用磷钨杂多酸-聚吡咯-氧化铝薄膜修饰玻碳电极测定废水中的对苯二酚  

Determination of hydroquinone in wastewater with glassy carbon electrode modified by phosphotungstate-polypyrrole-porous alumina film

作　　者：武五爱[1] 高宝平[1] 

机构地区：[1]吕梁学院汾阳分院,山西汾阳032200

出　　处：《化学研究》2012年第2期78-81,共4页Chemical Research

基　　金：山西省自然科学基金资助项目(20001057)

摘　　要：利用草酸电解液一步阳极氧化法在高纯铝表面制得纳米孔阳极氧化铝(AAO)薄膜;随后通过纳米孔阳极氧化铝模板电聚合,将磷钨杂多酸(PW12)掺杂吡咯(Py)溶液修饰到玻碳电极(GCE)表面,制得高灵敏的纳米微粒修饰电极(PW12-PPy/AGCE);研究了PW12-PPy/AGCE的伏安行为,考察了其影响因素;并将该电极应用于废水中对苯二酚的测定.结果表明,所制备的PW12-PPy/AGCE可以用于测定废水中的对苯二酚.Porous anodic aluminum oxide（AAO） films with highly ordered structure were prepared on highly pure aluminum surface by one-step electrochemical anodizing in oxalic acid solution.As-obtained AAO films were then used as templates for electro-polymerization to incorporate a solution containing polypyrrole（PPy） and phosphotungstate PW12O3-40（PW12） onto the surface of glassy carbon electrode（GCE）,generating modified electrode PW12-PPy/AGCE.The electrochemical behavior of PW12-PPy/AGCE and the factors influencing its electrochemical behavior were investigated;and as-obtained PW12-PPy/AGCE electrode was used to determine hydroquinone in wastewater.It has been found that the modified electrode PW12-PPy/AGCE can be readily and satisfactorily adopted to determine hydroquinone in wastewater.

关 键 词：磷钨杂多酸 阳极氧化铝薄膜 修饰玻碳电极 废水 对苯二酚 测定 

分 类 号：O651[理学—分析化学]