化学
光催化
热液循环
复合数
化学工程
纳米颗粒
可见光谱
密度泛函理论
异质结
纳米技术
催化作用
有机化学
计算化学
光电子学
复合材料
材料科学
工程类
作者
Jie Xiong,Hong‐Yan Zeng,Jinfeng Peng,Sheng Xu,Di-Yang Peng,Zhuo-Lin Yang
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2022-07-14
卷期号:61 (29): 11387-11398
被引量:14
标识
DOI:10.1021/acs.inorgchem.2c01665
摘要
A novel three-dimensional (3D) network rodlike Ag2S/Bi2SiO5 photocatalyst with a p-n heterostructure composed of ultrafine Ag2S nanoparticles (NPs) and Bi2SiO5 nanosheets was prepared using an anionic self-regulation strategy by a two-step hydrothermal process. The architecture facilitated the efficient transfer and separation of photogenerated electron-hole pairs. The optimal Ag2S/Bi2SiO5 composite (ABSO0.10) exhibited an excellent reduction activity (93.5% Cr(VI) removal in wastewater containing 50 mg·L-1 Cr(VI) within 90 min under visible light), which was about 11.2 and 25.6 times higher than that of the pristine Ag2S and virgin Bi2SiO5, respectively. Assisted by experiments and density functional theory (DFT) calculations, a possible photocatalytic mechanism for Cr(VI) reduction over the Ag2S/Bi2SiO5 composite under visible-light irradiation was proposed.
科研通智能强力驱动
Strongly Powered by AbleSci AI