School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
J Environ Sci (China). 2023 Dec;134:21-33. doi: 10.1016/j.jes.2022.03.014. Epub 2022 Mar 18.
The construction of heterophase junctions by rutile-anatase TiO is considered an effective strategy for toluene degradation, but the photogenerated electron utilization is still insufficient. In this study, the formation of type-II heterojunction by the encapsulation of Materials of Institut Lavoisier (MIL-101) by anatase is performed, and then the heterophase junction is further constructed to improve the catalytic performance of the photocatalyst. The enhancement of photocatalytic performance depends on the encapsulation of MIL-101 by anatase, the light absorption capacity of anatase, and the contact area of two heterojunctions. Photogenerated electrons are transferred to oxygen vacancies of anatase and promoting the generation of oxygen-containing radicals. The material certifies the synergistic effect of the heterophase junction and heterojunction design and provides a theoretical basis for application in the degradation of volatile organic compounds.
锐钛矿相二氧化钛构建异质结被认为是甲苯降解的有效策略，但光生电子的利用仍然不足。本研究通过锐钛矿将相变材料 Institut Lavoisier（MIL-101）封装，形成 II 型异质结，进一步构建异质结以提高光催化剂的催化性能。光催化性能的提高取决于锐钛矿对 MIL-101 的封装、锐钛矿的光吸收能力和两个异质结的接触面积。光生电子转移到锐钛矿的氧空位，并促进含氧自由基的生成。该材料证明了异质结和异质结设计的协同效应，为其在挥发性有机化合物降解中的应用提供了理论依据。
