ATO/SiO2电极制备及其对对氯苯酚电催化降解研究

doi:10.61558/2993-074X.2866

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (4): 427-432. doi: 10.61558/2993-074X.2866

ATO/SiO2电极制备及其对对氯苯酚电催化降解研究

柴张琳，张瑞丰*，肖通虎，梁云霄

宁波大学，材料科学与化学工程学院，浙江宁波315211

收稿日期:2011-07-02 修回日期:2011-07-22 出版日期:2011-11-28 发布日期:2011-08-01
通讯作者: 张瑞丰 E-mail:zhangruifeng@nbu.edu.cn
基金资助:
973前期专项(No.2010CB635116)及宁波大学王宽诚基金资助

Preparation and Application of macroporous ATO/SiO2 Electrode in Electrochemical Degradation of 4-Chlorophenol

Preparation of macroporous ATO/SiO2 Electrode and Its Application in Electrochemical Degradation of 4-Chlorophenol

Faculty of Material Science and Chemical Engineering , Ningbo University, Ningbo 315211, Zhejiang, China

Received:2011-07-02 Revised:2011-07-22 Published:2011-11-28 Online:2011-08-01
Contact: ZHANG Rui-feng E-mail:zhangruifeng@nbu.edu.cn

摘要/Abstract

摘要： 以SnCl2/SbCl3的乙二醇/乙腈混合液浸渍大孔SiO2载体，经多次水解沉积、高温煅烧制备大孔ATO/SiO2电极.SEM和XRD分析表明ATO（Sb-SnO2）微粒均匀负载在SiO2薄层上，4次水解沉积材料体积电阻率10 ?•cm，比表面77 m2•g-1.电化学测试表明，大孔ATO/SiO2电极在酸性条件下析氧电位2.5 V且对对氯苯酚的降解具有良好的电催化性能，而Fe2+的添加又可显著提高羟基自由基的产生率，从而进一步增大该电极的电流效率.

关键词: 大孔二氧化硅, 纳米ATO, 电催化降解, 对氯苯酚

Abstract: The macroporous ATO/SiO2 materials were prepared through multiple steps of hydrolysis deposition in ethylene glycol and acetonitrile mixed solutions of SnCl2/SbCl3 and subsequent calcination at high temperature. The structures of the obtained materials were characterized by means of SEM and XRD. The results showed that the nano-ATO chemically deposited on the SiO2 support underwent well-controlled aggregation and recrystallization to form a sandwich structure (ATO-SiO2-ATO). Through four times loading of ATO the volume resistivity and the specific surface area reached 10 ??cm and 77 m2?g-1, respectively. The oxygen evolution potential on macroporous ATO/SiO2 anode was 2.5 V in acidic condition and exhibited the electro-catalysis ability in degradation of 4-chlorophenol. It was also found that Fe2+ can significantly improve the current efficiency of ATO/SiO2 macroporous electrode in 4-chlorophenol solution by promoting the generation of OH radicals.

Key words: macroporous SiO2, nano-ATO, electro-catalytic degradation, 4-chlorophenol

中图分类号:

X703
TB331

柴张琳, 张瑞丰, 肖通虎, 梁云霄. ATO/SiO2电极制备及其对对氯苯酚电催化降解研究[J]. 电化学（中英文）, 2011, 17(4): 427-432.

CHAI Zhang-Lin, ZHANG Rui-Feng, XIAO Tong-Hu, LIANG Yun-Xiao. Preparation and Application of macroporous ATO/SiO2 Electrode in Electrochemical Degradation of 4-Chlorophenol[J]. Journal of Electrochemistry, 2011, 17(4): 427-432.

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https://electrochem.xmu.edu.cn/CN/Y2011/V17/I4/427

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ATO/SiO2电极制备及其对对氯苯酚电催化降解研究

Preparation and Application of macroporous ATO/SiO2 Electrode in Electrochemical Degradation of 4-Chlorophenol

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