催化作用
杂原子
化学
碳纤维
合理设计
降级(电信)
反应机理
水溶液
化学工程
组合化学
有机化学
纳米技术
材料科学
复合材料
工程类
复合数
电信
计算机科学
戒指(化学)
作者
Zilong Song,Jingyi Sun,Zhenbei Wang,Jun Ma,Yongze Liu,Francisco Javier Rivas,Fernando J. Beltrán,Wei Chu,Didier Robert,Zhonglin Chen,Bin Xu,Fei Qi,Jolanta Kumirska,Ewa Maria Siedlecka,Amir Ikhlaq
标识
DOI:10.1016/j.scitotenv.2022.155071
摘要
This review renewed insight into the existing complex and contradictory mechanisms of catalytic ozonation by two-dimensional layered carbon-based materials (2D-LCMs) for degradation toxic refractory organics in aqueous solution. Migration and capture of active electrons are central to catalytic ozonation reactions, which was not studied or reviewed more clearly. Based on this perspective, the catalytic ozonation potential of 2D-LCMs synthesized by numerous methods is firstly contrasted to guide the design of subsequent carbon based-catalysts, and not limited to 2D-LCMs. Matching ROS to active sites is a key step in understanding the catalytic mechanism. The structure-activity relationships between reported numerous active sites and ROS evolution is then constructed. Result showed that OH could be produced by -OH, -C=O, -COOH groups, defective sites, immobilized metal atoms, doped heteroatoms and photo-induced electrons; and O2- could be produced by -OH groups and sp2-bonded carbon. The normalized model further be used to visually compare the contribution degree of various regulatory methods to performance improvement. More importantly, this review calls for 2D-LCMs-based catalytic ozonation to be studied without circumventing the issue of structural stability, which would lead to many proposals of catalysts and its involved catalytic reaction mechanism being meaningless.
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