分析测试学报2012，Vol.31Issue(3)：273-277,5.DOI:10.3969/j.issn.1004-4957.2012.03.006
金纳米粒子/碳纳米管修饰电极对4-壬基酚的电催化氧化及检测研究
Electrocatalytic Oxidation and Determination of 4-n-Nonylphenol Based on Gold Nanoparticles/Multi-walled Carbon Nanotubes Modified Glassy Carbon Electrode
摘要
Abstract
A gold nanoparticles/multi-walled carbon nanotubes modified glassy carbon electrode (AuNPs - CNTs/GCE) was prepared, and the electrochemical behavior of 4-n.-octylphenol( NP) on the modified electrode was investigated by cyclic voltammetry ( C V) and linear sweep voltammetric (LSV) method. In BR buffer solution, a sensitive oxidation peak of NP was found at +0. 51 V and the oxidation peak current was significantly enhanced by AuNPs - CNTs/GCE compared with those by bare glassy carbon electrode (GCE) and multi-walled carbon nanotubes modified glassy carbon electrode (CNTs/GCE). Based on this, a simple and sensitive electroanalytical method was developed for the determination of NP. Factors such as pH, scan rate and accumulation time that influenced the detection processes were optimized. Under the optimal conditions, the oxidation peak current was proportional to NP concentration in wide linear ranges of 0. 05 - 4 μmol/L and 6-14 μmol/L with correlation coefficients of 0. 998 4 and 0. 993 3, respectively. The low detection limit was 0. 023 μmol/L. The spiked recoveries of the samples were in the range of 95% - 104% . With the advantages of simple preparation, high sensitivity, low cost, excellent reproducibility and stability, the proposed method could be used in the determination of NP in environmental sample.关键词
碳纳米管/4-壬基酚/金纳米粒子/伏安法Key words
multi -walled carbon nanotubes/ 4-n-nonylphenol(NP) / gold nanoparticles/ voltammery分类
化学化工引用本文复制引用
郑巧利,杨萍,许双姐,吴根英,许贺,柳建设,金利通..金纳米粒子/碳纳米管修饰电极对4-壬基酚的电催化氧化及检测研究[J].分析测试学报,2012,31(3):273-277,5.基金项目
国家自然科学基金(41073060) （41073060）
国家自然科学基金青年基金(21005014) （21005014）
上海市教育发展委员会“晨光计划”资助项目(11CG34) （11CG34）
