Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites
	Kong, Yan ; Zhuang, Yuan ; Han, Zhiyong ; Yu, Jianwei ; Shi, Baoyou ; Han, Kun ; Hao, Haotian
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-04-01
卷号	78 页码:81-91
关键词	Adsorption Alginate Poly(vinyl alcohol) Hydrogel Methylene Blue
ISSN号	1001-0742
英文摘要	Hydrogels have attracted large attention in wastewater treatment fields due to their low-cost and good interaction with pollutants, among which novel double network hydrogel is an outstanding class. To expand the application of double network hydrogel in water treatment, in this study, eco-friendly physically cross-linked double network polymer hydrogel beads (DAP) are prepared and studied in depth on the mechanism of Methylene Blue (MB) adsorption; and then the polymer hydrogels are further functionalized by inorganic materials. MB adsorption on DAP favors alkaline condition which is due to the increase of electrostatic attraction and adsorption site, and it reaches equilibrium within 10 hr, which is faster than that of the single network hydrogel beads (SAP). Through thermodynamics study, the process shows to be an exothermic and spontaneous process. The adsorption isotherms are well fitted by Langmuir model, with a maximum monolayer adsorption capacity of 1437.48 mg/g, which is larger than SAP (1255.75 mg/g). After being functionalized with common inorganic materials including activated carbon, Fe3O4 and graphene oxide (GO), the composites show to have larger pore sizes and have obvious increases in adsorption capacity especially the one contains GO. Then the composites contains Fe3O4 are used as heterogeneous Fenton catalyst which shows to have excellent performance in MB degradation. The results indicate the potential of polymer double network to be functionalized in environmental areas. (c) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43440]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Kong, Yan,Zhuang, Yuan,Han, Zhiyong,et al. Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,78:81-91.
APA	Kong, Yan.,Zhuang, Yuan.,Han, Zhiyong.,Yu, Jianwei.,Shi, Baoyou.,...&Hao, Haotian.(2019).Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites.JOURNAL OF ENVIRONMENTAL SCIENCES,78,81-91.
MLA	Kong, Yan,et al."Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites".JOURNAL OF ENVIRONMENTAL SCIENCES 78(2019):81-91.