Pt/TiO₂催化剂催化氧化VOCs性能研究综述

A Review of the Performance of Pt/TiO₂ Catalysts for Catalytic Oxidation of VOCs

挥发性有机化合物(VOCs)的绿色处理技术一直以来都是人们关注的重点,Pt/TiO2催化剂由于其优异的催化性能成为应用最广泛的催化剂之一。但随着工业的快速发展,人们对催化剂催化氧化VOCs的性能提出了更高的要求。本文分析总结了近年来对Pt/TiO2催化剂进行改进的部分方法,包括使用不同形貌和晶型的TiO2作载体、对TiO2载体进行预处理、改变Pt的负载量和分散度、对催化剂掺杂改性等。最后发现这些改性方法均对催化剂催化氧化VOCs的效率、热稳定性、抗毒性等性能均有显著影响。受这些改性方法的启发,本文对Pt/TiO2催化剂未来绿色、环保的改性方法提出了新的可能。

The green treatment technology of volatile organic compounds (VOCs) has always been the focus of attention, and Pt/TiO2 catalysts have become one of the most widely used catalysts due to their excellent catalytic performance. However, with the rapid development of industry, people have put forward higher requirements for the performance of catalysts to catalyze the oxidation of VOCs. This paper analyzes and summarizes some methods for improving Pt/TiO2 catalysts in recent years, including the use of TiO2 supports with different morphologies and crystal forms, the pretreatment of TiO2 supports, the change of the loading and dispersion of Pt, and the overall doping modification of catalysts. Finally, it is found that these modification methods have an impact on the efficiency, thermal stability and toxicity resistance of catalysts in the catalytic oxidation of VOCs. Inspired by these modification methods, this paper proposes new possibilities for the future green and environmentally friendly modification methods of Pt/TiO2 catalysts.