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Construction of Carbon Dot-Modified g-C3N4/BiOIO3 Z-Scheme Heterojunction for Boosting Photocatalytic CO2 Reduction under Full Spectrum Light
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2022-08-16 , DOI: 10.1021/acssuschemeng.2c02042
Xing Hu 1 , Rui-tang Guo 1 , Zhi-dong Lin 1 , Zhe-xu Bi 1 , Xin Chen 1 , Juan Wang 1 , Wei-guo Pan 1
Affiliation  

In this study, we successfully constructed a Z-scheme BiOIO3/CQDs/g-C3N4 (BCCN) composite modified with carbon quantum dots (CQDs) for photocatalytic CO2 reduction. A series of characterization approaches and testing technologies were carried out to investigate the components, morphologies, and optical properties of the fabricated photocatalysts. The 0.015B0.01CCN displayed an efficient photocatalytic CO2 reduction activity within 7 h full spectrum light irradiation, producing CO with a rate of 117.88 μmol gcat–1. The enhanced photocatalytic CO2 reduction of the BCCN composite can be attributed to the synergistic effects of CQDs and the Z-scheme heterojunction. This work presents a new insight into integrating CQDs with g-C3N4 and BiOIO3 for the positive synergetic effect to obtain a high-efficient photocatalyst.

中文翻译:

碳点修饰g-C3N4/BiOIO3 Z型异质结的构建促进全光谱光催化CO2还原

在本研究中,我们成功构建了一种用碳量子点(CQDs)修饰的Z型BiOIO 3 /CQDs/gC 3 N 4(BCCN)复合材料,用于光催化CO 2还原。进行了一系列表征方法和测试技术来研究制备的光催化剂的成分、形貌和光学性质。0.015B0.01CCN在全光谱光照射7 h 内表现出高效的光催化CO 2还原活性,产生CO 的速率为117.88 μmol g cat –1。增强型光催化CO 2BCCN 复合材料的减少可归因于 CQD 和 Z 型异质结的协同作用。这项工作为将 CQDs 与 gC 3 N 4和 BiOIO 3集成以获得积极的协同效应以获得高效光催化剂提供了新的见解。
更新日期:2022-08-16
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