Journal
ELECTROANALYSIS
Volume 26, Issue 5, Pages 971-979Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201300625
Keywords
Bionanotechnology; Nickel hexacyanoferrate; Multiwalled carbon nanotube; Tannic acid; Persulfate; Cyclic voltammetry
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Funding
- King Saud University
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A nanocomposite film of NiHCF electrodeposited onto AFCNT was modified on GCE by the electrostatic interaction of multiple scan cyclic voltammetry. Amino groups have been introduced with a positive charge onto the surface of MWCNTs. The presence of NiHCF-AFCNT/GCE was characterized by using FE-SEM, EDS, EIS, and XRD studies. The nanocomposite film of NiHCF-AFCNT was further utilized to determine persulfate and tannic acid, respectively. The nanocomposite film modified electrode displays linear response from 0.1 to 19mM and 10 to 170 mu M for persulfate and tannic acid with a correlation coefficient of 0.9921 and 0.9869. The detection limits were found to be 0.1mM and 1 mu M, respectively. As results, the electrostatic interaction between positively charged metal ions, amino functionalized CNT and negatively charged hexacyanoferrate can be a new subject for many interesting applications.
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