气候变化领域集成服务门户(CCPortal): Adsorption of Congo red and crystal violet dyes onto cellulose extracted from Egyptian water hyacinth

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DOI	10.1007/s11069-020-04358-1
	Adsorption of Congo red and crystal violet dyes onto cellulose extracted from Egyptian water hyacinth
	Salahuddin N.; Abdelwahab M.A.; Akelah A.; Elnagar M.
发表日期	2021
ISSN	0921030X
起始页码	1375
结束页码	1394
卷号	105 期号:2
英文摘要	Abstract: The present investigation has highlighted the utility of floating aquatic Egyptian hyacinth, which is considered as a significant reason for environmental problems in Nile River, to offer an opportunity to effective disposal of waste and the feasibility of cellulose extraction (16%) utilizing hazard free method. Cellulose was extracted from water hyacinth fiber using mercerization, mercerization-bleaching and Soxhlet extraction method. Dearth of lignin and hemicellulose in all extracted cellulose were affirmed from FTIR spectra. The impact of extraction conditions on crystallinity, aspect ratio and thermal properties of the extracted cellulose is displayed. Mercerization method (5% NaOH) is adequate to obtain cellulose (C-5% NaOH) with high crystallinity (46.9%), high decomposition temperature and high aspect ratio. C-5% NaOH was used for expulsion of crystal violet, Congo red from aqueous solutions by adsorption method. Kinetics models were applied to estimate the rate constant and to depict the equilibrium isotherm for the crystal violet and Congo red adsorption process. Graphic Abstract: [Figure not available: see fulltext.] © 2020, Springer Nature B.V.
关键词	Adsorption Bleaching Crystallinity Mercerization Water hyacinth
英文关键词	adsorption; angiosperm; aquatic plant; bleaching; cellulose; crystallinity; dye; feasibility study; waste disposal; Nile River; Eichhornia crassipes; Hyacinthus
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206532
作者单位	Polymer Research Group, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
推荐引用方式 GB/T 7714	Salahuddin N.,Abdelwahab M.A.,Akelah A.,et al. Adsorption of Congo red and crystal violet dyes onto cellulose extracted from Egyptian water hyacinth[J],2021,105(2).
APA	Salahuddin N.,Abdelwahab M.A.,Akelah A.,&Elnagar M..(2021).Adsorption of Congo red and crystal violet dyes onto cellulose extracted from Egyptian water hyacinth.Natural Hazards,105(2).
MLA	Salahuddin N.,et al."Adsorption of Congo red and crystal violet dyes onto cellulose extracted from Egyptian water hyacinth".Natural Hazards 105.2(2021).