BiOI纳米片电极的光电化学性能及对苯酚的检测  

Photoelectrochemical Performance of BiOI Nanosheet Electrode and Its Detection of Phenol

作　　者：李梦岩 李永宇 屈星含 丁梦瑶 赵金燕 陈建军 LI Meng-yan;LI Yong-yu;QU Xing-han;DING Meng-yao;ZHAO Jin-yan;CHEN Jian-jun(Institute of Environmental&Catalytic Engineering,School of Chemistry and Chemical Engineering,Zhengzhou Normal University,Zhengzhou 450044,China)

机构地区：[1]郑州师范学院化学化工学院环境与催化工程研究所,河南郑州450044

出　　处：《化学试剂》2021年第6期729-735,共7页Chemical Reagents

基　　金：河南省高等学校重点科研项目(21B150022);河南省大学生创新创业训练计划项目(202012949015);郑州师范学院大学生创新性实验计划项目(DCZ2019005);郑州师范学院大学生科研创新基金资助项目(2019112)。

摘　　要：通过恒电位电沉积法制备了BiOI纳米片光电极,利用XRD、SEM和DRS等手段对其进行了表征,考察了偏置电压和沉积时间对BiOI电极的物相、光吸收以及电化学性能的影响,优化出最佳制备条件为偏置电压-0.14 V、沉积时间300 s。建立了基于该BiOI纳米片电极的光电化学检测苯酚的方法,在30~420μmol/L的浓度范围内,光电流的倒数与苯酚浓度呈现良好的线性关系,线性方程为1/ΔI=-0.00109c+1.43753(R2=0.99781)。该方法成功应用于实际水样中苯酚的检测,取得了良好的回收率和较低的相对标准偏差。BiOI nanosheet photoelectrodes were prepared by potentiostatic electrodeposition method and characterized by using XRD,SEM and DRS characterizations.The effects of deposition voltage and time on the phase,light absorption and electrochemical performance of BiOI electrodes were investigated.The optimized preparation conditions were the deposition voltage of-0.14 V and the time of 300 s.A photoelectrochemical detection method for phenol based on the BiOI nanosheet electrode was established based on the BiOI nanosheet electrode.The reciprocal of the photocurrent and the phenol concentrations showed a good linear relationship within the concentration range of 30~420μmol/L,and the linear equation was 1/ΔI=-0.00109c+1.43753(R2=0.99781),this method was successfully applied to the detection of phenol in real actual water samples,and achieved good recovery and low RSD.

关 键 词：电化学沉积法 BiOI纳米片 苯酚 光电流 检测 

分 类 号：O649.3[理学—物理化学]