Abstract

Organic pollutants are widespread around our daily life that has brought serious environmental and health issues. Search for an effective technology to completely remove and ideally decompose organic pollutant is the main task for the scientists. There has been growing interest on the photocatalysis for degradation of organic pollutants in recent years, however, the fast recombination between the electrons and holes and the limited absorption in the visible-light range restrict its wide use. Nonlinear optical (NLO) materials with built in electric field are now proved to be a favorable approach for the new candidates and open a new chapter in the photocatalysis field. In this review, we described the fundamentals of NLO materials in the application of the photocatalysis field. The role of the built in electric field improved the charges separation was detailed explained, and next we introduced some classical NLO materials applied in the field of environmental containing the BaTiO₃, SrTiO₃, and the LiNbO₃. In particular, we focused on the recent progress of mixed borate-based polar photocatalyst for the degradation of organic pollutants in our lab. We hope this review will offer a full understanding of borate-based NLO photocatalyst and facilitate the design of new photocatalytic materials for organic pollutant degradation.

摘要

有机污染物广泛存在于我们的日常生活中，带来了严重的环境和健康问题。寻找一种有效的技术来彻底去除和理想分解有机污染物是科学家们的主要任务。近年来，光催化降解有机污染物引起了越来越多的关注，但电子和空穴之间的快速复合以及在可见光范围内的有限吸收限制了其广泛应用。具有内置电场的非线性光学（NLO）材料现在被证明是新候选材料的有利方法，并开启了光催化领域的新篇章。在这篇综述中，我们描述了 NLO 材料在光催化领域的应用基础。₃、SrTiO ₃和LiNbO ₃。特别是，我们重点介绍了混合硼酸盐极性光催化剂在我们实验室降解有机污染物方面的最新进展。我们希望这篇综述能够全面了解基于硼酸盐的 NLO 光催化剂，并有助于设计用于降解有机污染物的新型光催化材料。