TiO2 nanotube arrays decorated with Au and Bi2S3 nanoparticles for efficient Fe3+ ions detection and dye photocatalytic degradation

作     者：Jianying Huang Jiali Shen Shuhui Li Jingsheng Cai Shanchi Wang Yao Lu Jihuan He Claire J.Carmalt Ivan P.Parkin Yuekun Lai Jianying Huang;Jiali Shen;Shuhui Li;Jingsheng Cai;Shanchi Wang;Yao Lu;Jihuan He;Claire J.Carmalt;Ivan P.Parkin;Yuekun Lai

作者机构：College of Chemical EngineeringFuzhou UniversityFuzhou350116China National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou215123China Materials Chemistry Research CentreDepartment of ChemistryUniversity College LondonLondonUK 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第39卷第4期

页      面：28-38页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51972063 and 21501127) the 111 Project(No.D17005) the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD) 

主　　题：TiO2 nanotube Au Bi2S3 Photocatalysis Fluorescence sensing 

摘      要：Due to increasingly serious environmental problems,many researchers are investigating green cleanenergy to solve the world’s energy supply *** the strategy that Au nanoparticles(Au NPs)and bismuth sulfide(Bi2S3)NPs are used to evenly decorate TiO2 nanotube arrays(TiO2 NTAs)was carried *** materials demonstrated enhanced solar light absorption ability and excellent photoelectrochemical *** was attributed to the presence of Bi2S3 NPs with a narrow band gap and the decoration with noble metallic Au NPs which resulted in local surface plasmon resonance(LSPR)*** Au/Bi2S3@TiO2 NTAs composites exhibit improved photocatalytic activity for the degradation of methylene blue(MB)under irradiation of UV and visible ***,the Au/Bi2S3@TiO2 NTAs exhibits high fluorescence emission at 822 *** to the better binding affinity between Bi2S3,TiO2 and Fe3+ions,the synthesized nanocomposites exhibit high selectivity to Fe3+*** number of binding sites for Au/Bi2S3@TiO2 NTAs was estimated to be 1.41 according to the double logarithmic regression *** calculated value ofKwas 1862 *** emission intensity decreases with increasing concentration(30μM–5000μM).The detection limit of the synthesized sensor is 0.221μM.