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271 results on '"Khoerunnisa, Fitri"'

2. Peer-review Statements

Author

Khoerunnisa, Fitri, Yuliani, Galuh, Zakwandi, Rizki, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Khoerunnisa, Fitri, editor, Yuliani, Galuh, editor, and Zakwandi, Rizki, editor

Published
2024
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3. Literature Review: Regulation on Greenhouse Gas Emission Management in Indonesia

Author

Khoerunnisa, Fitri, Rahman, Arief, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Alareeni, Bahaaeddin, editor, and Hamdan, Allam, editor

Published
2024
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7. Comparison of Frequency Levels in Internal Combustion Engines Using a Gasoline-Methanol Fuel Blend

Author

Erdiwansyah, Husin, Husni, Khoerunnisa, Fitri, Gani, Asri, Sarjono, R. E., Mamat, Rizalman, Ghazali, Mohd Fairusham, Rosdi, S. M., Manshoor, Bukhari, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Johari, Nasrul Hadi, editor, Wan Hamzah, Wan Azmi, editor, Ghazali, Mohd Fairusham, editor, Setiabudi, Herma Dina, editor, and Kumarasamy, Sudhakar, editor

Published
2023
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8. Absorbance Ratio Optimization as a Function of TiO2-POE Nanolubricant Spectrophotometric Wavelength Using the Quadratic Design on One Factor at a Time

Author

Nugroho, Agus, Mamat, Rizalman, Bo, Zhang, Wan Hamzah, Wan Azmi, Yusaf, Talal, Ghazali, Mohd Fairusham, Khoerunnisa, Fitri, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Johari, Nasrul Hadi, editor, Wan Hamzah, Wan Azmi, editor, Ghazali, Mohd Fairusham, editor, Setiabudi, Herma Dina, editor, and Kumarasamy, Sudhakar, editor

Published
2023
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9. A Comprehensive Investigation of Low Proportion TiO2-POE Nanolubricant Stability for Residential Air Conditioning System Application

Author

Nugroho, Agus, Mamat, Rizalman, Bo, Zhang, Wan Hamzah, Wan Azmi, Yusaf, Talal, Ghazali, Mohd Fairusham, Khoerunnisa, Fitri, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Johari, Nasrul Hadi, editor, Wan Hamzah, Wan Azmi, editor, Ghazali, Mohd Fairusham, editor, Setiabudi, Herma Dina, editor, and Kumarasamy, Sudhakar, editor

Published
2023
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28. Synthesis and Characterization of Calcium Oxide Nanoparticles and Their Application in the Adsorption of Indigo Carmine

Author

Maharani, Brigitta Stacia, Khoerunnisa, Fitri, Anwar, Budiman, Hendrawan, Hendrawan, Hamidah, Ida, Nurhayati, Mita, Sanjaya, Eli Hendrik, Maharani, Brigitta Stacia, Khoerunnisa, Fitri, Anwar, Budiman, Hendrawan, Hendrawan, Hamidah, Ida, Nurhayati, Mita, and Sanjaya, Eli Hendrik

Abstract

This research aims to determine the optimum conditions for the synthesis of CaO nanoparticles using the coprecipitation method, determine the characteristics of the CaO nanoparticles synthesized, and determine the effect of the performance of CaO nanoparticles as an adsorbent for indigo carmine dyes. CaO nanoparticles were successfully synthesized using the coprecipitation method at the optimum conditions of 1 M NaOH concentration and formation temperature of 400+200℃ with the highest % yield reaching 74.56%. The successful formation of CaO nanoparticles was proven by the appearance of a 2-theta diffraction peak of 23.12°; 39.2°; 57.9°; and 67.2° which is identical to the lattice structure of CaO with hkl indices (200), (311), (422) and (600) and a crystal size of up to 4.96 nm. SEM images support the formation of CaO nanoparticles with an average particle size of 98.1 nm and a varying size distribution. The IR spectrum of the formation of CaO nanoparticles with the appearance of Ca-O peaks at wavelengths of 3640, 1400, 860, and 791 cm-1. The adsorption capacity of indigo carmine on CaO nanoparticles was greatest at an adsorbent dose of 10 mg, adsorbate concentration of 100 ppm and a contact time of 50 minutes. The most appropriate adsorption isotherm model and adsorption kinetics model was the Koble-Corrigan model and the pseudo second order model, respectively.

