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

Authors

Zhang-Lin CHAI
Rui-Feng ZHANG
Tong-Hu XIAO
Yun-Xiao LIANG

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.

Graphical Abstract

Keywords

macroporous SiO2, nano-ATO, electro-catalytic degradation, 4-chlorophenol

DOI Link

https://doi.org/10.61558/2993-074X.2866

Publication Date

2011-11-28

Online Available Date

2011-08-01

Revised Date

2011-07-22

Received Date

2011-07-02

Recommended Citation

Zhang-Lin CHAI, Rui-Feng ZHANG, Tong-Hu XIAO, Yun-Xiao LIANG. Preparation and Application of macroporous ATO/SiO2 Electrode in Electrochemical Degradation of 4-Chlorophenol[J]. Journal of Electrochemistry, 2011 , 17(4): Article 13.
DOI: 10.61558/2993-074X.2866
Available at: https://jelectrochem.xmu.edu.cn/journal/vol17/iss4/13