele(A) on the CES1 SNP rs2244613 was associated with increased trough PDCs and higher risk for minor bleeding in NVAF patients treated with dabigatran.
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- 2020
8. UV/H2O2 oxidation of tri(2-chloroethyl) phosphate: Intermediate products, degradation pathway and toxicity evaluation
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Qiuyi Ji, Yong Wang, Huan He, Cheng Sun, Zhanqi Gao, Shaogui Yang, Shiyin Li, Limin Zhang, and Xiaohan Wang
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Addition reaction ,Environmental Engineering ,chemistry.chemical_element ,02 engineering and technology ,General Medicine ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,Phosphate ,01 natural sciences ,Redox ,Acute toxicity ,chemistry.chemical_compound ,Reaction rate constant ,chemistry ,TCEP ,Chlorine ,Environmental Chemistry ,0210 nano-technology ,Chronic toxicity ,0105 earth and related environmental sciences ,General Environmental Science ,Nuclear chemistry - Abstract
Tri(2-chloroethyl) phosphate (TCEP) with the initial concentration of 5 mg/L was degraded by UV/H2O2 oxidation process. The removal rate of TCEP in the UV/H2O2 system was 89.1% with the production of Cl− and PO43− of 0.23 and 0.64 mg/L. The removal rate of total organic carbon of the reaction was 48.8% and the pH reached 3.3 after the reaction. The oxidative degradation process of TCEP in the UV/H2O2 system obeyed the first order kinetic reaction with the apparent rate constant of 0.0025 min−1 (R2=0.9788). The intermediate products were isolated and identified by gas chromatography-mass spectrometer. The addition reaction of HO• and H2O and the oxidation reaction with H2O2 were found during the degradation pathway of 5 mg/L TCEP in the UV/H2O2 system. For the first time, environment risk was estimated via the “ecological structure activity relationships” program and acute and chronic toxicity changes of intermediate products were pointed out. The luminescence inhibition rate of photobacterium was used to evaluate the acute toxicity of intermediate products. The results showed that the toxicity of the intermediate products increased with the increase of reaction time, which may be due to the production of chlorine compounds. Some measures should be introduced to the UV/H2O2 system to remove the highly toxic Cl-containing compounds, such as a nanofiltration or reverse osmosis unit.
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- 2020
9. Heterogeneous Fenton-like removal of tri(2-chloroisopropyl) phosphate by ilmenite (FeTiO
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Dunyu, Sun, Xiaohan, Wang, Qiuyi, Ji, Shaogui, Yang, Huan, He, Shiyin, Li, Chenmin, Xu, Chengdu, Qi, Haiou, Song, and Yazi, Liu
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Titanium ,Ultraviolet Rays ,Iron ,Humans ,Oxidation-Reduction ,Organophosphates ,Water Pollutants, Chemical ,Flame Retardants ,Phosphates - Abstract
Tri(2-chloroisopropyl) phosphate (TCPP), a common organophosphate flame retardant, was frequently detected in the environment and posed threats to human health. In this work, the main component of ilmenite FeTiO
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- 2022
10. Insights into Adsorption Mechanisms of Anchornitro Polycyclic Aromatic Hydrocarbons on Common Microplastic Particles: Experimental Studies and Modeling
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Xiangcheng Kong, Jinghua Zhang, Qiuyi Ji, Chao Li, Xianxian Chen, Xiaoyu Cao, Fengxiao Zhu, Shaogui Yang, Shiyin Li, and Huan He
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- 2022
11. Identifying the Role of Oxygen Vacancy on Cobalt-Based Perovskites Towards Peroxymonosulfate Activation for Efficient Iohexol Degradation
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Zhe Xu, Yijie Wu, Xin Wang, Qiuyi Ji, Taozhu Li, Huan He, Haiou Song, Shaogui Yang, Shiyin Li, Shicheng Yan, Limin Zhang, and Zhigang Zou
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History ,Polymers and Plastics ,Process Chemistry and Technology ,Business and International Management ,Catalysis ,Industrial and Manufacturing Engineering ,General Environmental Science - Published
- 2022
12. Activation of Peroxymonosulfate (Pms) by Rgo Supported Co3o4 Catalyst for Iohexol Degradation
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Weiming Xiang, Shuohua Zhou, Qiang Zhong, Shaogui Yang, Gancheng Zuo, Zhe Xu, Qiuyi Ji, Jijie Kong, Chenmin Xu, Bing Yang, Dunyu Sun, Yinhao Dai, Yazi Liu, Huan He, and Shiyin Li
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History ,Polymers and Plastics ,Business and International Management ,Industrial and Manufacturing Engineering - Published
- 2022
13. Insights into Adsorption Mechanisms of Nitro Polycyclic Aromatic Hydrocarbons on Common Microplastic Particles: Experimental Studies and Modeling
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Xiangcheng Kong, Jinghua Zhang, Qiuyi Ji, Chao Li, Xianxian Chen, Xiaoyu Cao, Fengxiao Zhu, Shaogui Yang, Shiyin Li, and Huan He
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History ,Environmental Engineering ,Polymers and Plastics ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Environmental Chemistry ,General Medicine ,General Chemistry ,Business and International Management ,Pollution ,Industrial and Manufacturing Engineering - Published
- 2022
14. Heterogeneous Fenton-like removal of tri(2-chloroisopropyl) phosphate by ilmenite (FeTiO3): Kinetic, degradation mechanism and toxic assessment
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Dunyu Sun, Xiaohan Wang, Qiuyi Ji, Shaogui Yang, Huan He, Shiyin Li, Chenmin Xu, Chengdu Qi, Haiou Song, and Yazi Liu
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Environmental Engineering ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Environmental Chemistry ,General Medicine ,General Chemistry ,Pollution - Published
- 2022
15. Impact of Renal Function on Effectiveness and Safety Associated With Low Dose Dabigatran in Non-valve Atrial Fibrillation Patients After Catheter Ablation
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Qianzhou Lv, Chengchun Zuo, Zi Wang, Xiaoye Li, and Qiuyi Ji
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medicine.medical_specialty ,Gastrointestinal bleeding ,evaluated glomerular filtration rate ,medicine.medical_treatment ,Renal function ,Catheter ablation ,Cardiovascular Medicine ,Gastroenterology ,Dabigatran ,Internal medicine ,effectiveness and safety outcomes ,medicine ,Diseases of the circulatory (Cardiovascular) system ,dabigatran ,Original Research ,business.industry ,Atrial fibrillation ,Retrospective cohort study ,non-valve atrial fibrillation ,medicine.disease ,Thrombosis ,composite endpoint ,RC666-701 ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug ,Kidney disease - Abstract
Aim: The purpose of this study is to compare the effectiveness and safety of 110 mg dabigatran in non-valve atrial fibrillation (NVAF) patients with different eGFRs.Methods: We conducted a single-center retrospective cohort study to investigate the effectiveness and safety of 110 mg dabigatran for NVAF patients between January 2017 and December 2018 based on the eGFR category.Results: A total of 560 NVAF patients who treated with 110 mg dabigatran were included for analysis. In 12 months, the Kaplan-Meier survival curves indicated that the lower eGFR subgroups were more likely to experience thrombosis, bleeding, and cumulative events earlier (P = 0.021 for thrombosis; P = 0.026 for bleeding; P = 0.001 for cumulative events). Gastrointestinal bleeding occurred more frequently in the moderate group than in other groups (6.94% in the moderate group vs. 1.54% in the mild group vs. 1.22% in the normal group, P = 0.028). By multivariate analysis, chronic kidney disease (P = 0.043; OR = 4.273, 95% CI 1.043–17.543) and diabetes mellitus (P = 0.023; OR = 2.194, 95% CI 1.114–4.323) were independent predictors of the composite endpoints. A positive linear relationship was observed between eGFR levels and occurrence rate of thrombosis and bleeding under anticoagulation patients with 110 mg dabigatran (R2 = 0.432 and R2 = 0.784, respectively).Conclusions: Impaired renal function was associated with decreased safety and increased thrombosis risks in NVAF patients taking low dose dabigatran.