Published
2024

32. pH-responsive chitosan/poly (vinyl pyrrolidone) based hydrogel composites: Antibacterial properties and release kinetics of diclofenac sodium

Author

Khoerunnisa, Fitri, primary, Yolanda, Yustika Desti, additional, Nurhayati, Mita, additional, Hendrawan, Hendrawan, additional, Sanjaya, Eli Hendrik, additional, Triwardono, Joko, additional, Astuti, Wijayanti Dwi, additional, Handayani, Murni, additional, Oh, Wen Da, additional, and Ooi, Boon Seng, additional

Published
2023
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34. Fabrication of chitosan/graphene oxide/TiO2 (Ch/GO/TiO2) nanocomposite film for photocatalytic degradation of acetaminophen.

Author

Rahmayanti, Yosephin Dewiani, Handayani, Murni, Jamaluddin, Khoirul, Suharty, Neng Sri, Anshori, Isa, Khoerunnisa, Fitri, Lestari, Witri Wahyu, Sanjaya, Eli Hendrik, and Gunawan, Triyanda

Subjects
PHOTODEGRADATION, CHITOSAN, NANOCOMPOSITE materials, GRAPHENE, ACETAMINOPHEN, EDIBLE coatings
Abstract

Improper disposal of pharmaceutical waste in water is hazardous to the environment. Several ways have been developed to address this issue, with the photocatalyst being a well-known example. In recent years, there has been a surge in interest in the use of stable photocatalysts for water treatment. Here, we used a straightforward approach to fabricate nanocomposite films of chitosan/graphene oxide/TiO2 (Ch/GO/TiO2) via solution casting. The graphene oxide was synthesized via Hummer's method and characterized using UV-vis spectrophotometer, X-ray diffraction (XRD), Scanning electron microscope (SEM), and energy dispersive X-ray (EDX). The successful result of obtained GO was applied by combining with TiO2 in chitosan matrix to form (Ch/GO/TiO2) nanocomposite films. Films were made by varying the ratio of graphene oxide (GO) and titanium dioxide (TiO2) in chitosan matrix. The films were also characterized using FTIR, SEM and EDX. The photocatalytic degradation of acetaminophen (N-(4-hydroxyphenyl) acetamide) was investigated in a batch reactor which yielded a maximum of 10% of 50 ppm acetaminophen under UV irradiation for 120 minutes. [ABSTRACT FROM AUTHOR]

Published
2024
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38. Development of Teaching Materials and Concept Maps About the Relationship Between Sustainability and Chitosan for Water Treatment: Qualitative Content Analysis.

Author

Andini, Cita Rachmi, Hernani, and Khoerunnisa, Fitri

Subjects
CONCEPT mapping, SCIENTIFIC literacy, WATER purification, CONCEPT learning, CHITOSAN, FINANCIAL literacy
Abstract

Chitosan is formed by deacetylation of chitin using strong alkali at high temperatures. The content of the active amine groups in chitosan is widely used as an alternative natural coagulant that is environmentally friendly. So, it can be included in learning materials about the concept of sustainability. This study aimed to produce concept maps and Teaching Learning Sequences (TLS) based on scientists' conceptions of sustainability on the topic of water treatment using natural coagulants. The method used in this research was qualitative content analysis. The research instruments included content analysis formats and sustainability aspects. The content analysis process included literature collection, descriptive analysis, category selection, and material evaluation with didactic aspects. This research produced concept maps and TLS that described the relationship between water treatment using natural coagulants and colloid content. Additionally, TLS related to sustainability education in the form of learning about water treatment using natural coagulants from chitosan was also developed. The concept map and TLS that have been compiled show the relationship between mapping aspects of scientific literacy and environmentally friendly water treatment using natural coagulants. The research results can be used as a basis for developing teaching materials and didactic designs. [ABSTRACT FROM AUTHOR]

Published
2024
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43. Function of Conjugated π-Electronic Carbon Walled Nanospaces Tuned by Molecular Tiling

Author

Fujimori, Toshihiko, Khoerunnisa, Fitri, Ohba, Tomonori, Gotovac-Atlagic, Suzana, Tanaka, Hideki, Kaneko, Katsumi, Hull, Robert, Series editor, Jagadish, Chennupati, Series editor, Osgood, Richard M., Series editor, Parisi, Jürgen, Series editor, Seong, Tae-Yeon, Series editor, Uchida, Shin-ichi, Series editor, Wang, Zhiming M., Series editor, Ishii, Hisao, editor, Kudo, Kazuhiro, editor, Nakayama, Takashi, editor, and Ueno, Nobuo, editor

Published
2015
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