Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10559691 | Talanta | 2011 | 6 Pages |
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
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Dzung Tuan Nguyen, Lam Dai Tran, Huy Le Nguyen, Binh Hai Nguyen, Nguyen Van Hieu,