Nanjing XiaoZhuang University, Nanjing 211171, PR China.
Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, P. R. China.
ACS Appl Mater Interfaces. 2023 Jun 28;15(25):30199-30211. doi: 10.1021/acsami.3c04308. Epub 2023 Jun 13.
Facet engineering was realized to enhance the CO photoreduction performance of the NiP/ZnInS heterostructure, in which the commonly exposed (1 0 2) face of ZnInS was converted to the (1 0 1) face due to the unique properties of the phosphide. The variation in the crystal plane strengthened the intense interfacial contact between NiP and ZnInS, resulting in the promotion of utilization and absorption efficiency for incident light and boosting the surface reaction rate. Combined with the significant metallicity of NiP, inhibited recombination and strengthened transfer efficiency were achieved, leading to an obvious enhancement of photoreduction activity over NiP/ZnInS compared to pure samples. In particular, the optimal NZ7 composite (the mass ratio of NiP to ZnInS) reached 68.31 μmol h g of CH, 10.65 μmol h g of CHOH, and 11.15 μmol h g of HCOOH. The mechanism of the CO photoreduction process was elucidated using ESR and in situ DRIFTS techniques.
面工程被实现，以提高 NiP/ZnInS 异质结构的 CO 光还原性能，其中由于磷化物的独特性质，ZnInS 通常暴露的（102）面被转化为（101）面。晶面的变化增强了 NiP 和 ZnInS 之间强烈的界面接触，从而促进了入射光的利用和吸收效率，并提高了表面反应速率。结合 NiP 的显著金属性，实现了抑制重组和增强转移效率，导致与纯样品相比，NiP/ZnInS 的光还原活性明显增强。特别是，最佳 NZ7 复合材料（NiP 与 ZnInS 的质量比）达到 68.31 μmol h g 的 CH、10.65 μmol h g 的 CHOH 和 11.15 μmol h g 的 HCOOH。使用 ESR 和原位 DRIFTS 技术阐明了 CO 光还原过程的机理。
