期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Electronic structure and enhanced photoelectrocatalytic performance of Ru_(x)Zn_(1-x)O/Ti electrodes 被引量:4
1
作者 Yanqun SHAO Keke FENG +6 位作者 Jie GUO Rongrong ZHANG Sijiang HE Xinli WEI Yuting LIN Zhanghao YE Kongfa CHEN 《Journal of Advanced Ceramics》 SCIE CAS CSCD 2021年第5期1025-1041,共17页
Modification is one of the most important and effective methods to improve the photoelectrocatalytic(PEC)performance of ZnO.In this paper,the Ru_(x)Zn_(1-x)O/Ti electrodes were prepared by thermal decomposition method... Modification is one of the most important and effective methods to improve the photoelectrocatalytic(PEC)performance of ZnO.In this paper,the Ru_(x)Zn_(1-x)O/Ti electrodes were prepared by thermal decomposition method and the effect of Ru content on those electrodes' electronic structure was analyzed through the first-principles calculation.Various tests were also performed to observe the microstructures and PEC performance.The results showed that as the Ru^(4+) transferred into ZnO lattice and replaced a number of Zn^(2+),the conduction band of ZnO moved downward and the valence band went upward.The number of photogenerated electron-hole pairs increased as the impurity levels appeared in the band gap.In addition,ZnO nanorods exhibited a smaller grain size and a rougher surface under the effect of Ru.Meanwhile,the RuO_(2) nanoparticles on the surface of ZnO nanorods acted as the electron-transfer channel,helping electrons transfer to the counter electrode and delaying the recombination of the electron-hole pairs.Specifically,the Ru_(x)Zn_(1-x)O/Ti electrodes with 9.375 mol% Ru exhibited the best PEC performance with a rhodamine B(RhB)removal rate of 97%,much higher than the combination of electrocatalysis(EC,12%)and photocatalysis(PC,50%),confirming the synergy of photoelectrocatalysis. 展开更多
关键词 Ru_(x)Zn_(1-x)O/Ti electrode first-principles calculation electric collector photoelectric synergistic catalysis
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部