Zhang Xu, Yang Ping, Yang Bo, Bai Yang, Liu Weihua, Zhang Yi
School of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
Sichuan Province Academy of Industrial Environmental Monitoring, Chengdu 610045, China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2021 Feb 15;247:119029. doi: 10.1016/j.saa.2020.119029. Epub 2020 Oct 4.
A series of Ag/AgX (X = Cl, Br, I; X = Cl, Br, or X = Cl, I, or X = Br, I; X = Cl, Br, and I) composite photocatalysts were synthesized via a facile photoreduction. The several characterization methods of X-ray diffraction (XRD), energy dispersive X-ray spectrometry (EDS) mapping and X-ray photoelectron spectroscopy (XPS) were characterized the samples. Through evaluation the photocatalytic activity of degradation rhodamine, methyl orange, and phenol, Ag-AgClBrI exhibited the superior selective photocatalytic activities than other photocatalysts. The reason for improved photocatalytic property of Ag-AgClBrI was attributed to the multifarious halogen atoms with the synergistic effect and the surface plasmon resonance (SPR) effect of Ag. Furthermore, the recycle experiments were conducted to reveal the stability and reusability, the trapping experiments confirmed the active species of Ag-AgClBrI.
通过简便的光还原法合成了一系列Ag/AgX（X = Cl、Br、I；X = Cl、Br，或X = Cl、I，或X = Br、I；X = Cl、Br和I）复合光催化剂。采用X射线衍射（XRD）、能量色散X射线能谱（EDS）映射和X射线光电子能谱（XPS）等多种表征方法对样品进行了表征。通过评估降解罗丹明、甲基橙和苯酚的光催化活性，Ag-AgClBrI表现出比其他光催化剂更优异的选择性光催化活性。Ag-AgClBrI光催化性能提高的原因归因于多种卤素原子的协同效应以及Ag的表面等离子体共振（SPR）效应。此外，进行了循环实验以揭示其稳定性和可重复使用性，捕获实验确定了Ag-AgClBrI的活性物种。
