Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, P. R. China.
Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, P. R. China.
Inorg Chem. 2023 May 8;62(18):7111-7122. doi: 10.1021/acs.inorgchem.3c00825. Epub 2023 Apr 26.
In this study, Mo-glycerate was used as a precursor to create MoS hollow nanospheres (HNS), which were then used for the first time to modify ZnInS nanosheets to create MoS HNS/ZnInS photocatalysts. The findings demonstrate that MoS HNS/ZnInS heterojunctions exhibited remarkably boosted photocatalytic properties and excellent reusability for both RhB degradation and H evolution without the use of Pt as a co-catalyst. Among the heterojunctions, the RhB degradation and H evolution efficiencies of the optimized MoS HNS/ZnInS-3 wt % composite were almost 5 and 34 times higher than those of ZnInS, respectively. The excellent performance of MoS HNS/ZnInS-3 wt % might be attributed to the expansion of the visible-light response range and the accelerated separation efficiency of photo-induced carriers, according to the findings of the optical property tests. Based on the established band gap position and characterization results, a potential mechanism for appealing photocatalytic activity over MoS HNS/ZnInS heterojunctions was also postulated.
在这项研究中，我们使用钼甘油作为前体来制备 MoS 空心纳米球（HNS），这是首次将其用于修饰 ZnInS 纳米片来制备 MoS HNS/ZnInS 光催化剂。研究结果表明，MoS HNS/ZnInS 异质结表现出显著增强的光催化性能和出色的可重复使用性，可用于 RhB 降解和 H2 演化，而无需使用 Pt 作为共催化剂。在这些异质结中，优化后的 MoS HNS/ZnInS-3wt%复合材料的 RhB 降解和 H2 演化效率分别比 ZnInS 高约 5 倍和 34 倍。根据光学性质测试的结果，MoS HNS/ZnInS-3wt%的优异性能可能归因于可见光响应范围的扩大和光生载流子分离效率的提高。基于建立的能带位置和表征结果，还提出了 MoS HNS/ZnInS 异质结具有吸引力的光催化活性的潜在机制。
