CAJ | 학술논문

通过酰胺化反应制备了四-2,9,16,23-氨基酞菁钴(TAPcCo)与多壁碳纳米管(MWCNTs)复合材料,红外光谱、扫描电镜和紫外可见吸收光谱分析表明复合材料中酞菁分子与碳管之间是通过酰胺键结合的,紫外吸收光谱还表明两者之间存在着强烈的电子相互作用.同时还研究了复合材料修饰的玻碳电极对香兰素(VNL)的电催化作用.循环伏安法表明,修饰电极对VNL有着良好的电催化活性,相对于裸玻碳电极VNL在修饰电极上峰电位负移了20 mV.峰电流增大了12倍,且VNL在电极表面的反应受吸附控制.方波伏安法证实了这一反应过程中有质子参与.同时,方波伏安法研究还发现:峰电流与香兰素浓度在4.2μmol·L-1～5 mmol·L-1范周内呈良好的线性关系,检出限(3.3 S/N)为0.44 μmol·L-1.
통과선알화반응제비료사-2,9,16,23-안기태정고(TAPcCo)여다벽탄납미관(MWCNTs)복합재료,홍외광보、소묘전경화자외가견흡수광보분석표명복합재료중태정분자여탄관지간시통과선알건결합적,자외흡수광보환표명량자지간존재착강렬적전자상호작용.동시환연구료복합재료수식적파탄전겁대향란소(VNL)적전최화작용.순배복안법표명,수식전겁대VNL유착량호적전최화활성,상대우라파탄전겁VNL재수식전겁상봉전위부이료20 mV.봉전류증대료12배,차VNL재전겁표면적반응수흡부공제.방파복안법증실료저일반응과정중유질자삼여.동시,방파복안법연구환발현:봉전류여향란소농도재4.2μmol·L-1～5 mmol·L-1범주내정량호적선성관계,검출한(3.3 S/N)위0.44 μmol·L-1.
Multi-walled carbon nanotubes (MWCNTs) chemically modified by 2,9,16,23-tetraaminophthalocyaninatocobalt (TAPcCo) with amide bond (MWCNTs-TAPcCo) have been prepared and characterized by FTIR,SEM and UV-Vis spectra.An glass carbon electrode (GCE) modified by MwCNTs-TAPcCo exhibited strongly enhanced sensitivity towards the detection of vanillin(VNL),the peak potential of VNL oxidation decreased 20mV and peak current increased 12 times compared with bare glass carbon electrode (BGCE),and the detection limit was estimated to be 0.44 μmol·L-1 at a signal-to-noise ratio of 3.3.