Metal-free diatomaceous carbon-based catalyst for ultrafast and anti-interference Fenton-like oxidation

作     者：Kexin Yin Jingren Yang Yanwei Li Qian Li Xing Xu 

作者机构：Shandong Key Laboratory of Water Pollution Control and Resource ReuseSchool of Environmental Science and EngineeringShandong University State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging ContaminantsShanghai Academy of Environmental Sciences Environment Research InstituteShandong University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报(英文版))

年 卷 期：2024年第35卷第12期

页      面：379-383页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by National Natural Science Foundation of China (No.52170086) Shandong Provincial Excellent Youth(No.ZR2022YQ47) 

主　　题：Peroxymonosulfate Diatomite Si-O doping Fenton-like reaction Electron transfer process (ETP) 

摘      要：Herein,a diatomite biomorphic Si-O doped carbon-based catalyst （DB-SiOC） was prepared using natura mineral diatomite as the silicon source and porous *** results showed that the metal-free DB SiOC catalyst exhibited ultrafast oxidation towards chlorophenol （CP） via peroxymonosulfate （PMS） activa tion,which was almost one order of magnitudes than most of carbon-based *** DB-SiOC/PMS system also showed the high ability to resist the interference of environmental *** radicals (·OH and SO4·–) exhibited a very small contribution to the CP oxidation while the electron transfer processe（ETP） played the major role in the DB-SiOC/PMS *** electron shuttles from the electron-donating CP molecules to the adjacent DB-SiOC/PMS*could be efficiently triggered via Si-O bonds as bridges,mak ing it possible for ultrafast oxidation of *** addition,the hollow-disc shaped DB-Si OC provided the biomorphic DE structures with abundant pores for enriching the PMS and pollutants,thus further ac celerating the oxidation *** work provided a new routine for the fabrication of Si-O doped carbon-based catalysts with excellent Fenton-like catalytic activity,which would greatly promote thei application prospects in Fenton-like systems.