Pandiyarajan, Chinnappan and Yusoff, Norazriena and Seikh, Asiful Hossain and Rameshkumar, Perumal and Karim, Mohammad Rezaul and Murugesan, Sepperumal and Dhanabalan, Karmegam and Oh, Tae Hwan (2025) Electrochemical properties of silver nanoparticles decorated aminosilicate functionalized TiO2 nanocomposite in hydrazine sensing. Physica B-Condensed Matter, 699. p. 416818. ISSN 0921-4526, DOI https://doi.org/10.1016/j.physb.2024.416818.
Full text not available from this repository.Abstract
An electrochemical hydrazine sensor was constructed using a glassy carbon electrode (GCE) customized with a silver-decorated aminosilicate functionalized TiO2 nanocomposite ((Ag/f-TiO2)NCM). Nanoporous TiO2 spheres were prepared and functionalized with aminosilicate (APS), serving as the catalyst support. Silver nanoparticles (AgNPs) were then deposited onto the functionalized TiO2 (f-TiO2) using a chemical reduction method. The modified sensing electrode ((Ag/f-TiO2)NCM) demonstrated superior hydrazine detection capabilities, with a lower limit of detection (LoD) of 0.26 mu M and a sensitivity of 1.297 mu A mu M-1 cm-2. Additionally, the selectivity of (Ag/f-TiO2)NCM for hydrazine was investigated, showing high selectivity over several potential interferents, including Li+, Na+, K+, Cl-, Mg2+, NH4+, Ca2+, and NO3-. The strong metal-support interaction between Ag and TiO2 was thought to modify the electronic properties, thereby enhancing the catalytic activity through efficient charge transfer and improving the stability of the catalysts. This sensing strategy paves the way for the sensitive detection of hydrazine in spiked water samples.
| Item Type: | Article |
|---|---|
| Funders: | King Saud University (RSP2025R373) |
| Uncontrolled Keywords: | Metal nanoparticles; Metal oxides; Aminosilicate functionalization; Electrochemical sensor; Environmental remediation |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Mar 2025 02:49 |
| Last Modified: | 04 Mar 2025 02:49 |
| URI: | http://eprints.um.edu.my/id/eprint/47802 |
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