Simultaneous Sensing of Cd(II), Pb(II), and Cu(II) Using Gold Nanoparticle-Modified APTES-Functionalized Indium Tin Oxide Electrode: Effect of APTES Concentration
Abstract:In this work, indium tin oxide (ITO) electrodes were
functionalized
with varying 3-aminopropyltriethoxysilane (APTES) concentration percentages
(0.5, 0.75, 1.0, and 2.0 wt %) to obtain the optimum conditions for
the assembly of the as-synthesized gold nanoparticles (AuNPs). The
AuNP coverage, wettability, and electrochemical performance of the
modified electrodes were evaluated. The AuNP/0.75% APTES-ITO-modified
electrode exhibited uniform coverage of AuNPs and high electrochemical
performance for the simultan… Show more
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