Construction of Carbon Dot-Modified g-C3N4/BiOIO3 Z-Scheme Heterojunction for Boosting Photocatalytic CO2 Reduction under Full Spectrum Light,ACS Sustainable Chemistry & Engineering

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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

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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 g_cat^–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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