Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India.
Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India.
Chemosphere. 2023 Jan;310:136853. doi: 10.1016/j.chemosphere.2022.136853. Epub 2022 Oct 12.
Nitrophenols are the most widely used raw materials in the chemical, pesticide, and pharmaceutical industries. Due to improper waste management and excessive usage, nitrophenol is listed as a priority pollutant and garnered global research attention. This review highlights the recent progress on heterojunction photocatalysts toward eliminating nitrophenols. The detailed mechanisms of the electron-hole pair separation using different heterojunctions such as traditional, p-n, Z-scheme, S-scheme, and Schottky heterojunctions are elaborated. The performance of the photocatalysts is evaluated using quantum efficiency. Among the heterojunctions, Z-scheme exhibited maximum removal efficiency of 100% and found superior over other heterojunctions. Even though heterojunctions exhibit good efficiency, the reusability of the heterojunction photocatalyst is not reported beyond 5 cycles. Further research is indeed to develop a highly reusable photocatalyst for environmental remediation.
硝基酚是化学、农药和制药工业中使用最广泛的原材料。由于废物管理不当和过度使用，硝基酚被列为优先污染物，引起了全球的研究关注。本综述重点介绍了用于消除硝基酚的异质结光催化剂的最新进展。详细阐述了不同异质结（如传统 p-n、Z 型、S 型和肖特基异质结）中电子-空穴对分离的详细机制。使用量子效率评估了光催化剂的性能。在这些异质结中，Z 型表现出 100%的最大去除效率，优于其他异质结。尽管异质结表现出良好的效率，但在 5 次循环以上，没有报道异质结光催化剂的可重复使用性。确实需要进一步研究来开发用于环境修复的高可重复使用的光催化剂。
