过硫酸盐
催化作用
化学
煅烧
钙钛矿(结构)
浸出(土壤学)
无机化学
降级(电信)
金属
有机化学
环境科学
计算机科学
电信
土壤科学
土壤水分
作者
Donatos Manos,Frederica Papadopoulou,Antigoni Margellou,Dimitrios Petrakis,Ioannis Konstantinou
出处
期刊:Catalysts
[MDPI AG]
日期:2022-02-02
卷期号:12 (2): 187-187
被引量:20
标识
DOI:10.3390/catal12020187
摘要
Sulfate radical-based advanced oxidation processes (SR-AOPs) are lately applied for the degradation of various pollutants through the formation of reactive oxidant species (ROS) from activation of oxidants, such as persulfate (PS) or peroxymonosulfate (PMS). In this study, LaMO3 (M=Co, Fe, Cu, Mn, Ni) perovskite catalysts were synthesized, characterized by several techniques, and tested for the activation of persulfate towards the degradation of phenolic pollutants. The effect of substitution of position B of La-based perovskites as well as calcination temperature was studied. Overall, the results showed that the decisive role in the catalytic activity was the presence of structures that enhance the transfer of electrons between perovskite and oxidant. LaNiO3 followed by LaCoO3 were found as the most active catalysts. Finally, the stability of the catalysts was studied, showing that B-metal leaching is significant for both catalysts, with LaCoO3 being the most stable one.
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