Wu Yadong, Luo Ni, Xie Ruishi
School of Big Data, School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, P. R. China.
School of Materials Science and Engineering, Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
ACS Omega. 2020 Sep 4;5(38):24318-24328. doi: 10.1021/acsomega.0c02541. eCollection 2020 Sep 29.
Fabricating nanostructures and doping engineering are beneficial to tailor the photocatalytic activity of semiconductor materials, and the semiconducting photocatalysis is deemed to be one of the potential protocols to handle the environmental pollution and energy crisis issues. Herein, rodlike Cd-doped ZnWO Zn Cd WO nanoarchitectures were triumphantly prepared by a template-free strategy. The crystal structure, chemical state, optical, and photocatalytic features of the Zn Cd WO nanoarchitectures were studied using a variety of characterizations. The Zn Cd WO nanoarchitectures exhibit glorious photocatalytic performance compared with pristine ZnWO for the degradation of methyl orange in sewage. Mechanistic studies were executed for getting insights into the photocatalytic degradation process, and the remarkable photocatalytic property of the doped ZnWO nanoarchitectures is attributed to the boosted optical absorptive efficiency and the valid segregation and transmission of photogenerated charge carriers deriving from doping effects. The doped nanoarchitectures of this work have promising applications in the territories such as environment and energy chemistry, and the insight proposed in this work will contribute to develop other functionalized nanoarchitectures.
制备纳米结构和掺杂工程有利于调整半导体材料的光催化活性,半导体光催化被认为是解决环境污染和能源危机问题的潜在方案之一。在此,通过无模板策略成功制备了棒状Cd掺杂的ZnCdWO纳米结构。使用多种表征手段研究了ZnCdWO纳米结构的晶体结构、化学状态、光学和光催化特性。与原始ZnWO相比,ZnCdWO纳米结构在污水中降解甲基橙表现出优异的光催化性能。进行了机理研究以深入了解光催化降解过程,掺杂的ZnWO纳米结构卓越的光催化性能归因于提高的光吸收效率以及掺杂效应导致的光生电荷载流子的有效分离和传输。这项工作中的掺杂纳米结构在环境和能源化学等领域具有广阔的应用前景,并且这项工作中提出的见解将有助于开发其他功能化纳米结构。