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- 2021
16. Defect-engineered FeSe2−x@C with porous architecture for enhanced peroxymonosulfate-based advanced oxidation processes
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Qiang Zhong, Chenmin Xu, Yazi Liu, Qiuyi Ji, Zhe Xu, Dunyu Sun, Shuohua Zhou, Bing Yang, Yinhao Dai, Chengdu Qi, Shaogui Yang, Huan He, Shiyin Li, and Cheng Sun
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Process Chemistry and Technology ,Catalysis ,General Environmental Science - Published
- 2022
17. Determination of ten iodinated X-ray contrast media by solid-phase extraction and ultra-high performance liquid chromatography coupled with high-resolution orbitrap mass spectrometry
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Xinying Cheng, Qiuyi Ji, Xuebing Wang, Jiehong Guo, Xianxian Chen, Huan He, Nanyang Yu, Shiyin Li, Shaogui Yang, and Limin Zhang
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Spectroscopy ,Analytical Chemistry - Published
- 2022
18. Visible-light activation of persulfate ions by Z-scheme perylene diimide/MIL-101(Cr) heterojunction photocatalyst towards efficient degradation of iohexol
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Qiuyi Ji, Xinying Cheng, Xiangcheng Kong, Dunyu Sun, Yijie Wu, Zhe Xu, Yazi Liu, Xiaoguang Duan, Huan He, Shiyin Li, Limin Zhang, and Shaogui Yang
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General Chemical Engineering ,Environmental Chemistry ,General Chemistry ,Industrial and Manufacturing Engineering - Published
- 2022
19. Ultrasound-assisted dispersive liquid-liquid microextraction followed by gas chromatography–mass spectrometry for determination of parabens in human breast tumor and peripheral adipose tissue
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Zi Wang, Hong Wang, Qianzhou Lv, Luxia Zheng, Jian Liang, Qiaoli Chen, Xiong Shen, and Qiuyi Ji
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Analyte ,Central composite design ,Liquid Phase Microextraction ,Calibration curve ,Clinical Biochemistry ,Parabens ,Breast Neoplasms ,02 engineering and technology ,Mass spectrometry ,01 natural sciences ,Biochemistry ,Gas Chromatography-Mass Spectrometry ,Analytical Chemistry ,chemistry.chemical_compound ,Limit of Detection ,Humans ,Detection limit ,Chromatography ,Chemistry ,010401 analytical chemistry ,Extraction (chemistry) ,Reproducibility of Results ,Cell Biology ,General Medicine ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Paraben ,Adipose Tissue ,Linear Models ,Gas chromatography–mass spectrometry ,0210 nano-technology - Abstract
An efficient method for the determination of eight parabens in human breast tumor ( n = 102) and peripheral adipose tissue samples ( n = 87) was successfully developed. After a precipitation procedure (acetonitrile-water-15% (w/v) zinc sulfate solution) was applied to finely-chopped tissue samples, ultrasound-assisted dispersive liquid-liquid microextraction was conducted on the sample solution. The extracted parabens were determined by gas chromatography–mass spectrometry. Significant factors influencing extraction efficiency were screened and optimized using Plackett-Burman design and central composite design. The optimized conditions were obtained at 93 μL 1‑decanol, 500 μL methanol, and ultrasound irradiation power 156 W for 44 s. Under the optimum condition, the proposed method showed enrichment factors between 44.9 and 60.5. The detection limits for parabens were between 0.5 and 1.0 ng g −1 . Calibration curves showed good linearity with coefficients of determination higher than 0.993. Relative standard deviations were lower than 11.8%. No significant matrix effects were observed as recoveries from spiked tissue samples ranged between 79.6% and 113.6%. The sample pretreatment procedure and analytical characteristics showed comparable or superior to those of the previously reported methods. Finally, the procedure was successfully employed in real samples and results indicated a wide existence of parabens in the tested tissues. At least one paraben was detected in 98.9% tissues and the levels ranged from 0.5 to 5931.1 ng g −1 , depending on the types of analytes and tissues.
