构建用于增强光催化 CO 还原的 InO/BiS Z 型异质结
Construction of an InO/BiS Z-Scheme Heterojunction for Enhanced Photocatalytic CO Reduction.
作者信息
Sun Miaofei, Fan Kai, Liu Chengyin, Gui Tian, Dai Chunhui, Jia Yushuai, Liu Xin, Zeng Chao
机构信息
State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
School of Environmental and Material Engineering, Yantai University, Yantai 264005, Shandong, China.
出版信息
Langmuir. 2024 Jun 18;40(24):12681-12688. doi: 10.1021/acs.langmuir.4c01195. Epub 2024 Jun 5.
Photocatalytic conversion of CO to hydrocarbon fuel is a potential strategy to solve energy shortage and mitigate the greenhouse effect. Here, direct Z-scheme heterojunction photocatalysts (InO/BiS) without an electron mediator are prepared by a simple hydrolysis method. The InO/BiS composite photocatalysts show greatly boosted photoactivity on CO conversion to CO compared with the pristine InO and BiS. The highest CO evolution rate of 2.67 μmol·g·h is achieved by InO/BiS-3, without any sacrificial agent or cocatalyst, which is about 3.87 times that of InO (0.69 μmol·g·h). The boosted photocatalytic performance of InO/BiS composite catalysts can be ascribed to the establishment of a Z-scheme heterojunction, improving the photoabsorption and facilitating charge separation and transfer. This study provides a reference for designing and fabricating high-efficiency Z-scheme heterojunction photocatalysts for photocatalytic CO reduction.
将一氧化碳光催化转化为碳氢燃料是解决能源短缺和缓解温室效应的一种潜在策略。在此，通过简单的水解方法制备了无电子介质的直接Z型异质结光催化剂（InO/BiS）。与原始的InO和BiS相比，InO/BiS复合光催化剂在将一氧化碳转化为一氧化碳方面表现出大大提高的光活性。InO/BiS-3在没有任何牺牲剂或助催化剂的情况下实现了2.67 μmol·g⁻¹·h的最高一氧化碳析出速率，约为InO（0.69 μmol·g⁻¹·h）的3.87倍。InO/BiS复合催化剂光催化性能的提高可归因于Z型异质结的建立，改善了光吸收并促进了电荷分离和转移。该研究为设计和制备用于光催化一氧化碳还原的高效Z型异质结光催化剂提供了参考。
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