基于环糊精功能化介孔材料制备高选择性化学修饰电极  

Preparation of Selective Modified Electrode Based on β-CD Functionalized Ordered Mesoporous Materials

作　　者：徐帅[1] 张鑫[1] 段烁[1] 徐晓萌[1] 周长利[1] 

机构地区：[1]济南大学化学化工学院,济南250022

出　　处：《高等学校化学学报》2011年第9期2210-2214,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21077044);山东省自然科学基金(批准号:ZR2009BM034)资助

摘　　要：合成了SBA-15有序多孔氧化硅材料并用β-环糊精(β-CD)对其进行了修饰,制备了功能化介孔修饰的碳糊电极(CD-SBA15/CPE),利用循环伏安法(CV)、示差脉冲伏安法(DPV)等研究了该修饰电极对硝基苯酚、硝基氯苯及苯二酚异构体的识别机理.研究表明,该修饰电极能识别o-,m-,p-硝基苯酚、o-,p-硝基氯苯和o-,p-苯二酚异构体,且具有较高的分辨率和灵敏度.A novel modified carbon paste electrode（CD/SBA-15/CPE） with β-CD-functionalized SBA-15 mesoporous silica（CD/SBA-15） were fabricated and characterized.The recognition mechanism of nitrophenol,chloronitrobenzene and dihydroxybenzene isomers were studied at the modified electrode using cyclic voltammetry（CV） and differential pulse voltammetries（DPV）.The experiment results indicated that o-,m-,p-Nitrophenol,o-,p-Chloronitrobenzene and o-,p-Dihydroxybenzene isomers could be identified entirely at the CD/SBA-15/CPE,respectively.The detection sensivity of CD/SBA-15/CPE were increased resulting from the unique structure and chemical properties of SBA-15,the anodic or cathodic peak resolution of the isomers electrochemical reaction products was increased resulting from the superamolecular recognition of β-CD.The modified electrode might be applied in the practical field.

关 键 词：Β-环糊精 功能化SBA-15 同分异构体 修饰电极 

分 类 号：O657.1[理学—分析化学]