Facile synthesis of NiAl_(2)O_(4)/g-C_(3)N_(4) composite for efficient photocatalytic degradation of tetracycline

作     者：Huagen Liang Chenxi Zhu Anhu Wang Kannan Palanisamy Fu Chen Huagen Liang;Chenxi Zhu;Anhu Wang;Kannan Palanisamy;Fu Chen

作者机构：Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and UtilizationCarbon Neutrality InstituteChina University of Mining and TechnologyXuzhou 221008China School of Materials and PhysicsChina University of Mining and TechnologyXuzhou 221008China College of BiologicalChemical Science and EngineeringJiaxing UniversityJiaxing 314001China School of Public AdministrationHohai UniversityNanjing 210098China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2023年第127卷第5期

页      面：700-713页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0710[理学-生物学] 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）] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 0817[工学-化学工程与技术] 0703[理学-化学] 0836[工学-生物工程] 

基　　金：supported by the National Natural Science Foundation of China(No.21908242) 

主　　题：Graphitic carbon nitride Spinel-type metal oxides Heterostructure Photocatalytic degradation Antibiotic 

摘      要：Designing high-efficiency photocatalysts responsive to visible light is important for the degradation of antibiotics in *** engineering is undoubtedly an effective strategy to improve the photocatalytic *** this work,spinel-type metal oxides(NiAl_(2)O_(4),NAO)are synthesized by a simple sol-gel and calcination *** compounding graphitic carbon nitride(g-C_(3)N_(4)),NAO/g-C_(3)N_(4) heterojunction is obtained,which then is used as the photocatalyst for tetracycline hydrochloride(TC).The effects of photocatalyst dosage,the initial concentration of TC,and solution pH on photodegradation performance are systematically *** removal rate of TC on NAO/g-C_(3)N_(4) reach up to∼90%after visible light irradiation for 2 hr and the degradation rate constant is∼7 times,and∼32 times higher than that of pure NAO and g-C_(3)N_(4).The significantly improved photocatalytic activity can be attributed to the synergistic effect between well matched energy levels in NAO/g-C_(3)N_(4) heterojunctions,improvement of interfacial charge transfer,and enhancement of visible light *** study provides a way for the synthesis of efficient photocatalysts and an economic strategy for removing antibiotics contamination in water.