Search

Your search keyword '"Xie, Jiulong"' showing total 202 results
Start Over Author "Xie, Jiulong"
202 results on '"Xie, Jiulong"'

30. Effect of Alkaline Copper Quaternary Type D on Color Retention, Mold Resistance, and Surface Physicochemical Characterization of Neosinocalamus affmis Bamboo

Author

He, Lu, Chen, Lin, Xie, Jiulong, Qi, Jinqiu, Jiang, Yongze, Xiao, Hui, Chen, Yuzhu, Huang, Xingyan, Tu, Lihua, and Shupe, Todd

Subjects
Wood -- Protection and preservation, Bamboo -- Structure -- Chemical properties -- Mechanical properties, Business, Forest products industry
Abstract

The effect of alkaline copper quaternary type D (ACQ-D) treatment on color retention, mold resistance, and surface physicochemical characterization of Neosinocalamus afinis bamboo was analyzed. The results showed that a treatment of 0.25 percent ACQ-D solution combined with pretreatment of potassium hydroxide and sodium dodecyl sulfate mixed aqueous solution can achieve a desired green color on the bamboo surface. The mold test result revealed that the treated bamboo samples had better mold resistance than samples only treated with a mold inhibitor. The thermogravimetric--Fouriertransform infrared spectroscopy analysis of the treated and the control samples indicated that the chemical structure of the surface was slightly modified, e.g., silicon was almost completely removed, which enhanced liquid permeability. The dilute ACQ-D solution combined with a proper pretreatment process could retain the favorable green color of bamboo and also improve mold resistance by slightly modifying the surface chemistry., Nosinocalamus affinis grows widely in southwest China (Cattaneo et al. 2005), especially in Sichuan Province (the geographical distribution, cultivation, and utilization center of N. affinis; Wang et al. 2009), where [...]

Published
2020
Full Text
View/download PDF

35. A comparison study on methylene-blue adsorption between moso bamboo fiber and parenchyma cells.

Author

Xie, Jiulong, Shao, Huijuan, Jiang, Yongze, Qi, Jinqiu, Zhang, Shaobo, Xiao, Hui, Chen, Yuzhu, Jia, Shanshan, Huang, Xingyan, and Chen, Qi

Subjects
BAMBOO, PHYSISORPTION, ADSORPTION (Chemistry), METHYLENE blue, ADSORPTION capacity, LIGNIN structure, DELIGNIFICATION
Abstract

This investigation aims to compare the methylene blue (MB) removal by adsorption from water, using raw and delignified bamboo cells, i.e. fiber cells (FCs) and parenchyma cells (PCs). FCs and PCs were characterized using SEM, FTIR, BET surface area, and XPS before and after delignification and MB absorption. Compared with FCs, PCs had a looser cell wall and a larger cell cavity, indicating that PCs have more physical adsorption spaces. Both PCs and FCs had higher specific surface areas and more pore-rich structures after removing lignin. Therefore, the adsorption results show that both PCs and FCs had greater adsorption capacities after removing lignin, which were 29.6 and 23.9 mg/g, respectively. The kinetics and isotherm results revealed that the adsorption process on MB corresponded to pseudo-second-order models and monolayer adsorption (the Langmuir model), respectively. PCs always had better adsorption capacities than FCs, which was due to the fact that more MB clusters were observed on PCs and a larger increment of peak corresponded to C–N/C–O in PCs. This study provides a natural material as a more economical and widely used adsorbent in adsorption applications. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

43. Analysis of Bambusa rigida Bamboo Culms between Internodes and Nodes: Anatomical Characteristics and Physical--Mechanical Properties

Author

Huang, Xingyan, Li, Feng, De Hoop, Cornells F., Jiang, Yongze, Xie, Jiulong, and Qi, Jinqiu

Subjects
Business, Forest products industry
Abstract

In this research, the anatomical characteristics and physical--mechanical properties of bamboo between internodes and nodes were investigated to evaluate the influence of nodes on the properties of bamboo culm. The results indicate that node sections had lower vascular bundle frequency, shorter fiber length, and wider parenchyma lumen diameters in comparison with internodes. The compressive strength parallel to grain, shear strength parallel to grain, and modulus of elasticity of bamboo culm internodes were significantly higher than those of the nodes. The basic density, volumetric shrinkage, and modulus of rupture of the former were also higher than the latter, although the difference was not significant., Bamboo has become an important nontimber material because of its rapid growth rate, sustainability, and short maturity cycle (3 to 5 yr). Recently, bamboo is being widely used in the [...]

Published
2018
Full Text
View/download PDF

48. Improving the anti-mould property of Moso bamboo surface by using a bamboo green colour preservation approach.

Author

He, Lu, Chen, Lin, Xiang, Lu, Liu, Han, Shao, Huijuan, Qi, Jinqiu, Jiang, Yongze, and Xie, Jiulong

Subjects
SOLUTION (Chemistry), BAMBOO, COLOR, COPPER salts, COPPER sulfate
Abstract

Bamboo is prone to mould infection and discolouration. Traditional methods of preventing mould are to peel off the green and yellow layers, and then anti-mould treatment was performed. Though these methods were efficient, the original green colour of bamboo was removed and resulted in resources waste because of the removal of the green portions. This paper presented an anti-mould property method of Moso bamboo surface by using a green colour preservation process. The results revealed that the outer bamboo skin processed a certain anti-mould effect. Based on this result, the green colour preservation method involving the alkali solution and the copper salt solution treatment processes could improve the anti-mould property of the Moso bamboo surface as well as the green colour by removing the covering wax and opening the stoma. Compared with the control, the treated specimen's mould growth was delayed by 11 days. The mould area was reduced by half, which exhibited a green colour with a low a* value of −14.91. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results