钙钛矿修饰玻碳电极测定铬离子
Determination of Chromium Ions with Perovskite Modified Glassy Carbon Electrode
李元胜 1李娴 1潘雨欣 1董彦杰1
作者信息
- 1. 安庆师范大学 化学化工学院,安徽安庆 246001
- 折叠
摘要
制备了有机-无机-钙钛矿材料(C2H7NPbBr3NCs),并用于修饰玻碳电极.使用该电极研究了 Cr3+的电化学行为,同时优化了 Cr3+浓度、溶液pH值、缓冲溶液pH值及缓冲溶液用量等实验条件.在Na2 HPO4-C(OH)(COOH)(CH2 COOH)2(枸橼酸)缓冲溶液(pH=5.60)中,采用循环伏安法发现,在1.0~8.0 μmol·L-1浓度范围内,Cr3+的浓度与电流呈线性关系.所制备的修饰电极可直接用于废水中Cr3+的测定,且具有较强抗干扰能力.
Abstract
The organic-inorganic-perovskite material(C2H7NPbBr3NCs)was prepared and used to modify the glass carbon electrode.By using the electrode,behavior of Cr3+was studied,and the concentration of Cr3+,solu-tion pH,pH of buffer solution and dosage of buffer solution were optimized.In Na2HPO4-C(OH)(COOH)(CH2COOH)2(citrate)buffer solution(pH=5.60),the concentration of Cr3+is linearly related to the current in the range of 1.0~8.0 µmol·L-1 with cyclic voltammetry.The modified electrode can be directly used for the determination of Cr3+in waste water,and has strong anti-interference ability.
关键词
铬离子/钙钛矿材料/化学修饰电极/循环伏安法Key words
chromium ion/perovskite material/chemical modified electrode/cyclic voltammetry引用本文复制引用
基金项目
国家自然科学基金(21601002)
国家自然科学基金(B010303)
省部共建煤炭高效利用与绿色化工国家重点实验室开放基金(2019-KF-31)
出版年
2024