摘要
水中难降解有机污染物对环境安全和人类健康造成严重的威胁,作为高级氧化技术的一种,非均相催化臭氧氧化技术,被证明是降解有机污染物有效的处理技术。在非均相催化臭氧氧化技术中,多金属氧化物因其制备方法较为简便且多金属的复合促进氧化还原循环和电子传递,常被开发用于高效催化臭氧氧化的催化剂。综述了多金属氧化物,包括钙钛矿氧化物、尖晶石氧化物、天然矿石、羟基氧化物等多金属氧化物的制备方法、性质及作为催化剂在催化臭氧降解药物分子、染料、酚类、个人护理用品等多种有机污染物中的应用,总结多金属氧化物催化臭氧氧化有机污染物过程中的作用机理,为今后多金属氧化物的制备、应用及反应机理探究提供理论借鉴。
Refractory organic pollutants in water threaten both environmental safety and human health. As one of the advanced oxidation processes(AOPs),heterogeneous catalytic ozonation has been proved to be effective for degradation these pollutants. Due to the simple preparation method and the function with promoting the redox cycle and electron transfer by combination of multi metals,poly-metallic oxides are extensively employed as catalysts for heterogenous catalytic ozonation. The preparation methods and catalytic activities of poly-metallic oxides,including perovskite oxides,spinel oxides,natural minerals,oxyhydroxides and other metallic oxides composite were discussed,their applications for degradation of various organic contaminants,such as pharmaceuticals,dyes,phenolic compounds and personal care products were summarized. The corresponding catalytic ozonation mechanisms by utilizing these polymetallic oxides were analyzed,which provided theoretical foundation and strategies for preparation,application and catalytic mechanistic research of poly-metallic oxides.
作者
孔涛
任诺
陈春茂
王郁现
Kong Tao;Ren Nuo;Chen Chunmao;Wang Yuxian(State Key Laboratory of Petroleum Pollution Control,College of Chemical Engineering and Environment,China University of Petroleum-Beijing,Beijing 102249,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2021年第7期1-18,共18页
Industrial Water Treatment
基金
国家自然科学基金(21978324)
北京市自然科学基金(8192039)
中国石油大学(北京)校基金(2462020YXZZ034)。
关键词
多金属氧化物
非均相催化臭氧氧化
活性位点
反应机理
poly-metallic oxide
heterogenous catalytic ozonation
active sites
reaction mechanism
