普鲁士蓝/壳聚糖杂化膜修饰氧化锌球腔阵列/氧化铟锡电极制备及应用
Preparation and Application of the Prussian Blue/Chitosan Hybrid Film Modified Zinc Oxide Cavities Array/Indium-Tin Oxide Electrode
摘 要
用Langmuir-Blodgett技术制成了附着聚苯乙烯小球的氧化铟锡(InSnO)模板。将此模板水平置于由硝酸锌及柠檬酸组成的前驱体溶胶中,用溶胶-凝胶法制得氧化锌球腔阵列/氧化铟锡电极。采用电沉积法得到普鲁士蓝/壳聚糖杂化膜修饰的氧化锌球腔阵列/氧化铟锡电极。该电极在pH 7.0~8.0的溶液中具有良好的电化学活性,过氧化氢浓度在7.67×10-7~4.72×10-4mol·L-1范围内与相应的电流响应值呈线性关系,检出限(3S/N)为2.4×10-7mol·L-1。测定2.0×10-5mol·L-1过氧化氢溶液时,其相对标准偏差(n=10)为3.8%。
普鲁士蓝/壳聚糖杂化膜
过氧化氢
ZnO cavities array/InSnO electrode
PB/chitosan hybrid film
H2O2
Abstract
A pattern plate of indium-tin oxide (InSnO) fixed with polystyrene microballs was prepared by applying the Langmuir-Blodgette technique. The pattern plate was placed horizontally into a precuisor sol containing Zn(NO3)2 and citric acid, and the ZnO cavities array/InSnO electrode was prepared by the Sol-Jel method. The prussian blue (PB)/chitosan hybrid film modified ZnO cavities array/InSnO electrode was obtained by electrode-position technique. This modified electrode showed good electrochemical activity in solution of pH 7.0-8.0, and linear relationship was obtained between values of response current and concentration of H2O2 in the range of 7.67×10-7-4.72×10-4mol·L-1, with detection limit (3S/N) of 2.4×10-7mol·L-1. Value of RSD (n=10) found in determination of 2.0×10-5mol·L-1 H2O2 was 3.8%.
中图分类号 O657.1
所属栏目 试验与研究
基金项目 国家自然科学基金(20975073);江苏省自然科学基金(BK2008147)
收稿日期 2011/6/21
修改稿日期
网络出版日期
作者单位点击查看
联系人作者周宇(jscsyf@msn.com)
备注周宇(1985-),男,湖南祁东人,硕士研究生,研究方向为分析化学。
引用该论文: ZHOU Yu,ZHU Qing-liang,YIN Fan,SUN Lei,ZHOU Li-juan,LIU Ya-juan. Preparation and Application of the Prussian Blue/Chitosan Hybrid Film Modified Zinc Oxide Cavities Array/Indium-Tin Oxide Electrode[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(4): 384～387
周宇,朱庆亮,尹凡,孙磊,周丽娟,刘亚娟. 普鲁士蓝/壳聚糖杂化膜修饰氧化锌球腔阵列/氧化铟锡电极制备及应用[J]. 理化检验－化学分册, 2012, 48(4): 384～387
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参考文献
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【5】RAO M S P, RAO A R M. Thallimetric photochemical oxidations in the analysis of ternary mixtures of hydrogen peroxide, oxalate and phosphite［J］. Anal Chim Acta, 1992,257(1):159-163．
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【7】HOLLAND B T, BLANFORD C F, DO T, et al. Synthesis of highly ordered, three-dimensional, macroporous structures of amorphous or crystalline inorganic oxides, phosphates, and hybrid composites［J］. Chem Mater, 1999,11(3):795-805．
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