西北师范大学学报（自然科学版）2016，Vol.52Issue(4)：52-56,126,6.DOI:10.16783/j.cnki.nwnuz.2016.04.012
基于 Ag Cu SWNTs 纳米复合材料修饰玻碳电极的过氧化氢安培传感器
Hydrogen peroxide amperometric sensor based on Ag/Cu/SWNTs nanocomposites modified glass carbon electrode
摘要
Abstract
In this paper , a novel amperometric sensor is fabricated by surface modification of glassy carbon electrode with Ag/Cu/SWNTs nanocomposites to determine hydrogen peroxide (H2 O2 ) . The morphology and element composition of the material are investigated by scanning electron microscopy (SEM ) and energy dispersive X‐ray spectrum(EDS) . The electrocatalysis properties are analyzed by cyclic voltammetry (CV) . Under the optimized conditions (-0.3 V of electrodeposition voltage and 4 mmol・L-1 of silver nitrate concentration) , the fabricated sensor displays a broader linear range and a lower detection limit for H 2 O2 . The linear range is from 1.33 to 170 μmol・L -1 with a detection limit of 0.86 μmol・L -1 (S/N=3) . The sensor has good selectivity , reproducibility , long term stability with a swift response time of 2 s and has been used to determine H2 O2 in real disinfector samples with favorable recoveries .关键词
电沉积/单壁碳纳米管/安培传感器/过氧化氢(H2 O2 )Key words
electrodeposition/single-walled carbon nanotubes/amperometric sensor/hydrogen peroxide (H2 O2 )分类
化学引用本文复制引用
张翠忠,邓婷丽,连欢,余先水,彭金云..基于 Ag Cu SWNTs 纳米复合材料修饰玻碳电极的过氧化氢安培传感器[J].西北师范大学学报（自然科学版）,2016,52(4):52-56,126,6.基金项目
国家自然科学基金资助项目（21465004）；广西自治区自然科学基金资助项目（2012GXNSFAA053033）；广西民族师范学院校级项目（2012XYYB003）；广西高校桂西南特色植物资源化学重点实验室培育基地项目 （）
