文献类型：期刊文献

英文题名：Construction of novel and noble-metal-free WC/CdIn2S4 Schottky heterojunction photocatalyst for efficient photocatalytic H2 evolution

作者：Qiu, Hong[1,2];Li, Wenjun[1];Ma, Xiaohui[1,3]

第一作者：Qiu, Hong;邱红

通讯作者：Li, WJ[1]

机构：[1]Univ Sci & Technol Beijing, Beijing Key Lab Sci & Applicat Funct Mol & Crystal, Beijing 100083, Peoples R China;[2]Beijing Union Univ, Sch Appl Sci & Technol, Beijing 102200, Peoples R China;[3]Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Peoples R China

第一机构：Univ Sci & Technol Beijing, Beijing Key Lab Sci & Applicat Funct Mol & Crystal, Beijing 100083, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Beijing, Beijing Key Lab Sci & Applicat Funct Mol & Crystal, Beijing 100083, Peoples R China.

年份：2024

卷号：156

外文期刊名：JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS

收录：;EI(收录号：20240615519872);Scopus(收录号：2-s2.0-85183985891);WOS:【SCI-EXPANDED(收录号:WOS:001183579300001)】；

基金： We gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (Grant No. 21271022) .

语种：英文

外文关键词：Schottky heterojunction; Photocatalytic h2 production; Noble metal-free; WC

摘要：Background: The study of efficient photocatalysts for photocatalytic H2 production has been a research hotspot. Methods: Here, we report a noble -metal -free WC/CdIn2S4 Schottky heterojunction photocatalyst for photocatalytic H2 production. The morphology results manifest that the CdIn2S4 nanoparticles are closely accumulated on the bulk WC. Photoluminescence and electrochemistry tests demonstrate that the carrier separation efficiency of WC/CdIn2S4 photocatalyst is vastly improved. WC cocatalyst provides sufficient H2 evolution active site and reduces H2 evolution overpotential for WC/CdIn2S4 composite. Significant findings: The optimal WC/CdIn2S4 composites have a H2 evolution activity of 220.6 mu mol g-1 h-1, which is around 1.3 times that of CIS/Pt. Besides, the mechanism of significantly increased photocatalytic H2 production for WC/CdIn2S4 composites is proposed and further discussed. This work not only proves that WC has great potential in photocatalytic H2 production, but also provides a strategy for constructing high -efficiency and noble -metal -free WC -based heterojunction photocatalysts for the enhancement of H2 evolution activity.