Selective oxidation of emerging organic contaminants in heterogeneous Fenton-like systems  

作　　者：Sheng Wang Yuxin Lu Shangkun Pei Xiang Li Bo Wang 

机构地区：[1]Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technologies Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China

出　　处：《Nano Research》2024年第11期9300-9325,共26页纳米研究（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21625102,21971017,and 21906007);the National Key Research and Development Program of China(No.2020YFB1506300);the Beijing Institute of Technology Research Fund Program.

摘　　要：Heterogeneous Fenton-like reaction shows great potential for eliminating organic substances (e.g. emerging organic contaminants (EOCs)) in water, which has been widely explored in recent decades. However, the catalytic mechanisms reported in current studies are extremely complicated because multiple mechanisms coexist and contribute to the removal efficiencies. Most importantly, heterogeneous systems show selective oxidation properties, which are crucial for improving the efficiencies in the catalytic elimination of organic substances. Thus, this critical review summarizes and compares the diverse existing mechanisms (non-radical and radical pathways) in heterogeneous catalytic processes based on recent studies. The typical oxidation mechanisms during selective advanced oxidation of EOCs were systematically discussed based on the following sections, including the selective adsorption and generation of reactive oxygen species (ROS) in photo/electron-Fenton and Fenton-like systems. Moreover, the non-radical pathways are discussed in depth by the singlet oxygen, high-valent metal-oxo, electron transfer process, etc. Moreover, the direct oxidative transfer process for the removal of EOCs was introduced in recent studies. Finally, the cost, feasibility as well as the sustainability of heterogeneous Fenton-like catalysts are summarized. This review offers useful guidance for developing suitable strategies to develop materials for decomposing the organic substrates.

关 键 词：emerging organic contaminants heterogeneous advanced oxidation process heterogeneous activators SELECTIVITY 

分 类 号：O64[理学—物理化学]