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- 2018
20. Review on application of perylene diimide (PDI)-based materials in environment: Pollutant detection and degradation
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Huan He, Shiyin Li, Qiuyi Ji, Chenmin Xu, Chengdu Qi, Guo Liu, Wenwu Zhou, Weiming Xiang, Shaogui Yang, Zhe Xu, and Bing Yang
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Pollution ,Pollutant ,Environmental Engineering ,010504 meteorology & atmospheric sciences ,media_common.quotation_subject ,Nanotechnology ,010501 environmental sciences ,Persulfate ,01 natural sciences ,chemistry.chemical_compound ,chemistry ,Diimide ,Hazardous waste ,Photocatalysis ,Environmental Chemistry ,Environmental science ,Degradation (geology) ,Waste Management and Disposal ,Perylene ,0105 earth and related environmental sciences ,media_common - Abstract
Environment pollution is getting serious and various poisonous contaminants with chemical durability, biotoxicity and bioaccumulation have been widespreadly discovered in municipal wastewaters and surface water. The detection and removal of pollutants show great significance for the protection of human health and other organisms. Due to its distinctive physical and chemical properties, perylene diimide (PDI) has received widespread attention from different research fields, especially in the area of environment. In this review, a comprehensive summary of the development of PDI-based materials in fluorescence detection and advanced oxidation technology for environment was introduced. Firstly, we chiefly presented the recent progress about the synthesis of PDI and PDI-based nanomaterials. Then, their application in fluorescence detection for environment was presented and categorized, principally including the detection of heavy metal ions, harmful anions and organic contaminants in the environment. In addition, the application of PDI and PDI-based materials in different advanced oxidation technologies for environment, such as photocatalysis, photoelectrocatalysis, Fenton and Fenton-like reaction and persulfate activation, was also summarized. At last, the challenges and future prospects of PDI-based materials in environmental applications were discussed. This review focuses on presenting the practical applications of PDI and PDI-based materials as fluorescent probes or catalysts (especially photocatalysts) in the detection of hazardous substances or catalytic elimination of organic contaminants. The contents are aimed at supplying the researchers with a deeper understanding of PDI and PDI-based materials and encouraging their further development in environmental applications.
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- 2020
21. UV/H
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Qiuyi, Ji, Huan, He, Zhanqi, Gao, Xiaohan, Wang, Shaogui, Yang, Cheng, Sun, Shiyin, Li, Yong, Wang, and Limin, Zhang
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Hydrogen Peroxide ,Oxidation-Reduction ,Organophosphates ,Phosphates ,Water Purification - Abstract
Tri(2-chloroethyl) phosphate (TCEP) with the initial concentration of 5 mg/L was degraded by UV/H
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- 2020
22. Enhancing the performance of pollution degradation through secondary self-assembled composite supramolecular heterojunction photocatalyst BiOCl/PDI under visible light irradiation
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Shaogui Yang, Chenmin Xu, Zhe Xu, Xinying Cheng, Qiuyi Ji, Jiapeng Hu, Limin Zhang, Weiming Xiang, Huan He, Chengdu Qi, Wu Yijie, and Shiyin Li
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Environmental Engineering ,Materials science ,Light ,Surface Properties ,Health, Toxicology and Mutagenesis ,0208 environmental biotechnology ,02 engineering and technology ,010501 environmental sciences ,Photochemistry ,Imides ,01 natural sciences ,Catalysis ,law.invention ,chemistry.chemical_compound ,Phenols ,law ,Rhodamine B ,Methyl orange ,Environmental Chemistry ,Phenol ,Electron paramagnetic resonance ,Perylene ,0105 earth and related environmental sciences ,Aqueous solution ,Rhodamines ,Public Health, Environmental and Occupational Health ,Heterojunction ,General Medicine ,General Chemistry ,Pollution ,020801 environmental engineering ,Nanostructures ,chemistry ,Photocatalysis ,Azo Compounds ,Bismuth ,Water Pollutants, Chemical ,Visible spectrum - Abstract
A novel n-n type inorganic/organic heterojunction of flaky-like BiOCl/PDI photocatalyst was constructed by water bath heating method. Meanwhile, a simple method - secondary self-assembly was used to prepare the BiOCl/PDI with a special band structure. The photocatalytic activities were evaluated by degrading aqueous organic pollutants under visible light (λ > 420 nm). The removal rates of 5 mg L−1 phenol (non-ionic type), methyl orange (MO, anionic type), rhodamine B (RhB, cationic type) and 10 mg L−1 RhB by secondary self-assembly BiOCl/PDI (BiOCl/PDI-2) were 8.0%, 3.4%, 27.8% and 78.9% higher than self-assembly BiOCl/PDI (BiOCl/PDI-1) under visible light (λ > 420 nm). The better photocatalytic activity for BiOCl/PDI-2 was attributed to the optimization of energy-band structures, which arose from different exposed surfaces, narrower interplanar spacing and stronger visible light absorption performance. Under acidic condition, BiOCl/PDI-2 showed a good photocatalytic activity, which was not affected by neutral ionic intensity and had good recycling properties. Moreover, the photocatalytic mechanism was explored by free radical capture test and electron paramagnetic resonance (EPR), and contribution of active species was calculated. The main active species of BiOCl/PDI-2 were ·O2−, 1O2 and h+. Our work may provide a route to design efficient inorganic/organic heterojunctions for organic pollutants degradation.
