Efficient degradation of rhodamine B using modified graphite felt gas diffusion electrode by electro-Fenton process

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	Efficient degradation of rhodamine B using modified graphite felt gas diffusion electrode by electro-Fenton process
	Tian, Jiangnan 1,2; Olajuyin, Ayobami Matthew 1; Mu, Tingzhen 1,2; Yang, Maohua 1; Xing, Jianmin 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2016-06-01
卷号	23 期号:12 页码:11574-11583
关键词	Electro-Fenton Graphite felts modification RhB Mineralization current efficiency Biodegradability
ISSN号	0944-1344
英文摘要	The electro-Fenton (EF) process treatment of 0.1-M (rhodamine B) RhB solution was studied with different graphite cathode materials, and graphite felt (GF) was selected as a promising material in further investigation. Then, the degradation performances of gas diffusion electrode (GDE) and graphite felt (GF) were compared, and GDE was confirmed to be more efficient in RhB removal. The operational parameters such as Fe2+ dosage and current density were optimized, and comparison among different modified methods-polytetrafluoroethylene-carbon black (PTFE-CB), polytetrafluoroethylene-carbon nanotube (PTFE-CNT), electrodeposition-CB, and electrodeposition-CNT-showed 98.49 % RhB removal by PTFE-CB-modified cathode in 0.05 M Na2SO4 at a current density of 50 A/m(2) and an air flow rate of 1 L/min after 20 min. Meanwhile, after cathode modified by PTFE-CB, the mineralization efficiency and mineralization current efficiency performed absolutely better than the pristine one. Cyclic voltammograms, SEM images, contact angles, and BET surface area were carried out to demonstrate stronger current responses and higher hydrophilicity of GF after modified. The value of biochemical oxygen demand/chemical oxygen demand (BOD5/COD) increased from 0.049 to 0.331 after 90-min treatment, suggesting the solution was biodegradable, and the modified cathode was confirmed to be stable after ten circle runs. Finally, a proposed degradation pathway of RhB was put forward.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	CARBON NANOTUBES ; AQUEOUS-SOLUTION ; ORANGE G ; OXIDATION ; DYE ; CATHODE ; WATER ; REMOVAL ; H2O2 ; DECOLORIZATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000377476700014
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/20961]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tian, Jiangnan,Olajuyin, Ayobami Matthew,Mu, Tingzhen,et al. Efficient degradation of rhodamine B using modified graphite felt gas diffusion electrode by electro-Fenton process[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(12):11574-11583.
APA	Tian, Jiangnan,Olajuyin, Ayobami Matthew,Mu, Tingzhen,Yang, Maohua,&Xing, Jianmin.(2016).Efficient degradation of rhodamine B using modified graphite felt gas diffusion electrode by electro-Fenton process.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(12),11574-11583.
MLA	Tian, Jiangnan,et al."Efficient degradation of rhodamine B using modified graphite felt gas diffusion electrode by electro-Fenton process".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.12(2016):11574-11583.