使用二氧化钛基光催化光降解有害有机污染物：综述,Environmental Research

基于二氧化钛的光催化剂 (TOBP) 已被广泛用作许多应用的潜在材料，例如废水处理、水分解反应、二氧化碳 (CO 2 ) 还原和光合作用。然而，本征TiO 2的大带隙限制了它们对可见光的吸收，可见光是太阳光谱的中心部分，导致在阳光下的光催化活性低。为了克服这个障碍，一些策略，例如掺杂金属或非金属元素或与其他化合物结合，是降低 TiO 2带隙的有效方法，从而有效地将它们的吸收扩展到可见区域并提高它们的催化性能。在这篇综述中，我们讨论了 TOBP 在光降解废水中有害有机污染物以生产优质回用水方面的应用。二氧化钛的合成并提供了通过不同技术增强 TOBPs 光催​​化活性的详细信息。已经列出了 TOBP 在最佳条件下分解染料、酚类化合物和药物等有害有机污染物的应用。此外，还研究了有害有机化合物的光降解机制。这项工作也为未来的前景和研究计划提出了想法，以抑制缺点并扩大 TOBPs 在去除有毒有机污染物方面的应用。

"点击查看英文标题和摘要"

Titanium oxide-based photocatalysts (TOBPs) have been widely utilized as potential materials for numerous applications, such as wastewater treatment, water-splitting reactions, carbon dioxide (CO2) reduction and photosynthesis. However, the large bandgap of intrinsic TiO2 limits their absorption toward visible light, which is the central part of the solar spectrum, resulting in low photocatalytic activities under sunlight. To overcome this obstacle, several strategies, such as doping with either metal or non-metal elements or combining with other compounds, are efficient ways to reduce the bandgap of TiO2, leading to effectively extending their absorption toward the visible region and increasing their catalytic performance. In this review, we discussed the application of TOBPs for the photodegradation of hazardous organic pollutants in wastewater to produce quality reused water. The synthesis of TiO2 and the enhancement of photocatalytic activities of TOBPs by different techniques with detailed information were provided. Application of TOBPs for decomposing hazardous organic pollutants such as dyes, phenolic compounds and pharmaceuticals under optimum conditions have been listed. Also, the photodegradation mechanisms of hazardous organic compounds have been investigated. This work also brings ideas for future perspectives and research plan to inhibit the disadvantages and expand the application of TOBPs to remove toxic organic pollutants.