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- 2020
23. Genetic Polymorphisms and Perioperative Bleeding in Off-Pump Coronary Artery Bypass Grafting Surgery
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Zi Wang, Qiuyi Ji, Qing Xu, Li-min Xia, Qianzhou Lv, JinQiang Shen, and Xiaoye Li
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Pulmonary and Respiratory Medicine ,Male ,medicine.medical_specialty ,ATP Binding Cassette Transporter, Subfamily B ,medicine.medical_treatment ,Coronary Artery Bypass, Off-Pump ,030204 cardiovascular system & hematology ,Postoperative Hemorrhage ,Coronary artery disease ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Prospective Studies ,Acute Coronary Syndrome ,Prospective cohort study ,Off-pump coronary artery bypass ,Aged ,Polymorphism, Genetic ,business.industry ,Odds ratio ,Perioperative ,DNA ,Clopidogrel ,medicine.disease ,Cardiac surgery ,Surgery ,medicine.anatomical_structure ,030228 respiratory system ,Female ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug ,Artery - Abstract
Clopidogrel use before coronary artery bypass graft surgery may increase risk for perioperative hemorrhage. The effect of genetic polymorphisms related to clopidogrel responses on bleeding during or after off-pump coronary artery bypass graft surgery is unknown.This prospective study included 206 coronary artery disease patients scheduled for off-pump coronary artery bypass graft surgery. Genotypes were determined using Sequenom MassARRAY system. Severe bleeding was defined by the universal definition of perioperative bleeding in cardiac surgery.Patients carrying the ABCB1 3435 wild-type genotype (CC) had a higher risk of severe perioperative bleeding compared with patients carrying the variant genotype (CT or TT; 33.9% vs 16.5%, P = .009). Low baseline hemoglobin level (odds ratio 0.944; 95% confidence interval, 0.917 to 0.972; P.001), low baseline estimated glomerular filtration rate (odds ratio 0.977; 95% confidence interval, 0.956 to 0.999; P = .041), discontinuing clopidogrel 5 days or less before surgery (odds ratio 2.458; 95% confidence interval, 1.044 to 5.786; P = .039), and the ABCB1 wild-type genotype (CC; odds ratio 2.941; 95% confidence interval, 1.250 to 6.944; P = .014) were independent risk factors for severe perioperative bleeding.Patients carrying the ABCB1 wild-type genotype (CC) had a higher rate of severe perioperative bleeding compared with patients carrying the variant genotype (CT or TT). Discontinuation of clopidogrel 5 days or less before surgery and the ABCB1 wild-type genotype (CC) were independent risk factors for severe perioperative bleeding.
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- 2019
24. Photocatalytic degradation of diesel pollutants in seawater under visible light
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Qiuyi Ji, Hang Yang, Xiaocai Yu, Zhiwei Nie, and Jian Zhang
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Pollutant ,Materials science ,Ecology ,Coprecipitation ,chemistry.chemical_element ,02 engineering and technology ,Zinc ,010501 environmental sciences ,Aquatic Science ,021001 nanoscience & nanotechnology ,01 natural sciences ,Diesel fuel ,chemistry ,Photocatalysis ,Degradation (geology) ,Animal Science and Zoology ,Seawater ,0210 nano-technology ,Ecology, Evolution, Behavior and Systematics ,0105 earth and related environmental sciences ,Nuclear chemistry ,Visible spectrum - Abstract
Photocatalyst composites were prepared by coprecipitation and characterized by XRD, SEM, and UV–Vis DRS methods. A substantially enhanced photocatalyst activity was observed in degradation of diesel pollutants in seawater, compared to zinc oxide without dopant. Photocatalytic degradation of diesel pollutants in seawater and the effects of factors on the composite’s photocatalytic effectiveness were studied under visible light and various conditions. This degradation in seawater was optimized using an orthogonal experimental plan. According to the results, diesel removal was 26.95% without any catalyst (losses only by evaporation) and the greatest effects occurred when the initial diesel concentration was 0.25 g/L, catalyst dose at 0.4 g/L, catalyst-doping ratio at 10%, pH at 9.0, H 2 O 2 at 6.0 mg/L, and illumination time at 2.5 h, in which case the diesel removal rate reached 93.89%. This study elaborated a means for making zinc oxide utilize visible light more efficiently and thus accelerate the practical application of photocatalytic technology in organic pollutant remediation.
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- 2018
25. Lanthanide oxide doped zinc oxide: effective photocatalysts for the degradation of diesel in seawater under visible light irradiation
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Zhiwei Nie, Jinghua Liu, Xiaocai Yu, Qiuyi Ji, Liping Wang, and Meicen Guo
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Lanthanide ,Materials science ,Doping ,Oxide ,chemistry.chemical_element ,02 engineering and technology ,Zinc ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Evaporation (deposition) ,Catalysis ,Nanocrystalline material ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Photocatalysis ,Physical and Theoretical Chemistry ,0210 nano-technology ,Visible spectrum ,Nuclear chemistry - Abstract
Nanocrystalline lanthanide oxide doped ZnO has been prepared by a simple and efficient technique for exhibiting an enhanced visible light photocatalytic activity. The prepared photocatalysts were characterized by SEM, XRD and UV–Vis DRS analysis. XRD data showed that the particles of samples were highly nanosized and crystalline. The sizes of Yb2O3/ZnO, Er2O3/ZnO and Pr6O11/ZnO nanoparticle were 40.97, 40.94 and 51.18 nm and found to be mixed morphology. Six factors such as dosage of photocatalysts, coupling ratio of lanthanide oxide and ZnO, initial concentration of diesel, concentration of H2O2, illumination time of visible light and pH value were changed in order to test the photocatalytic activity and efficiency of reaction. The enhanced photocatalytic activity was due to the presence of f shells in the lanthanide oxide crystal lattice which delays the process of recombination of electron hole pair. According to the results, diesel removal was
- Published
- 2018
26. Understanding spatial effects of tetrahedral and octahedral cobalt cations on peroxymonosulfate activation for efficient pollution degradation
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Shicheng Yan, Shaogui Yang, Zhe Xu, Chenmin Xu, Wu Yijie, Qiuyi Ji, Cheng Sun, Huan He, Zhigang Zou, Shiyin Li, Chengdu Qi, Limin Zhang, and Taozhu Li
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inorganic chemicals ,Kinetics ,chemistry.chemical_element ,02 engineering and technology ,engineering.material ,010402 general chemistry ,Photochemistry ,Electrochemistry ,01 natural sciences ,Catalysis ,chemistry.chemical_compound ,symbols.namesake ,Rhodamine B ,General Environmental Science ,Process Chemistry and Technology ,Spinel ,Fermi level ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,chemistry ,Octahedron ,engineering ,symbols ,0210 nano-technology ,Cobalt - Abstract
Identifying the spatial effects of cobalt cations in cobalt-based heterogeneous catalysts contributes to develop effective peroxymonosulfate (PMS) activators in water treatment. Herein, we investigated typical tetrahedral and octahedral cobalt ions in CoAl2O4 and ZnCo2O4 via an inactive cation substitution strategy towards spinel Co3O4. ZnCo2O4 (0.095 min−1) performs remarkably better than CoAl2O4 (0.007 min−1) for degrading rhodamine B, while non-radical 1O2 is the dominant reactive oxygen species. Then, interface kinetics characterized by systemic electrochemical techniques indicate the feasibility of Co2+/Co3+ transformation and charge transfer resistance at catalyst-electrolyte interface determine intrinsic activity. Octahedral cobalt species exhibit superior intrinsic activities comparing with tetrahedral ones on the removal of several dye and aromatic pollutants. Additionally, flat band potentials of cobalt-based oxides reflecting Fermi level positions is a thermodynamic factor to activate PMS. Our work attempts to further understand spatial occupation-activity relationship of cobalt sites to design efficient PMS activators.
