Application of magnetic-graphene oxide/poly(allylamine hydrochloride) microcapsules for adsorption of dyes

被引：0

作者：

Zhao Z. ^{[1
,2
]}

Li Q. ^{[1
,2
]}

Sun Y. ^{[1
,2
]}

Gong J. ^{[1
,2
]}

Li Z. ^{[1
,2
]}

Zhang J. ^{[1
,2
,3
]}

机构：

[1] School of Textile Science and Engineering, Tiangong University, Tianjin

[2] Key Laboratory of Advanced Textile Composites, Ministry of Education, Tiangong University, Tianjin

[3] Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao, 266071, Shandong

来源：

Fangzhi Xuebao/Journal of Textile Research | 2020年 / 41卷 / 07期

关键词：

Adsorption; Dyeing wastewater; Graphene oxide; Magnetic microcapsules; Methylene blue;

D O I：

10.13475/j.fzxb.20190903908

中图分类号：

学科分类号：

摘要：

Facing the problem that printing and dyeing wastewater pollutes environment, this paper reports on hybrid magnetic microcapsules with Fe3O4-graphene oxide (Fe3O4-GO) and poly(allylamine hydrochloride) (PAH) for purifying and cleaning the wastewater during dyeing processes. These microcapsules were made through layer-by-layer (LBL) self-assembly due to the opposite charges of Fe3O4-GO and PAH. The structure and morphology of Fe3O4-GO and (PAH/Fe3O4-GO)n were characterized. Cationic methylene blue was then used to study the adsorption behaviour and mechanism of magnetic microcapsules. When methylene blue dye (0.2-3.0 mg/mL) was absorbed for 20 minutes by microcapsules, the adsorption reached maximum. Moreover, the absorption reaches maximum value at pH of 12 with an adsorption rate of 96.5%. The pseudo-second-order adsorption kinetic and Langmuir adsorption isothermal model are more suitable for describing the adsorption process of methylene blue on magnetic (PAH/Fe3O4-GO)2 microcapsules, with the theoretical maximum adsorption of 219.996 mg/g. Copyright No content may be reproduced or abridged without authorization.

引用

页码：109 / 116

页数：7

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