Enhanced photocatalytic activity of g-C3N4/Bi2WO6 heterojunction via Z-scheme charge-transfer mechanism
文献类型： 外文期刊
作者： Fengqiu Qin;Yangwen Xia;Daixiong Yang;Tian Xiao;Xiaodong Zhu;Wei Feng;Zhiyong Qi
作者机构：
关键词： Bi2WO6;g-C3N4;Photocatalytic activity;Z-scheme heterojunction
期刊名称： Journal of Molecular Structure
ISSN： 0022-2860
年卷期： 2024 年 1316 卷
页码：
收录情况： SCIE（2024版） ; ; EI（2024版）
摘要： In this study, g-C3N4/Bi2WO6 (CN/BWO) photocatalytic composite materials were prepared using a combination of calcination and solvothermal methods. The coiled sheet CN and the nanosheet BWO are coupled to form Z-scheme semiconductor junctions. For the close alignment between BWO conduction band (CB) and CN valence band (VB), photogenerated electrons originating from the BWO CB readily recombine with holes from the CN VB, which results in the accumulation of photogenerated holes in the BWO VB, exhibiting remarkable oxidation capability, and photogenerated electrons in the CN CB, displaying strong reducibility. This mechanism plays a pivotal role in the generation of ·O2– and ·OH radicals, optimizing the photocatalytic performance. As the atomic proportion of CN/BWO was 9:20, it exhibits a degradation degree of 90.2 % for rhodamine B (RhB) after 60 min illumination, significantly higher than pure BWO (44.0 %). Repetitive experiment results demonstrated the sample's good stability. Additionally, based on electrochemical tests and active species experiment results, the photocatalytic mechanism of the CN/BWO Z-scheme semiconductor structure involving photogenerated charge separation, migration, and photocatalysis was proposed.
分类号：
- 相关文献
作者其他论文 更多>>
-
Integrative Analysis of Transcriptome and Metabolome Reveals Molecular Mechanisms Underlying Hepatic Differences Between Zaozhuang Heigai Piglets and Duroc×Landrace×Yorkshire Piglets
作者：Caitong Wang;Jingxuan Li;Xueyan Zhao;Yanping Wang;Xiaodong Zhu;Fuping Zhao;Chuansheng Zhang;Liying Geng;Jiying Wang
关键词：arachidonic acid metabolism;Duroc Landrace Yorkshire pig;liver;metabolome;transcriptome;Zaozhuang Heigai pig
-
Classification of different gluten wheat varieties based on hyperspectral preprocessing, feature screening, and machine learning
作者：Xinghui Qi;Shaohua Zhang;Liyang Wang;Xuexu Hu;Haiyan Zhang;Wei Feng;Chenyang Wang;Tiancai Guo;Li He
关键词：Feature selection;Gluten type;Machine learning;Preprocessing;Wheat
-
Interfacial modification of BiVO4 photocatalyst: Construction of heterojunction with AgI
作者：Yuanyuan Zhong;Shengli Chen;Tian Xiao;Xiaodong Zhu;Wei Feng;Zhiyong Qi
关键词：AgI;BiVO4;Photocatalytic performance;Z-scheme heterojunction
-
Research on the Modification Process of Jute Fiber as a Strengthening Material for the Structure of Solidification Substrate
作者：Ronglin Zhou;Wanlai Zhou;Qi Bai;Juncheng Liu;Zhiyong Qi
关键词：jute fiber;soilless culture;solidification substrate;three-dimensional greening
-
Construction of flower-like BiOI/Bi2O2CO3 p-n heterojunction for photocatalytic degradation of Congo Red dye
作者：Xiuping Zhang;Yuanyuan Zhong;Tian Xiao;Xiaodong Zhu;Yu Jiao;Qiang Yu;Zhiyong Qi
关键词：Bi2O2CO3;BiOI;p-n heterojunction;Photocatalytic performance
-
Simulation of Urban Thermal Environment Based on Urban Weather Generator: Narrative Review
作者：Long He;Xiao Wei Geng;Hong Yuan Huo;Yi Lian;Qianrui Xi;Wei Feng;Min Cheng Tu;Pei Leng
关键词：urban heat island;urban weather generator;USTE
-
Spent Coffee Ground and Its Derivatives as Soil Amendments—Impact on Soil Health and Plant Production
作者：Yi Hu;Juan Li;Yiping Wu;Dongdong Zhang;Zhiyong Qi;Rui Yang
关键词：biocontrol;biofertilizer;compost;thermochemical conversion;vermicsompost