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Sustainable Disposal of Cr(VI): Adsorption-Reduction Strategy for Treating Textile Wastewaters with Amino-Functionalized Boehmite Hazardous Solid Wastes

文献类型：期刊论文

作者Zhang, Hailin1,2; Li, Ping1; Wang, Zheming3; Cui, Wen Wen1,2; Zhang, Yang1; Zhang, Ying1; Zheng, Shili1; Zhang, Yi1
刊名ACS SUSTAINABLE CHEMISTRY & ENGINEERING
出版日期2018-05-01
卷号6期号:5页码:6811-6819
关键词Sustainable disposal Adsorption-reduction method amino-functionalized boehmite hazardous wastes Textile wastewaters Chromium-aluminum tanning agent Chitosan
ISSN号2168-0485
DOI10.1021/acssuschemeng.8b00640
英文摘要The present work reports a sustainable adsorption-reduction strategy for disposal of Cr(VI)-bearing wastes. By cross-linking between boehmite and chitosan to prepare amino-functionalized boehmite adsorbents, Cr(VI) could be adsorbed from the Cr(VI)-containing solutions by the adsorbents with the maximum adsorption capacity of 120.2 mg/g, which was improved about 3 times compared to that of boehmite. Adsorption mechanism showed that the Cr(VI) was adsorbed by complexing with -NH2 bonds and exchanging with -OH groups of adsorbents. About 31% Cr(VI) was simultaneously reduced to Cr(III) by the reactive -OH and -NH2 electron acceptor of adsorbents. After adsorption, the Cr(VI/III) and boehmite of adsorbents were dissolved in 25% H2SO4 solution, the remaining Cr(VI) was reduced to Cr(III) with 100% reduction yield, and the CrxAl2(OH)(2y)(SO4)(8-y)center dot nH(2)O was prepared as product, while the insoluble chitosan was recycled in a closed loop. In application, column experiments results showed that the gamma-AlOOH hazardous wastes could effectively dispose the Cr(VI)-containing textile wastewaters, and aluminum and chromium in the wastes could be comprehensively used to prepare chromium-aluminum tanning agent. The developed "waste-treating-waste" method leads to minimum pollutant emission and avoids the complex post-treatment problems.
WOS关键词CROSS-LINKED CHITOSAN ; POLYANILINE HYBRID HYDROGEL ; FIXED-BED COLUMN ; AQUEOUS-SOLUTIONS ; PHOTOCATALYTIC ACTIVITY ; CARBOXYMETHYL CHITOSAN ; COMPOSITE MICROSPHERES ; HEXAVALENT CHROMIUM ; EFFICIENT REMOVAL ; ACTIVATED CARBON
资助项目National Natural Science Foundation of China[51574212] ; National Natural Science Foundation of China[U1403195] ; National Natural Science Foundation of China[51274179] ; Major State Basic Research Development Program of China[2013CB632605]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Engineering
语种英语
WOS记录号WOS:000431927500123
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; Major State Basic Research Development Program of China
源URL[http://ir.ipe.ac.cn/handle/122111/24620]  
专题中国科学院过程工程研究所
通讯作者Li, Ping
作者单位1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, 1 North Second St, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, 902 Battelle Blvd, Richland, WA 99354 USA
推荐引用方式
GB/T 7714		 Zhang, Hailin,Li, Ping,Wang, Zheming,et al. Sustainable Disposal of Cr(VI): Adsorption-Reduction Strategy for Treating Textile Wastewaters with Amino-Functionalized Boehmite Hazardous Solid Wastes[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(5):6811-6819.
APA Zhang, Hailin.,Li, Ping.,Wang, Zheming.,Cui, Wen Wen.,Zhang, Yang.,...&Zhang, Yi.(2018).Sustainable Disposal of Cr(VI): Adsorption-Reduction Strategy for Treating Textile Wastewaters with Amino-Functionalized Boehmite Hazardous Solid Wastes.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(5),6811-6819.
MLA Zhang, Hailin,et al."Sustainable Disposal of Cr(VI): Adsorption-Reduction Strategy for Treating Textile Wastewaters with Amino-Functionalized Boehmite Hazardous Solid Wastes".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.5(2018):6811-6819.

入库方式： OAI收割

来源：过程工程研究所

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