Ecotoxicological characterization of photoelectrocatalytic process for degradation of pentachlorophenol on titania nanotubes electrode

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Ecotoxicological characterization of photoelectrocatalytic process for degradation of pentachlorophenol on titania nanotubes electrode
	Liu, Wei ; Quan, Xie ; Cui, Qing ; Ma, Mei ; Chen, Shuo ; Wang, Zi-Jian
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2008-09
卷号	71 期号:1 页码:267-273
关键词	photoelectrocatalysis pentachlorophenol luminescent bacteria EROD induction dioxin environmental safety
英文摘要	Luminescence bioassay using Vibrio fischeri and in vitro ethoxyresorufin-O-deethylase (EROD) induction bioassay using H4-IIE rat hepatoma cell were employed to test toxicity changes during the photoelectrocatalysis process for the degradation of pentachlorophenol (PCP) on TiO2 nanotubes electrode. Acute toxicity of the reaction solution reduced by 83% after 120min of irradiation. Bioassay-derived 2,3,7,8-TCDD equivalents (TEQ(bio)) increased from 0.72 to 6.72 ng 1(-1) during the former reaction stage, decreasing rapidly to 1.25 ng 1(-1) during the latter reaction stage. HRGC/HRMS analysis detected polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) congeners in the reaction mixtures. TEQ(bio) and chemical-derived 2,3,7,8-TCDD equivalents (TEQ(cal)) were about of the same order of magnitude. Both results illustrated the formation of dioxins and their removal by photoelectrocatalysis. Moreover, photoelectrocatalysis showed a significant priority over direct photolysis and photocatalysis depending on the reaction conditions, not only for PCP removal but also for reduction in toxicity. (C) 2007 Elsevier Inc. All rights reserved.
WOS记录号	WOS:000258550400030
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22228]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Liu, Wei,Quan, Xie,Cui, Qing,et al. Ecotoxicological characterization of photoelectrocatalytic process for degradation of pentachlorophenol on titania nanotubes electrode[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2008,71(1):267-273.
APA	Liu, Wei,Quan, Xie,Cui, Qing,Ma, Mei,Chen, Shuo,&Wang, Zi-Jian.(2008).Ecotoxicological characterization of photoelectrocatalytic process for degradation of pentachlorophenol on titania nanotubes electrode.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,71(1),267-273.
MLA	Liu, Wei,et al."Ecotoxicological characterization of photoelectrocatalytic process for degradation of pentachlorophenol on titania nanotubes electrode".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 71.1(2008):267-273.