Title of article :
Modified interdigitated arrays by novel poly(1,8-diaminonaphthalene)/carbon nanotubes composite for selective detection of mercury(II)
Author/Authors :
Nguyen، نويسنده , , Dzung Tuan and Tran، نويسنده , , Lam Dai and Le Nguyen، نويسنده , , Huy and Nguyen، نويسنده , , Binh Hai and Van Hieu، نويسنده , , Nguyen، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2011
Abstract :
This study describes a novel type of interdigitated arrays (IDA), microfabricated by electropolymerizing structured Poly(1,8-diaminonaphthalene)/functionalized multi-walled carbon nanotubes (PDAN/CNT) thin film onto a silicon chip for square wave voltammetry (SWV) multi-element heavy metal ion detection. The structure of PDAN/CNT was characterized by Raman, FE-SEM and AFM techniques. Analysed experiments reveal that the uptake of Hg2+ by PDAN/CNT is quite specific and it can be used advantageously for electrochemical sensing of Hg2+ thanks to original feature of (Hg2+/Hg22+) redox potential with the respect to that of PDAN/CNT. As-developed IDA type electrode can extend its utility in other sensing applications.
Keywords :
Functionalized multi-walled carbon nanotubes (CNT) , Poly(1 , Square wave voltammetry (SWV) , Mercury selective detection , Interdigitated arrays (IDA) , 8-diaminonaphthalene) (PDAN)