- Published
- 2021
27. Persulfate enhanced visible light photocatalytic degradation of iohexol by surface-loaded perylene diimide/acidified biochar
- Author
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Wu Yijie, Yazi Liu, Xinying Cheng, Chenmin Xu, Dunyu Sun, Shaogui Yang, Zhe Xu, Xiangcheng Kong, Qiuyi Ji, Cheng Sun, Chengdu Qi, Huan He, Limin Zhang, and Shiyin Li
- Subjects
Chemistry ,General Chemical Engineering ,Radical ,Groundwater remediation ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Photochemistry ,Persulfate ,01 natural sciences ,Industrial and Manufacturing Engineering ,0104 chemical sciences ,Sodium persulfate ,chemistry.chemical_compound ,Hydrolysis ,Diimide ,Photocatalysis ,Environmental Chemistry ,0210 nano-technology ,Perylene - Abstract
Persulfate (PS) is extensively employed as an oxidant to develop the sulfate radical-based advanced oxidation processes for removing organic pollutants and various PS activation methods have been explored. Iohexol (IOH), as a typical iodinated X-ray contrast media, poses a threat to human health and ecological environment, which is difficult to be removed by conventional treatment methods. In our work, a photocatalytic coupling persulfate system was constructed for efficient IOH degradation. A novel binary photocatalyst of biochar loaded with perylene diimide (PDI/BC, PB) was successfully prepared via a one-pot water bath heating method, which achieved BC acidification and PDI self-assembly simultaneously. Different mass ratios of BC and PDI lead to variance in average particle size, electronegativity, bandgap width and electron/hole separation efficiency. The optimized efficiency of 10 mg/L IOH on PB-9 (PDI:BC = 1:9, w/w) reached 100% in 2 h with 1.5 mM sodium persulfate under visible light irradiation. Based on the results of trapping experiments and electron paramagnetic resonance, holes and hydroxyl radicals were the dominant active species and the free radical chain reaction and mutual conversion reaction of active species occurred. The amide hydrolysis, amine and C-OH oxidation, hydrogen extraction, deiodination and OH addition were observed during the degradation process. Density functional theory calculation was conducted to confirm the free radical attack sites. The findings of this work demonstrate that metal-free supramolecular loaded photocatalyst has the potential for application in the removal of organic pollutants for water remediation.
- Published
- 2021
28. Accelerated photocatalytic degradation of iohexol over Co3O4/g-C3N4/Bi2O2CO3 of p-n/n-n dual heterojunction under simulated sunlight by persulfate
- Author
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Chenmin Xu, Shiyin Li, Weiming Xiang, Huan He, Yang Guo, Dunyu Sun, Qiuyi Ji, Cheng Sun, Chengdu Qi, Shaogui Yang, Zhe Xu, Yazi Liu, and Wenwu Zhou
- Subjects
chemistry.chemical_classification ,Chemistry ,Superoxide ,Process Chemistry and Technology ,Radical ,02 engineering and technology ,Electron acceptor ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Persulfate ,Photochemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,chemistry.chemical_compound ,Electron transfer ,Photocatalysis ,Degradation (geology) ,Singlet state ,0210 nano-technology ,General Environmental Science - Abstract
A novel Co3O4/g-C3N4/Bi2O2CO3 (BCCN) photocatalyst with p-n/n-n heterojunction was synthesized through a solvent-thermal method. The degradation efficiency of 20 mg/L iohexol reached 94 % in 60 min (kapp =0.0417 min−1) in BCCN/light/PS system, which was 2.8 and 6.5 times higher than systems of BCCN/light (kapp =0.0150 min−1) and BCCN/PS (kapp =0.0064 min−1). The g-C3N4 addition lowered conduction band of the prepared material to produce superoxide radicals, activate persulfate and further prevent the recombination of photoelectrons and holes. Superoxide radicals and singlet oxygens were dominant radicals for iohexol degradation. Besides, persulfate could act as electron acceptor to enhance efficiency of electron transfer. The interaction between sulfate, superoxide and hydroxyl radicals improved singlet oxygens production. Furthermore, theoretical calculation and liquid chromatography mass spectrometry were performed to analyze degradation pathway of iohexol in the system. Ultimately, the BCCN/light/PS system can provide a new method to degrade organic pollutants in aquatic environments.
- Published
- 2021
29. Photocatalytic degradation of diesel pollutants in seawater by using ZrO 2 (Er 3+ )/TiO 2 under visible light
- Author
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Jian Zhang, Qiuyi Ji, Xiao-Lin Shang, Xinyang Qi, Xiaocai Yu, and Liu Yunqing
- Subjects
Pollutant ,Pollution ,Materials science ,Process Chemistry and Technology ,media_common.quotation_subject ,Evaporation ,02 engineering and technology ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,01 natural sciences ,Catalysis ,Diesel fuel ,Chemical engineering ,Environmental chemistry ,Chemical Engineering (miscellaneous) ,Degradation (geology) ,Seawater ,0210 nano-technology ,Waste Management and Disposal ,0105 earth and related environmental sciences ,Visible spectrum ,media_common - Abstract
Photocatalytic degradation of diesel pollutants in seawater and the effects of factors on the effectiveness of composite photocatalysts are studied in this paper by using ZrO 2 (Er 3+ )/TiO 2 under visible light and changing doping ratio of catalysts, pH value, dose of catalysts, illumination time, and initial concentration of diesel. The degradation of diesel pollution in seawater was optimized by orthogonal experiment. According to the results, the degradation rate of diesel is around 30% without any catalysts (only by evaporation for 2.0 h). The best effect exists when the initial concentration of diesel is 0.20 g/L, the dose of catalysts is 0.8 g/L, the doping ratio of catalysts is 0.4, the pH value is 7, and the illumination time is 2.5 h. The degradation rate of diesel can reach 87.74%. ZrO 2 (Er 3+ )/TiO 2 can effectively degrade the diesel pollutants in seawater under visible light.
