Detection of p-nitrophenol by electrochemical analysis of CsxWO3 /g-C3N4 heterojunction composites
BAI Saishuai1， WU Jing2， HE Xiaomiao1， XIONG Zhiguo1， LIAO Guodong1， ZOU Jing1， JIANG Jizhou1,2
(1.School of Environmental Ecology and Biological Engineering， School of Chemistry and Environmental Engineering， Key Laboratory of Green Chemical Engineering Process of Ministry of Education， Wuhan Institute of Technology， Wuhan 430205， China； 2.Key Laboratory of Rare Mineral， Ministry of Natural Resources， Geological Experimental Testing Center of Hubei Province， Wuhan 430034， China)
Abstract：Using the heterojunction of g-C3N4 and CsxWO3 as the electrode modified material， the g-C3N4/CsxWO3 electrochemical sensor was constructed for the sensitive and efficient rapid detection of p-nitrophenol. The detection of p-nitrophenol at the modified electrode was studied by differential pulse voltammetry. The results showed that the electrochemical analysis method exhibited high sensitivity for the detection of p-nitrophenol and good linear relationship in the concentration range of 0.2～150 μmol·L－1. The detection limit was about 0.067 μmol·L－1， with a wide linear range and low detection limit， good stability， reproducibility and anti-interference ability， which is able to be used for the determination of p-nitrophenol in actual water samples.
2022, Vol. 56 
