锰基催化剂协同等离子降解VOCs研究进展

doi:10.16085/j.issn.1000-6613.2020-1111

摘要/Abstract

摘要：

等离子催化技术中，Mn基催化剂以其优异的催化降解VOCs和臭氧性能受到国内外研究者的广泛关注。本文从以下方面进行了综述：催化剂在等离子降解中的作用机理，包括改变放电状态、激发新的活性自由基、提供反应位点；常见的单金属及复合金属活性相类型；介绍了浸渍法、水热合成法、溶胶凝胶法和共沉淀法等主要制备方法；催化剂和等离子的协同方式；从统计角度分析文献报道中Mn基催化剂对甲苯的降解效率及抑制臭氧、NO_x的作用；最后对其研究前景进行了展望：Mn基催化剂将依然是该领域的研究热点；通过引入其他金属和非金属、增加活性相分散度、提升载体吸附性能等方法进一步提高催化剂活性和稳定性；利用原位技术探索等离子与活性相的作用机理。

关键词: 催化剂, 催化作用, 废物处理, 低温等离子体, 挥发性有机物

Abstract:

Manganese catalysts have excellent catalytic degradation of VOCs and ozone in the field of non-thermal plasma catalysis. In this review, a comprehensive discussion of this kind of catalysts is provided from the following aspects: the synergistic effects and catalytic mechanism of manganese catalysts in the non-thermal plasma catalysis system, including changing discharge behavior, producing new active species and providing reactive sites; the common kinds of active phases, such as single metal and multi-metal catalysts; the main preparation methods: impregnation method, hydrothermal synthesis, co-precipitation method, and sol-gel method; the combination form of plasma and catalysts; the effects of manganese catalyst and energy density on the plasma catalytic degradation of toluene based on statistical analysis, the reduction of by-products of ozone and NO_x; finally the perspective and future direction of manganese catalysts were proposed: manganese catalysts are still the hotspot in the field of non-thermal plasma catalysis; by the means of introducing other metal and non-metal elements, improving the dispersity of active phases, enhancing the adsorption of catalysts to further increase the catalytic activity and stability; investigating interaction mechanism between plasma and active sites of catalysts through in-situ detection technologies.

Key words: catalyst, catalysis, waste treatment, non-thermal plasma, volatile organic compounds

中图分类号:

X511

赵亚飞, 叶凯, 庄烨, 郑进保. 锰基催化剂协同等离子降解VOCs研究进展[J]. 化工进展, 2020, 39(S2): 175-184.

Yafei ZHAO, Kai YE, Ye ZHUANG, Jinbao ZHENG. Progress of manganese catalysts for non-thermal plasma catalysis on VOCs degradation[J]. Chemical Industry and Engineering Progress, 2020, 39(S2): 175-184.

图/表 1

参考文献 38

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