FeOOH/g-C_(3)N_(4)吸附偶联光芬顿降解四环素的研究  

Study on the adsorption coupling photo-fenton degradation of tetracycline by FeOOH/g-C_(3)N_(4)

作　　者：张浩 周春燕 李妍赫 陈晓[1,2] ZHANG Hao;ZHOU Chunyan;LI Yanhe;CHEN Xiao(Microfluidic Synthesis and Separation Laboratory,School of Chemistry and Environment,Southwest Minzu University,Chengdu 610041,China;Key Laboratory of Basic Chemistry,State Ethnic Affairs Commission,School of Chemistry and Environment,Southwest Minzu University,Chengdu 610041,China)

机构地区：[1]西南民族大学化学与环境学院,微流体合成与分离实验室,四川成都610041 [2]西南民族大学化学与环境学院,化学基础国家民委重点实验室,四川成都610041

出　　处：《西南民族大学学报(自然科学版)》2025年第1期48-56,共9页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：国家自然科学基金青年基金项目(21406183);西南民族大学引进人才科研启动金资助项目(RQD2023021)。

摘　　要：四环素(TC)因其广谱抗菌活性和低成本而被广泛应用于制药、水产养殖及农业中,然而其滥用或过度使用导致大量TC通过废水进入湖泊河流,对环境产生了不利影响。针对TC污染问题,通过原位沉淀制备了FeOOH与石墨相氮化碳(g-C_(3)N_(4))的复合材料(FeOOH/g-C_(3)N_(4))作为非均相光芬顿催化剂。研究了其吸附以及光芬顿偶联降解TC的性能,考察了FeOOH负载量对TC吸附以及光芬顿降解效率的影响,FeOOH/g-C_(3)N_(4)-300饱和吸附量达到35.42 mg/g。FeOOH/g-C_(3)N_(4)的降解效率是纯g-C_(3)N_(4)降解效率的近3倍,TC降解率达到99%,反应速率常数为0.093 min^(-1)。Tetracycline(TC)was widely used in pharmaceuticals,aquaculture,and agriculture due to its broad-spectrum antibacterial activity and low cost.However,its abuse or overuse has led to a large amount of TC entering lakes and rivers through wastewater,causing adverse effects on the environment.In response to tetracycline contamination,a composite material(FeOOH/g-C_(3)N_(4))of FeOOH and graphitic carbon nitride(g-C_(3)N_(4))was prepared by in-situ precipitation as a heterogeneous photo-fenton catalyst.The performance of its adsorption and photo-fenton degradation of TC was studied,and the influence of FeOOH loading on TC adsorption and photo-fenton degradation efficiency was investigated.The saturated adsorption capacity of FeOOH/g-C_(3)N_(4)-300 reaches 35.42 mg/g.The degradation efficiency of FeOOH/g-C_(3)N_(4)was nearly three times that of pure g-C_(3)N_(4),the degradation rate of TC reached 99%,and the reaction rate constant was 0.093 min^(-1).

关 键 词：FeOOH/g-C_(3)N_(4) 光催化 光芬顿 吸附 

分 类 号：X703[环境科学与工程—环境工程] TQ424[化学工程] O643.36[理学—物理化学]