Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water

doi:10.1039/d2ew00638c

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室

	Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water
	Li, Qing 3; Su, Heng 2; Yang, Yunhui 1; Zhang, Jingjing 3; Xia, Chuanhai 2; Guo, Zhanyong 3
刊名	ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
	2022-12-22
卷号	9 期号:1 页码:294-307
ISSN号	2053-1400
DOI	10.1039/d2ew00638c
通讯作者	Guo, Zhanyong(zhanyongguo@hotmail.com)
英文摘要	In this work, glutaraldehyde-crosslinked chitosan (GCC) was prepared and its ability to remove 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions was systematically studied. Batch experiments on adsorption conditions, isotherm models, kinetic models, and thermodynamics were performed to evaluate the ability of GCC for 2,4-D removal from aqueous solution. Under optimal adsorption conditions, the adsorption capacity for 2,4-D reached 252.55 mg g(-1) with a dosage of 500 mg L-1 at pH 3. The adsorption isotherm of 2,4-D could be represented by the Freundlich model due to the high R-2 (0.9986). Adsorption kinetics could be better represented by pseudo-second order kinetics (R-2 > 0.99). The effect of temperature and thermodynamic experiments illustrated that the adsorption was exothermic and spontaneous. For other two phenoxycarboxylic acid herbicides (4-chlorophenoxyacetic acid and 2-(2,4-dichlorophenoxy)propionic acid), GCC also showed good adsorption performance under identical experimental conditions. Meanwhile, GCC can remove 75.2% of 2-chlorophenoxyacetic acid (2-CPA), 77.9% of 4-CPA, and 87.2% of 2,4-D from diluted industrial effluent. The reusability experiments indicated that GCC retained its usability after being regenerated with ethanol for five cycles.
WOS关键词	ACTIVATED CARBON ; METHYL-ORANGE ; 2,4-D ; CYCLODEXTRIN ; COMPOSITE ; GRAPHENE ; SORPTION ; DESIGN ; IONS
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
语种	英语
WOS记录号	WOS:000902088800001
资助机构	Natural Science Foundation of Shandong Province ; National Natural Science Foundation of China ; TaiShan industrial Experts Programe
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/32498]
专题	海岸带生物学与生物资源利用重点实验室
通讯作者	Guo, Zhanyong
作者单位	1.Yantai Univ, Coll Life Sci, Yantai 264003, Shandong, Peoples R China 2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Li, Qing,Su, Heng,Yang, Yunhui,et al. Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water[J]. ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,2022,9(1):294-307.
APA	Li, Qing,Su, Heng,Yang, Yunhui,Zhang, Jingjing,Xia, Chuanhai,&Guo, Zhanyong.(2022).Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water.ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,9(1),294-307.
MLA	Li, Qing,et al."Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water".ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY 9.1(2022):294-307.