Photoelectrochemical synergetic degradation of acid orange II with TiO2 modified beta-PbO2 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

	Photoelectrochemical synergetic degradation of acid orange II with TiO2 modified beta-PbO2 electrode
	Li, GT; Qu, JH; Wu, RC
刊名	CHINESE SCIENCE BULLETIN
	2005
卷号	50 期号:12 页码:1185-1190
关键词	beta-PbO2 TiO2 photoelectrochemical catalysis photoelectrochemical synergism Acid Orange II
英文摘要	Electrochemically assisted photocatalysis is an effective approach to improve photocatalytic efficiency. In this paper, modified beta-PbO2 electrode was prepared by TiO2 co-deposition and characterized by SEM and XRD. Then 2.0 g TiO2 modified beta-PbO2 electrode (2.0 g TiO2 involved in the 200 mL co-deposition solution) was used in electrochemically assisted photocatalytic degradation of Acid Orange II and the influence of initial pH values was investigated when the potential applied across the electrodes was 1.5 V. When the potential applied was 2.5 V, the difference of the degradation process and the final products were studied. The results indicated that 2.0 g TiO2 modified beta-PbO2 electrode was different from the unmodified one in that the beta-PbO2 crystals became finer and the electrode became more compact and more uniform. The synergetic effect in electrochemically assisted photocatalytic degradation of Acid Orange 11 was observed and degradation efficiency and TOC removal were the highest at initial solution pH 2.0. By UV-visible spectral analysis, it was proved that photoelectrochemical synergetic degradation of Acid Orange 11 went through the step of producing main product maleic acid for the solution at the initial pH 2.0 within 2 h, but the degradation was slow for the solution at the initial pH 12.0.
学科主题	Science & Technology - Other Topics
研究领域[WOS]	Science & Technology - Other Topics
WOS记录号	WOS:000230762700004
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23304]
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	Li, GT,Qu, JH,Wu, RC. Photoelectrochemical synergetic degradation of acid orange II with TiO2 modified beta-PbO2 electrode[J]. CHINESE SCIENCE BULLETIN,2005,50(12):1185-1190.
APA	Li, GT,Qu, JH,&Wu, RC.(2005).Photoelectrochemical synergetic degradation of acid orange II with TiO2 modified beta-PbO2 electrode.CHINESE SCIENCE BULLETIN,50(12),1185-1190.
MLA	Li, GT,et al."Photoelectrochemical synergetic degradation of acid orange II with TiO2 modified beta-PbO2 electrode".CHINESE SCIENCE BULLETIN 50.12(2005):1185-1190.