Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7886711 | Ceramics International | 2018 | 9 Pages |
Abstract
A nano-sized Cu2O/TiO2 nanosheet arrays (TiO2 NSAs) heterojunction film was fabricating by electrodepositing Cu2O onto TiO2 NSAs using chronopotentiometry. The cyclic alternating current on working electrode is the main contribution to nano-sized Cu2O, which in turn improve the photoelectrochemical properties of the Cu2O/TiO2 NSAs heterojunction film because nano-sized Cu2O, with better electron transfer ability and smaller change transfer resistance in electrolyte, increases the separation and transportation efficiencies of photo-induced electron-hole pairs. Furthermore, electrolyte pH value and deposition current density have significant influence on Cu2O particles size. The results show that the sample prepared with pHâ¯=â¯8 and current density jâ¯=â¯0.25â¯mA/cm2 exhibits best photoelectrochemical properties because of the smaller sized Cu2O and uniform distribution on TiO2 NSAs.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jinbo Xue, Mingzhe Shao, Qianqian Shen, Xuguang Liu, Husheng Jia,