Bi/BiVO_(4)/NiFe-LDH heterostructures with enhanced photoelectrochemical performance for streptomycin detection  

作　　者：Liqin Yang Jun Zhao Caijun Wang Zheng Wang Cuijuan Xing Hao Guo Yuman Wang Zhiju Zhao Zhangji Hu Zhenyu Cai 

机构地区：[1]College of Chemistry and Chemical Engineering,Xingtai University,Xingtai 054001,China [2]School of Physics and Electronic Engineering,Xingtai University,Xingtai 054001,China [3]Xingtai University,Xingtai 054001,China

出　　处：《Journal of Environmental Sciences》2021年第11期114-122,共9页环境科学学报（英文版）

基　　金：supported by Key projects of science and technology research in Hebei Higher Education Institutions(Nos.ZD2018311,ZD2020417);Local science and technology development fund projects guided by the Central Government(No.206Z1402G);Science and Technology Research Project of Colleges and Universities in Hebei Province(No.BJ2019203);Xingtai Science and Technology Program(Nos.2018ZC031,2018ZC227,2019ZZ023,2019ZX07).

摘　　要：Streptomycin(STR)plays an essential role in bacterial infection treatments.Selectivity and sensitivity of photoelectrochemical(PEC)sensors are the two most important parameters,which can be measured using the photosensitivity of its active material.We prepared a novel PEC sensor to detect STR using Bi/BiVO4/LDH(layered double hydroxides)heterostructures as an active material,which is photoactive in the visible light wavelength range.The simultaneous presence of LDH and Bi/BiVO4 enhanced the material photocurrent response,which was linear to the STR concentrations in the 0.01–500 nmol/L range.The STR detection limit by this sensor was 0.0042 nmol/L.Our novel PEC-based sensing strategy includes using an ultra-sensitive and highly selective sensor for STR detection.Additionally,the two-pot synthesis of Bi/BiVO4/LDH developed in this work is environmentally friendly.

关 键 词：Bi/BiVO4/LDH(layered double hydroxides) DETECTION Heterojunction Photoelectrochemical sensor STREPTOMYCIN 

分 类 号：X830.2[环境科学与工程—环境工程]