光催化
材料科学
异质结
纳米片
可见光谱
杂原子
兴奋剂
煅烧
制作
纳米技术
光电子学
催化作用
有机化学
化学
医学
病理
替代医学
戒指(化学)
作者
Guoliang Chu,Lingfang Qiu,Ke Wen,Ping Li,Banpeng Cao,Yi Tang,Xiangshu Chen,Hidetoshi Kita,Shuwang Duo
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2023-01-30
卷期号:34 (15): 155701-155701
被引量:3
标识
DOI:10.1088/1361-6528/acb1b6
摘要
Abstract 2D layered photocatalysts with proper electronic structure have sparked much attention in the field of visible-light photocatalysis for H 2 production. Herein, by simply calcining the mixture of ultrathin g-C 3 N 4 (CNN) and NaBH 4 , heteroatom B and N defect were simultaneously introduced into g-C 3 N 4 . The obtained modified g-C 3 N 4 (BDCNN) was further coupled with 2D flower-like CdS nanosheet. The optimal 2D/2D BDCNN/CdS-15% heterojunction behaved ideal photocatalytic activity for H 2 revolution by water splitting, and the highest H 2 revolution rate was as high as 1013.8 μ mol g −1 h −1 , which was 6.7 times, 2 times, and 5.8 times of the corresponding values of pristine CNN, BDCNN and CdS respectively. It was evidenced that the band structure of 2D/2D BDCNN/CdS-15% was well tuned for better visible-light adsorption and higher separation efficiency of photo-induced carriers for enhancing H 2 revolution performance. The achievement in this study provided informative principles for exploring g-C 3 N 4 based heterojunctions with higher H 2 -production performance.
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