光催化
异质结
光降解
材料科学
煅烧
X射线光电子能谱
水溶液
化学工程
可见光谱
降级(电信)
静电纺丝
光化学
纳米技术
催化作用
光电子学
化学
复合材料
聚合物
计算机科学
有机化学
工程类
电信
作者
Weichen Ding,Xiang Lin,Guohong Ma,Qifang Lu
标识
DOI:10.1016/j.jece.2020.104588
摘要
As the potential candidates for photodegradating pharmaceutical pollutants, the highly efficient, stable and recyclable Z-scheme photocatalysts, that are superior to the widely studied heterojunction photocatalysts, are very fascinating yet challenging. Herein, hollow structured InVO4/CeVO4 nanobelts with large heterogeneous interface and huge internal cavity are well-designed and prepared through an efficient electrospinning-calcination route. Owing to a large surface-to-bulk ratio, when used as visible-light photocatalytic materials for photochemical decomposition of the residual tetracycline (TC) aqueous solution, these InVO4/CeVO4 hollow nanobelts with porous structure and nanocrystal subunits exhibit excellent photocatalytic activity and very high stability, compared with pristine CeVO4 and InVO4 nanobelts. A possible Z-scheme reaction mechanism for the enhanced photocatalytic performance is tentatively proposed by PL, active species trapping experiments, XPS and EPR analysis, as well as calculated work functions of different crystal faces. This work underlines the importance of heterojunction construction, and presents a feasible protocol for the rational design of active photocatalysts under solar light for the photodegradation of environmental pollutants or for environmental purification.
科研通智能强力驱动
Strongly Powered by AbleSci AI