摘要
基于带正电荷的壳聚糖（CHIT）和功能化的带负电荷的多壁碳纳米管（MWNTs）之间的静电吸附，通过层层自组装的方法制备了均一、稳定的{CHIT／MWNTs}。多层膜。组装{CHIT／MWNTs}9多层膜的玻碳（GC）电极用来研究H2O2的电催化氧化，测定H2O2的线性范围、响应时间和检测下限分别为：8×10^-6～1．0×10^-2mol／L（相关性系数为0．997）、2s和4×10^-6mol／L。另外，{CHIT／MWNTs}9／GC电极具有较好的稳定性能。
Muhilayer film was homogeneously and stably assembled on glassy carbon （GC） electrode by layer-by-layer （LBL） method based on electrostatic interaction between positively charged biopolymer chitosan （CHIT） with functionalized negatively charged multiwalled carbon nanotubes （MWNTs）. The assembled { CHIT/MWNTs} 9 film was used to investigate the electrocatalytic oxidation of H202. The resulting { CHIT/MWNTs } 9/GC electrode exhibited a wide linear response range of 8 × 10^-6 - 1.0 × 10^-2 mol/L with a correlation coefficient of 0. 997 for the detection of H2O2. And the response time and detection limit （ S/N = 3 ） of the { CHIT/MWNTs t 9/GC electrode were determined to be 2 s and 4 × 10^-6moL/ L, respectively. Another attractive character was that this assembled {CHIT/MWNTs}9/GC electrode was highly stable, and could be used for a long time.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第3期65-68,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学资助项目(20020532007
03123)
