碳纳米管
傅里叶变换红外光谱
过氧化氢
电极
电子转移
电化学
检出限
透射电子显微镜
吸收光谱法
材料科学
化学
分析化学(期刊)
碳纤维
核化学
化学工程
纳米技术
光化学
有机化学
复合数
色谱法
物理化学
工程类
物理
复合材料
量子力学
作者
Mei Guo,Muping Yu,Xiang Li,Maoguo Li
标识
DOI:10.1080/03067319.2017.1381237
摘要
We have prepared the carbon dots (C-dots) by sucrose carbonisation in the presence of sulphuric acid and characterised by transmission electron microscopy, Fourier transform infrared spectra, fluorescence spectroscopy and UV–vis absorption spectra. The resultant C-dots could be used for the activation of CNTs. Cytochrome c immobilised on the functionalised multi-walled carbon nanotube-modified glass carbon electrode was found to promote electron transfer that was investigated by electrochemical methods. The obtained electrode can also be used as a biocatalyser to catalyse the reduction of H2O2. Under optimal conditions, the constructed H2O2 sensor showed two linear segments and the detection limits were 1.02 and 2.59 µM (S/N = 3). The modified electrode displayed high stability, good reproducibility and excellent selectivity.
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