降级(电信)
催化作用
邻苯二甲酸二甲酯
钴
邻苯二甲酸盐
化学
污染物
硫酸盐
羟基自由基
光化学
核化学
激进的
无机化学
有机化学
计算机科学
电信
作者
Yanhao Wang,Yunlong Sun,Ruyun Wang,Mengchun Gao,Yanjun Xin,Guangshan Zhang,Peng Xu,Dong Ma
标识
DOI:10.1016/j.jhazmat.2023.130901
摘要
The sulfate radical-based advanced oxidation processes (SR-AOPs) offer huge potential for the removal of organic pollutants. In this study, Co(II)-intercalated δ-MnO2 (Co-δ-MnO2) catalyst was successfully prepared by a simple cation exchange reaction. The obtained Co-δ-MnO2 exhibited high catalytic performance for the removal of dimethyl phthalate (DMP) under the activation of peroxymonosulfate (PMS), with the degradation efficiency reaching 100% within 6 h. Experiments and theoretical calculations revealed that interlayer Co(II) provided unique active sites in Co-δ-MnO2. In addition, radical and non-radical pathways were confirmed to play a role in Co-δ-MnO2/PMS system. •OH, SO4• ̶, and 1O2 were identified to be the dominating reactive species in Co-δ-MnO2/PMS system. This study provided new insights into the design of catalysts and laid a foundation for developing modifiable layered heterogeneous catalysts.
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