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Updated: May 27, 2025
Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
Published on: May 2, 2014
Photoelectrochemical water splitting with In2O3- nanofilm/black Ti-Si-O composite photoanode
Jianing Cui1, Dongyan Ding1, Shengzhe Yue1
1SJTU-Zhongmu Joint Research Center for Materials and Technology of Intelligent and Connected Vehicles, Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 China dyding@sjtu.edu.cn.
Abstract:
Fabricating TiO2 with heterostructures is one of the important ways to enhance its photocatalytic activity. In this work, we fabricated black Si-doped TiO2 nanotubes (Ti-Si-O) through anodization and Sn reduction, and constructed In2O3- nanofilm/black Ti-Si-O composite photoanode through electrochemical deposition and Ar annealing. The composition evolution, morphology, optical properties and photoelectrochemical performance of the composite photoanode were investigated. The In2O3- /black Ti-Si-O composite photoanode exhibited excellent PEC hydrogen production performance, with a high photocurrent density of 3.76 mA cm-2 at 0 V Ag/AgCl, which was 2.16 times that of the black Ti-Si-O photoanode. The synergistic effects of Si doping, Ti3+/O vacancies and the modification with In2O3- nanofilms provide a beneficial approach to design of high-efficiency photoanodes.
