净化甲醛纳米催化剂的固载及改性研究进展

Progress of Immobilization and Modification of Nanocatalysts for Formaldehyde Decomposition

室内甲醛污染物对健康的危害在近年引起越来越多的关注,如何有效去除室内甲醛已经成为污染治理的重要研究课题。本文综述了净化甲醛纳米催化剂的固载和改性研究进展,系统介绍了应用于净化甲醛纳米催化剂的固体载体种类及特点,并介绍了近年来纳米氧化物催化剂的改性研究。将净化甲醛纳米催化剂的固定化和改性相结合,发挥两者的协同效应可以很大程度提高低温甲醛催化效率。目前,寻找合适的载体、探索有效的催化剂改性方法以提高催化剂的催化效率是实现甲醛催化技术实际应用的关键。最后展望了未来甲醛催化降解技术的研究方向。

The harmful effects of indoor formaldehyde on human health have been attracting more and more attention in recent years. One of important research topics of environmental management is how to effectively eliminate indoor formaldehyde. This paper reviewed the research progress in immobilization and modification of nanocatalysts for formaldehyde decomposition. The classification and characteristics of catalyst supporters were systematically introduced. Recent advances in catalyst modification by doping were summarized. Immobilization and modification of nanocatalysts can give synergistic effects and greatly improve the catalytic efficiency for formaldehyde decomposition at low temperature. The key to realizing practical applications of formaldehyde catalytic decomposition technology is to find suitable supporters, search effective modification and increase its catalytic efficiency. A prospect of nanocatalysts for formaldehyde decomposition is proposed.