循环水中氯离子检测电极的制备及性能研究  

Preparation and performance study of detection electrode for chloride ion in circulating water

作　　者：张宇航 赵敏[2] 鲍彦舟 胡杰 颜家保 ZHANG Yu-hang;ZHAO Min;BAO Yan-zhou;HU Jie;YAN Jia-bao(Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials,School of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;School of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;School of Chemistry and Environmental Engineering,Wuhan Polytechnic University,Wuhan 430023,China)

机构地区：[1]武汉科技大学化学与化工学院,煤转化与新型炭材料湖北省重点实验室,湖北武汉430081 [2]武汉科技大学信息科学与工程学院,湖北武汉430081 [3]武汉轻工大学化学与环境工程学院,湖北武汉430023

出　　处：《现代化工》2024年第9期242-246,共5页Modern Chemical Industry

基　　金：湖北省技术创新专项重大项目(2017ACA179);武汉科技大学“十四五”湖北特色学科项目(2023B0501)。

摘　　要：以银盘电极为基底电极,在0.1 mol/L HCl溶液中、沉积电流密度为1 mA/cm^(2)、沉积时间为30 min的条件下,采用恒电流法制备了氯离子选择性电极,并考察了该电极的电化学性能。结果表明,该电极在1×10^(-1)~1×10^(-4) mol/L的氯化钠溶液中呈现良好的能斯特响应,响应斜率为59.01 mV/dec,电极检测极限为1.94×10^(-5) mol/L(0.69 mg/L),响应时间在40 s以内,具有良好的重现性和抗干扰能力,电极使用寿命超过2个月;与摩尔法相比,实际循环水样的检测结果误差为4.26%,满足循环水中氯离子快速检测要求。Using a silver disk electrode as the substrate,a chloride ion selective electrode is prepared via constant current deposition at a current density of 1 mA·cm^(-2)for 30 minutes in a 0.1 mol·L^(-1)HCl solution.The electrochemical performance of the electrode is investigated.Results demonstrate that the electrode exhibits a good Nernst response in sodium chloride solution in the concentration range of 1×10^(-1)to 1×10^(-4) mol·L^(-1),with a response slope of 59.01 mV·dec^(-1),an electrode detection limit of 1.94×10^(-5) mol·L^(-1)(0.69 mg·L^(-1)),and a response time within 40 seconds.Additionally,the electrode displays good reproducibility and interference resistance,with a lifespan exceeding 2 months.The error in detecting actual circulating water samples is 4.26%,meeting the rapid detection requirement for chloride ions in circulating water.

关 键 词：氯离子 离子选择性电极 电极性能 循环水 

分 类 号：TQ150[化学工程—电化学工业]