Full-spectrum responsive photocatalytic activity via non-noble metal Bi decorated mulberry-like BiVO_(4)

作     者：Yaxin Bi Yanling Yang Xiao-Lei Shi Lei Feng Xiaojiang Hou Xiaohui Ye Li Zhang Guoquan Suo Siyu Lu Zhi-Gang Chen Yaxin Bi;Yanling Yang;Xiao-Lei Shi;Lei Feng;Xiaojiang Hou;Xiaohui Ye;Li Zhang;Guoquan Suo;Siyu Lu;Zhi-Gang Chen

作者机构：School of Materials Science and EngineeringShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi'an710021China Centre for Future MaterialsUniversity of Southern QueenslandSpringfieldQLD4300Australia School of Mechanical and Mining EngineeringThe University of QueenslandBrisbaneQLD4072Australia College of Chemistry and Molecular EngineeringZhengzhou UniversityZhengzhou 450001China 

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

年 卷 期：2021年第83卷第24期

页      面：102-112页

核心收录：

学科分类：07[理学] 081705[工学-工业催化] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51464020,51704188,51802181,61705125 and 51702199) Australian Research Council。 

主　　题：Bi BiVO_(4) Photocatalysis Full-spectrum Density functional theory 

摘      要：Due to its appropriate bandgap(~2.4 e V)and efficient light absorption,bismuth vanadate(Bi VO_(4))shows promising photocatalysis activity.However,the charge carrier recombination and poor electron transmission often induce poor photocatalytic performance.Herein,we report a new method to in-situ synthesize non-noble metal Bi decorated mulberry-like Bi VO_(4)by a two-step calcination process.Comprehensive characterizations reveal that non-noble metal Bi nanoparticles grown in-situ on Bi VO_(4)result in the red-shift of the absorbance edge,greatly extending the light absorption from the ultraviolet into the near-infrared region.The surface plasmon resonance excitation of Bi nanoparticles and synergetic effects between Bi and Bi VO_(4)effectively improve the photocatalytic efficiency and promote the separation of photoinduced electron-hole pairs in mulberry-like Bi VO_(4).Density functional theory(DFT)calculation results further verify that the electrons are transferred from Bi to Bi VO_(4)and the formation of·OH radical in Bi/Bi VO_(4)is attributed to the lower simulated free energy,which supports our experimental outcomes.This work provides a novel strategy to enhance light absorption and promote efficient solar utilization of photocatalysts for practical applications.