Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran.
Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran; Department of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
Ecotoxicol Environ Saf. 2024 Jan 1;269:115927. doi: 10.1016/j.ecoenv.2024.115927. Epub 2024 Jan 4.
The greenest environmental remediation way is the photocatalytic degradation of organic pollutants. However, limited photocatalytic applications are due to poor sunlight absorption and photogenerated charge carriers' recombination. These limitations can be overcome by introducing anion vacancy (AV) (O, S, N, C, and Halogen) defects in semiconductors that enhance light harvesting, facilitate charge separation, modulate electronic structure, and produce reactive radicals. In continuing part A of this review, in this part, we summarized the recent AVs' research, including S, N, C, and halogen vacancies on the boosted photocatalytic features of semiconductor materials, like metal oxides/sulfides, oxyhalides, and nitrides in detail. Also, we outline the recently developed AV designs for the photocatalytic degradation of organic pollutants. The AV creating and analysis methods and the recent photocatalytic applications and mechanisms of AV-mediated photocatalysts are reviewed. AV engineering photocatalysts' challenges and development prospects are illustrated to get a promising research direction.
最环保的环境修复方法是光催化降解有机污染物。然而，由于太阳光吸收和光生载流子复合较差，光催化的应用受到限制。通过在半导体中引入阴离子空位（O、S、N、C 和卤素）缺陷，可以克服这些限制，从而增强光捕获、促进电荷分离、调节电子结构并产生活性自由基。在本综述的续篇 A 部分，我们详细总结了最近关于 S、N、C 和卤素空位的研究，包括金属氧化物/硫化物、氧卤化物和氮化物等半导体材料的光催化特性增强。此外，我们还概述了最近用于光催化降解有机污染物的空位设计。综述了空位的形成和分析方法，以及最近的光催化应用和空位介导光催化剂的作用机制。说明了空位工程光催化剂的挑战和发展前景，以获得有前途的研究方向。
