Background

The solid mediator Z-scheme heterojunctions are promising photocatalysts that have narrow band gaps to allow excitation of incorporated electrons under visible lights but with sufficient separation of the yielded electron hole-pairs and without suffering the reduction of their oxidization and reduction powers. Successful synthesis of mediator Z-scheme heterojunction acquires production of constituent semiconductors with desired Fermi levels and close contacts of the semiconductors with sandwiched metal mediator.

Methods

This mini-review discussed briefly the principles of photocatalyst and heterojunction photocatalysts, and then the current research and development studies on the way to design and synthesis of Z-scheme heterojunction were summarized.

Significant findings

Based on literature results, the perspectives to design and synthesis of a solid mediator Z-scheme for degrading specific pollutant were discussed and outlined. An illustrative example of design and synthesis of a novel Z-scheme photocatalyst, CuFe₂O₄/Cu/UiO66-NH₂, with demonstration of its photodegradation performance of dye rhodamine 6 G, was presented at the end of the review.

中文翻译：

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固体介体Z型异质结光催化水中污染物氧化：原理及合成前景

背景

固体介体 Z 型异质结是有前途的光催化剂，具有窄带隙，允许在可见光下激发掺入的电子，但产生的电子空穴对充分分离，并且不会降低其氧化和还原能力。介体 Z 型异质结的成功合成获得了具有所需费米能级的组成半导体的生产以及半导体与夹层金属介体的紧密接触。

方法

本综述简要讨论了光催化剂和异质结光催化剂的原理，然后总结了目前Z型异质结设计合成方法的研究和发展研究。

重要发现

基于文献结果，讨论和概述了设计和合成用于降解特定污染物的固体介质 Z 方案的观点。综述的最后介绍了一个设计和合成新型 Z 型光催化剂CuFe ₂ O ₄ /Cu/UiO66-NH _{2 的}示例，展示了其对染料罗丹明 6 G 的光降解性能。