A sodium hyposulfite fuel cell for efficient Cr(VI) removal

doi:10.1016/j.chemosphere.2022.133803

	A sodium hyposulfite fuel cell for efficient Cr(VI) removal
	Wang, Dongfang 1,2; Zong, Zhiqiang 1; Ye, Jinghong 1; Wu, Qingchuan 3; Zhang, Xiaojiang 1; Wu, Zhengyan 3; Zhang, Jing 4; Xu, He 1; Cai, Dongqing 1,2
刊名	CHEMOSPHERE
	2022-05-01
卷号	294
关键词	Dual-chamber non-biological fuel cell Graphite felt Cr(VI) Electricity Na2S2O3
ISSN号	0045-6535
DOI	10.1016/j.chemosphere.2022.133803
通讯作者	Xu, He(hexu@dhu.edu.cn) ; Cai, Dongqing(dqcai@dhu.edu.cn)
英文摘要	This work shows a strategy of reducing hexavalent chromium (Cr(VI)) by sodium hyposulfite (Na2S2O3) with self-generated electricity via a dual-chamber non-biological fuel cell (D-nBFC). Therein, Na2S2O3 was electrooxidized on graphite felt (GF) at anode and Cr(VI) in strong acidic solution was electro-reduced at GF/CCP cathode (GF decorated with conductive carbon paint (CCP)). Additionally, an agar salt bridge, consisting of saturated KCl solution, was introduced to form complete circuit by offering ions. The results showed that Cr(VI) was reduced to trivalent chromium (Cr(III)) and the D-nBFC system could produce electricity in this process. This system could obtain a high Cr(VI) removal efficiency (97.0%), 110 mu A maximum current, and 13.4 mW m(-2) maximum power density in 4 h. In addition, the proposed system had high reusability after five cycles and the relative standard deviation was only 3.4% (n = 5). Thus, this D-nBFC system provides a promising and ecofriendly method for treatment of Cr(VI) pollution and generating electricity simultaneously, and also has potential application value for other heavy metals remediation.
资助项目	National Natural Science Foundation of China[52000025] ; Fundamental Research Funds for the Central Universities[2232020D-22] ; Key R&D Program of Guangdong Province[2020B0202010005] ; Science and Technology Service Program of Chinese Academy of Science[KFJ-STS-QYZD-199] ; Key R&D Program of Ningxia Province[2018BBF02021] ; Key R&D Program of Inner Mongolia Autonomous Region[2021GG0300] ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology ; China Postdoctoral Science Foundation[2019M652225]
WOS关键词	HEXAVALENT CHROMIUM ; HEAVY-METAL ; ELECTRICITY ; GENERATION ; REDUCTION ; SOIL ; TEA
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000773833100003
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Key R&D Program of Guangdong Province ; Science and Technology Service Program of Chinese Academy of Science ; Key R&D Program of Ningxia Province ; Key R&D Program of Inner Mongolia Autonomous Region ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128711]
专题	中国科学院合肥物质科学研究院
通讯作者	Xu, He; Cai, Dongqing
作者单位	1.Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China 2.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China 4.Huaiyin Inst Technol, Natl & Local Joint Engn Res Ctr Mineral Salt Deep, Huaian 223003, Peoples R China
推荐引用方式 GB/T 7714	Wang, Dongfang,Zong, Zhiqiang,Ye, Jinghong,et al. A sodium hyposulfite fuel cell for efficient Cr(VI) removal[J]. CHEMOSPHERE,2022,294.
APA	Wang, Dongfang.,Zong, Zhiqiang.,Ye, Jinghong.,Wu, Qingchuan.,Zhang, Xiaojiang.,...&Cai, Dongqing.(2022).A sodium hyposulfite fuel cell for efficient Cr(VI) removal.CHEMOSPHERE,294.
MLA	Wang, Dongfang,et al."A sodium hyposulfite fuel cell for efficient Cr(VI) removal".CHEMOSPHERE 294(2022).