青岛科技大学纳米电催化课题组
当前位置: 首页>>组内动态>>正文

 

 

祝贺华庆峰能带和界面调控的光解水制氢CoP/P-g-C3N4催化剂文章被ACS Sus Chem Eng接受发表!
2020-02-06 15:09  

Band modulation and interfacial engineering to generate efficient visible-light-induced bi-functional photocatalysts

Qingfeng Hua, Xin Zhou, Bingsen Zhang§, Min Wang, Jing Liu, Yongzhao Wang§, Luhua Jiang,*

Nanomaterials & Electrocatalysis Laboratory, College of Materials and Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, P.R. China.

College of Environment and Chemical Engineering, Dalian University, 10 Xuefu Street, Dalian Economic Technological Development Zone, Dalian 116622, P. R. China.

§ Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P.R. China.

Corresponding author:

E-mail: luhuajiang@qust.edu.cn

ABSTRACT: To construct photocatalysts with matched band alignments and intimate interfaces is crucial but challengeable for photocatalysis. Herein, we for the first time report a strategy for band modulation and interface engineering to generate an efficient bifunctional photocatalyst. By interstitially doping P into g-C3N4 and quantizing CoP, the fabricated CoPQD/P-g-C3N4 hybrid possesses a tailed heterojunction with intimate interfaces via the in-situ generated interfacial Co-P bonds. CoPQD/P-g-C3N4 as a noble-metal free bifunctional photocatalyst displays excellent photocatalytic redox efficiency for both hydrogen generation and pollutant degradation under visible light. Combining experimental with theoretical investigation, it is manifested that the matched band alignments of the CoPQD/P-g-C3N4 heterojunction and the intimate interface via the Co-P interfacial bonds facilitate the photogenerated charge separation/transfer and meanwhile guarantee long-term stability. This work addresses the importance of band alignments and heterojunction interface, and presents an effective strategy for band modulation and interface engineering of noble-metal free photocatalysts.

KEYWORDS: photocatalyst, band alignment, interface engineering, hydrogen evolution, pollutant degradation

doi: 10.1021/acssuschemeng.9b07252






关闭窗口