Magnetic Fe_(3)O_(4)nanoparticles supported on carbonized corncob as heterogeneous Fenton catalyst for efficient degradation of methyl orange  

作　　者：Chen Chen Zeming Yan Zhuoli Ma Dianjie Ma Shijun Xing Wenping Li Jiazhi Yang Qiaofeng Han 

机构地区：[1]School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Chinese Journal of Chemical Engineering》2025年第1期144-155,共12页中国化学工程学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(51572124);Natural Science Foundation of China Jiangsu Province(BK20230940);the Fundamental Research Funds for the Central Universities(30920130121001);a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD,China);a project funded by Jiangsu Funding Program for Excellent Postdoctoral Talent.

摘　　要：The pollution especially organic dyes pollution of water resources is an urgent issue to be solved.It is crucial to develop highly efficient,low cost and recyclable heterogeneous catalysts for wastewater treatment.In this study,a heterogeneous Fenton catalyst loaded with Fe_(3)O_(4)nanoparticles was prepared by one step pyrolysis using natural crop waste corncob as carbon source.The prepared porous carbon catalyst can effectively degrade methyl orange(MO,25 mg·L^(-1))at room temperature,and the degradation rate is 99.7%.In addition to high catalytic degradation activity,the layered porous carbon structure of the catalyst also provides high stability and reusability.The degradation rate can be maintained above 93%after 10 cycles.Furthermore,the prepared catalyst is magnetic,which makes the catalyst easy to recycle in practical applications.In addition,the prepared Fe3O4/RCC catalyst has efficient Fenton degradation activity for bisphenol A(BPA)(96.9%)and antibiotic tetracycline hydrochloride(TC-HCl)(95.5%),which proves that it has universal applicability for the degradation of most organic pollutants.This study provides a feasible and scalable strategy to prepare a heterogeneous Fenton catalyst treating wastewater and high-value utilization of biomass waste.

关 键 词：Water treatment Organic dyes Fe_(3)O_(4)nanoparticles Heterogeneous Fenton catalyst CORNCOB Porous carbon 

分 类 号：O64[理学—物理化学]