Abstract Inspired by the structure of natural leaves in the process of photosynthesis, in this work, artificial leaf BiVO4/InVO4 heterojunction was synthesized by one-step dipping-calcination method, using Chongyang wood seedling as template, and the molar ratio of BiVO4 to InVO4 was optimized. The unique leaf-liked structure of artificial leaf BiVO4/InVO4 was observed by FESEM observations. The photocatalytic activities of artificial leaf BiVO4/InVO4 were evaluated by the degradation of RhB. The results showed that the as-fabricated artificial leaf BiVO4/InVO4 heterojunction with appropriate In, Bi ratio has higher photocatalytic activity than artificial leaf BiVO4 and artificial leaf InVO4. Furthermore, the possible photocatalytic mechanism of artificial leaf BiVO4/InVO4 heterojunction was proposed. This strategy realizes the combination of bionic structure design and heterojunction construction, which enlightens people for the design of highly efficient photocatalytic materials.

中文翻译：

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具有增强光催化活性的人造叶 BiVO4/InVO4 异质结的叶启发结构设计用于污染物降解

摘要 受天然叶片在光合作用过程中的结构启发，本工作以重阳木幼苗为模板，通过一步浸渍-煅烧法合成了人造叶片BiVO4/InVO4异质结，BiVO4与InVO4的摩尔比进行了优化。通过FESEM观察观察到人工叶BiVO4/InVO4独特的叶状结构。通过降解RhB来评价人工叶片BiVO4/InVO4的光催化活性。结果表明，具有适当In、Bi比例的人造叶片BiVO4/InVO4异质结比人造叶片BiVO4和人造叶片InVO4具有更高的光催化活性。此外，提出了人工叶片BiVO4/InVO4异质结可能的光催化机理。