- Published
- 2017
30. Degradation of tri(2-chloroisopropyl) phosphate by the UV/H
- Author
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Huan, He, Qiuyi, Ji, Zhanqi, Gao, Shaogui, Yang, Cheng, Sun, Shiyin, Li, and Limin, Zhang
- Subjects
Kinetics ,Porphyrins ,Ultraviolet Rays ,Hydrogen Peroxide ,Wastewater ,Phosphates - Abstract
A photodegradation technology based on the combination of ultraviolet radiation with H
- Published
- 2019
31. Visible light absorption by perylene diimide for synergistic persulfate activation towards efficient photodegradation of bisphenol A
- Author
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Qiuyi Ji, Wu Yijie, Limin Zhang, Weiming Xiang, Chenmin Xu, Chengdu Qi, Xinying Cheng, Shaogui Yang, Zhe Xu, Huan He, and Shiyin Li
- Subjects
Quenching (fluorescence) ,Process Chemistry and Technology ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Photochemistry ,Persulfate ,01 natural sciences ,Catalysis ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Diimide ,Water environment ,Photocatalysis ,0210 nano-technology ,Photodegradation ,Perylene ,General Environmental Science ,Visible spectrum - Abstract
A novel PDI/PS/Vis system was constructed and the photocatalytic activity of PDI with various degrees of self-assembly was explored. Perylene diimide (PDI) as photocatalysts possesses excellent charge separation efficiency and the electron injection from the PDI to persulfate (PS) can produce active species more efficiently. With the PDI/PS/Vis system, 5 mg/L bisphenol A (BPA, 50 mL) could be completely removed in 15 min with 0.5 g/L photocatalyst and 1.5 mM PS under visible light (λ>420 nm). Nearly 71.1 % of BPA was mineralized after 1 h degradation. Radical quenching tests and electron paramagnetic resonance (EPR) spectra revealed that h+, ·O2−, ·OH and SO4·- all contributed to organics elimination with radical process. Based on the results of theoretical calculations and toxicity assessment, BPA will eventually be converted into non-toxic ring-opening products. Therefore, the highly efficient PDI/PS/Vis system has great potential for application in water environment remediation.
- Published
- 2021
32. Oxidation degradation of tri(dichloropropyl) phosphate by UV/H2O2 system: Degradation pathways and risk assessment of intermediates
- Author
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Dunyu Sun, Zhanqi Gao, Limin Zhang, Qiuyi Ji, Shiyin Li, Cheng Sun, Huan He, and Shaogui Yang
- Subjects
Aqueous solution ,Process Chemistry and Technology ,Organic phosphorus ,02 engineering and technology ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,Phosphate ,01 natural sciences ,Pollution ,chemistry.chemical_compound ,Reaction rate constant ,chemistry ,Environmental behavior ,Chemical Engineering (miscellaneous) ,Degradation (geology) ,Degradation process ,0210 nano-technology ,Waste Management and Disposal ,Degradation pathway ,0105 earth and related environmental sciences ,Nuclear chemistry - Abstract
In this work, 5 mg/L of tri(dichloropropyl) phosphate (TDCP) was degraded by UV/H2O2 system in aqueous solution. At 900 min, the removal rate of total organic carbon (TOC), pH values, concentrations of Cl− and PO43− reached 31.7 %, 3.5, 0.09 mg/L, and 0.10 mg/L for TDCP, respectively. The degradation process of TDCP obeyed the pseudo-first-order kinetic formula with a reaction rate constant k of 0.0021 min−1. The intermediates of the degradation of TDCP were detected, which contained some dechlorinated and hydroxylated products. The degradation pathway of TDCP in the UV/H2O2 system was proposed based on the intermediates and calculations of density functional theory (DFT). For the first time, the environmental risks of the intermediates of TDCP were estimated via the “ecological structure-activity relationships” (ECOSAR) program, and acute and chronic toxicity changes of intermediate products were pointed out. The measurement of the luminescence inhibition rate suggested that the intermediates of TDCP degraded by UV/H2O2 system were more toxic than TDCP because of the production of Cl-containing compounds. The study of the environmental behavior of TDCP helps to deepen the understanding of organic phosphorus flame retardants, and provides a scientific basis for the comprehensive prevention and control of such substances and the formulation of environmental regulations.
- Published
- 2020
33. MiR-223 levels predicting perioperative bleeding in off-pump coronary artery bypass grafting
- Author
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Qing Xu, Qiuyi Ji, Zhifeng Yao, Zi Wang, Limin Xia, and Qianzhou Lv
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,05 social sciences ,General Medicine ,Odds ratio ,Perioperative ,030204 cardiovascular system & hematology ,Clopidogrel ,Thromboelastography ,Cardiac surgery ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,0502 economics and business ,medicine ,Cardiology ,Original Article ,050211 marketing ,business ,Prospective cohort study ,Ticagrelor ,medicine.drug ,Off-pump coronary artery bypass - Abstract
Background To investigate the predictive value of platelet-related microRNAs (miRNAs) for bleeding during and after off-pump coronary artery bypass grafting (OPCABG) and the influence of dual antiplatelet therapy (DAPT) on miRNAs. Methods This prospective study included 59 patients scheduled for OPCABG. The plasma miR-126 and miR-223 levels were measured and platelet aggregation was determined by thromboelastography during DAPT. The plasma miRNA levels were compared between patients treated with ticagrelor or clopidogrel. Multivariable logistic regression analysis was performed to determine the independent risk factors for bleeding during and after surgery. Active bleeding was defined as a blood loss >1.5 mL/kg/h for 6 consecutive hours within the first 24 hours or in case of reoperation during the first 12 postoperative hours. Severe perioperative bleeding was defined using the universal definition of perioperative bleeding in adult cardiac surgery. Results Higher circulating miR-223 levels [odds ratio (OR) =1.348, 95% confidence interval (CI): 1.001-1.814, P=0.047] and lower body mass index (OR =0.648, 95% CI: 0.428-0.980, P=0.040) were independent predictors for severe perioperative bleeding in OPCABG. Ticagrelor treatment led to significant increases in circulating miR-223 levels compared with clopidogrel treatment. Conclusions The plasma miR-223 levels served as a predictor for bleeding during and after OPCABG. Circulating miR-223 levels were significantly elevated with ticagrelor treatment compared with clopidogrel treatment. MiR-223 may be a novel biomarker for bleeding in cardiac surgery and can help explain the different efficacies of ticagrelor and clopidogrel.
- Published
- 2020
34. Degradation of tri(2-chloroisopropyl) phosphate by the UV/H2O2 system: Kinetics, mechanisms and toxicity evaluation
- Author
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Cheng Sun, Shaogui Yang, Limin Zhang, Qiuyi Ji, Zhanqi Gao, Shiyin Li, and Huan He
- Subjects
Environmental Engineering ,Chemistry ,Health, Toxicology and Mutagenesis ,Luminescent bacteria ,0208 environmental biotechnology ,Kinetics ,Public Health, Environmental and Occupational Health ,02 engineering and technology ,General Medicine ,General Chemistry ,010501 environmental sciences ,Phosphate ,01 natural sciences ,Pollution ,020801 environmental engineering ,chemistry.chemical_compound ,Wastewater ,Yield (chemistry) ,Ultrapure water ,Environmental Chemistry ,Degradation (geology) ,Photodegradation ,0105 earth and related environmental sciences ,Nuclear chemistry - Abstract
A photodegradation technology based on the combination of ultraviolet radiation with H2O2 (UV/H2O2) for degrading tri(chloroisopropyl) phosphate (TCPP) was developed. In ultrapure water, a pseudo-first order reaction was observed, and the degradation rate constant reached 0.0035 min−1 (R2 = 0.9871) for 5 mg L−1 TCPP using 250 W UV light irradiation with 50 mg L−1 H2O2. In detail, the yield rates of Cl− and PO43− reached 0.19 mg L−1 and 0.58 mg L−1, respectively. The total organic carbon (TOC) removal rate was 43.02%. The pH value of the TCPP solution after the reaction was 3.46. The mass spectrometric detection data showed a partial transformation of TCPP into a series of hydroxylated and dechlorinated products. Based on the luminescent bacteria experimental data, the toxicity of TCPP products increased obviously as the reaction proceeded. In conclusion, degradation of high concentration TCPP in UV/H2O2 systems may result in more toxic substances, but its potential application for real wastewater is promising in the future after appropriate optimization, domestication and evaluation.
- Published
- 2019
35. Release of taste and odour compounds during Zizania latifolia decay: A microcosm system study
- Author
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Qiuyi Ji, Jing Tang, Chenfei Shi, Cencen Yu, Guoxiang Wang, Xuan Wang, and Xiaoguang Xu
- Subjects
010504 meteorology & atmospheric sciences ,Zizania latifolia ,Health, Toxicology and Mutagenesis ,Biomass ,Naphthols ,Sulfides ,010501 environmental sciences ,Poaceae ,Toxicology ,01 natural sciences ,chemistry.chemical_compound ,Nutrient ,Water Quality ,Aquatic plant ,Ecosystem ,0105 earth and related environmental sciences ,Aldehydes ,Volatile Organic Compounds ,Camphanes ,Chemistry ,Aquatic ecosystem ,fungi ,food and beverages ,General Medicine ,Pollution ,Geosmin ,Lakes ,Biodegradation, Environmental ,Taste ,Environmental chemistry ,Odorants ,Diterpenes ,Norisoprenoids ,Microcosm ,Eutrophication - Abstract
Organic matter-induced black bloom frequently occurs in a number of large eutrophic shallow lakes; this can result in the release of malodorous compounds and has a negative impact on water quality. In the study, a microcosm system containing Zizania latifolia (Z. latifolia), a common aquatic plant, was established and the release of seven taste and odour compounds, dimethyl sulphide (DMS), dimethyl disulphide (DMDS), dimethyl trisulphide (DMTS), 2-methylisoborneol (MIB), geosmin (GSM), β-cyclocitral, and β-ionone, was investigated. The results showed that these compounds were all detected during Z. latifolia decay, and that volatile organic sulphur compounds (VOSCs), such as DMS, DMDS, and DMTS, were the main factors responsible for the strong foul odour (the maximum reached 5.0 μg L−1). The release of odorous compounds was stronger during the initial seven days, and then progressively decreased in the middle stage of the experiment. Furthermore, large amounts of nutrients were released into the overlying water; nutrient concentration increased with increasing plant biomass. A positive correlation was observed between the odorant concentration and plant biomass. These results indicate that the density of aquatic plants should be controlled as part of future management of aquatic ecosystems.
- Published
- 2019
36. Association between activated partial thromboplastin time, age and bleeding events in NVAF patients receiving dabigatran
- Author
-
Zi Wang, Qiuyi Ji, Xiaoye Li, Qing Xu, and Qianzhou Lv
- Subjects
Male ,medicine.medical_specialty ,Hemorrhage ,Logistic regression ,030226 pharmacology & pharmacy ,Antithrombins ,Dabigatran ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Internal medicine ,Atrial Fibrillation ,Medicine ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Blood Coagulation ,Aged ,Retrospective Studies ,Pharmacology ,Prothrombin time ,medicine.diagnostic_test ,Receiver operating characteristic ,business.industry ,Age Factors ,Retrospective cohort study ,Atrial fibrillation ,General Medicine ,medicine.disease ,Logistic Models ,ROC Curve ,Multivariate Analysis ,Trough level ,Female ,Partial Thromboplastin Time ,business ,Partial thromboplastin time ,medicine.drug - Abstract
The purpose of this study was to analyze the association between bleeding events and coagulation assays including activated partial thromboplastin time (APTT) and prothrombin time (PT), and to determine the risk factors for bleeding in Chinese patients with non-valvular atrial fibrillation (NVAF) receiving dabigatran. We conducted a retrospective cohort study including NVAF patients receiving dabigatran 110 mg twice daily between March 2016 and November 2017. We obtained the clinical features and demographic data from the medical records and compared the baseline characteristics of the bleeding group and the no bleeding group. Receiver operating characteristic(ROC) curves and a logistic regression model were used to determine the relation between APTT and bleeding events and the predictors of bleeding. Model performance was evaluated using the derivation cohort and an independent validation cohort by area under the ROC curve (AUC). A total of 346 patients were included and bleeding events occurred in 39 (11.2%) patients. Patients with age over 65 years (OR = 2.56 [95% CI 1.20–5.43]), hypertension (OR = 2.42 [95% CI 1.11–5.26]), decreased renal function (OR = 4.27 [95% CI 1.22–14.91]) and with concomitant use of an antiplatelet drug (OR = 3.53 [95% CI 1.28–9.74]) showed higher risk for bleeding, and APTT value of the bleeding group was higher than the no bleeding group (P = 0.014). By ROC analysis we found that the appropriate overall cut-off value the of APTT ratio was 1.30, with a sensitivity of 72% and specificity of 58%. Multivariate logistic regression showed that higher age (P = 0.003; OR = 1.05 [95% CI 1.02–1.09]) and APTT ratio > 1.30 (P = 0.002; OR = 3.20 [95% CI 1.23–6.73]) were independent risk factors for bleeding in patients with dabigatran therapy. The logistic regression model exhibited moderate discrimination ability, with an AUC of 0.73 [95% CI 0.65–0.81] and 0.77 [95% CI 0.59–0.96] in the derivation cohort (n = 346) and the validation cohort (n = 71) respectively. Our study demonstrated that APTT ratio > 1.30 (at trough level) and higher age were independent risk factors for bleeding, and the logistic regression model based on these two predictors showed moderate performance, which may be useful for assessment of bleeding risk in NVAF patients with dabigatran therapy.
- Published
- 2018
37. The Preparation of Nano ZnO/PVC and the Photocatalytic Degration of Waste Water from Seafood Processing
- Author
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Qiuyi Ji, Jian Zhang, Xiao-Cai Yu, Jin-Fang Chen, Hadi Haeri, Tao Chen, and Xiao-Lin Shang
- Subjects
Materials science ,Wastewater ,Waste management ,Seafood processing ,Nano ,Photocatalysis - Published
- 2017
38. Plasma microRNAs reflecting cardiac and inflammatory injury in coronary artery bypass grafting surgery
- Author
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Xiaoye Li, Jinqiang Shen, Qianzhou Lv, Limin Xia, Dan Tian, Qiuyi Ji, and Zi Wang
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Acute coronary syndrome ,Heart Injury ,Myocardial Reperfusion Injury ,030204 cardiovascular system & hematology ,Creatine ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Troponin complex ,Troponin T ,Natriuretic Peptide, Brain ,medicine ,Creatine Kinase, MB Form ,Humans ,Coronary Artery Bypass ,Aged ,Inflammation ,Ejection fraction ,business.industry ,Interleukin-6 ,Middle Aged ,Brain natriuretic peptide ,medicine.disease ,Surgery ,MicroRNAs ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,Female ,business ,Artery - Abstract
Background Circulating microRNAs (miRs) may act as diagnostic and prognostic biomarkers for cardiovascular events in coronary artery bypass graft (CABG) surgery patients. This study measured changes in cardiac- and muscle-related miRs and cardiac and inflammatory biomarkers in acute coronary syndrome patients undergoing CABG surgery as well as investigated the correlations between these indicators. Methods Creatine kinase-MB (CK-MB), brain natriuretic peptide (BNP), cardiac troponin T (cTnT), interleukin-6 (IL-6), IL-8, IL-10, high-sensitivity C-reactive protein, and tumor necrosis factor-α were measured, and real-time quantitative polymerase chain reaction was performed to determine the plasma levels of miR-1, miR-133a, miR-208a, and miR-499 before and after surgery in 27 acute coronary syndrome patients. Left ventricular ejection fraction was also analyzed in a 3-month follow-up. Results miR-1, miR-133a, and miR-208a increased significantly (P = 0.0011; P = 0.0057; P = 0.0197, respectively) and the CK-MB, cTnT, BNP, and IL-6 levels were augmented after surgery. miR-133a, miR-208a, and miR-499 positively correlated with cTnT (r = 0.302, P = 0.027; r = 0.326, P = 0.016; r = 0.298, P = 0.029, respectively), but only miR-208a significantly correlated with CK-MB (r = 0.278, P = 0.041). miR-133a and miR-208a were significantly related to IL-6 (r = 0.287, P = 0.036; r = 0.292, P = 0.032, respectively). However, there were no significant associations between miRs and BNP or 3-month left ventricular ejection fraction. Conclusions CABG surgery–induced myocardial reperfusion damage and subsequent inflammation were related to changes in miR-1, miR-133a, and miR-208a. Notably, miR-208a was the only indicator associated with CK-MB, cTnT, and IL-6, which may reflect heart injury and inflammation in these patients.
- Published
- 2017
39. Nanocrystalline ZnO doped lanthanide oxide: An efficient photocatalyst for the degradation of diesel pollutant in seawater under visible light irradiation
- Author
-
Jian Zhang, Jinghua Liu, Qiuyi Ji, Zhiwei Nie, Liping Wang, and Xiaocai Yu
- Subjects
chemistry.chemical_compound ,Diesel fuel ,Materials science ,chemistry ,Chemical engineering ,Inorganic chemistry ,Oxide ,Photocatalysis ,Degradation (geology) ,Seawater ,Evaporation (deposition) ,Nanocrystalline material ,Catalysis - Abstract
In this study, a ZnO doped Er2O3 photocatalyst is employed to degrade diesel pollutant in seawater under visible light irradiation. The photocatalyst was prepared by a precipitation method and was characterized by SEM and XRD analysis. The experimental results proved that the nanocrystalline photocatalysts were highly active in the visible region. The photocatalytic degradation efficiency of diesel was analysed by various experimental parameters namely dosage, doping ratio, initial concentration of diesel, pH value, concentration of H2O2 and illumination time. The degradation of diesel pollution in seawater was optimized by orthogonal experiment. According to the results, the removal rate of diesel is less than 30 % without any catalysts (only evaporation). The best effect exists when the dose of catalysts was 0.6 g/L, doping ratio of catalysts was 10%, initial concentration of diesel was 0.2 g/L, pH value was 8, concentration of H2O2 was 10 mg/L, illumination time was 1 h. The removal rate of diesel can reach 99.38 %. This study would make ZnO utilize sunlight more efficiently and accelerate the practical application of photocatalytic technology in organic pollutants treatment region.
- Published
- 2017
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