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Effects of bimetallic nanoparticles Ag and TiO2 embedment on tellurite zinc-silicate glass: Self-cleaning characteristics

M. Nazhirah, S. N. and Ghoshal, Sib Krishna and Arifin, Ramli and Hamzah, Khaidzir (2021) Effects of bimetallic nanoparticles Ag and TiO2 embedment on tellurite zinc-silicate glass: Self-cleaning characteristics. Surfaces and Interfaces, 25 (101236). pp. 1-14. ISSN 2468-0230

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Official URL: http://dx.doi.org/10.1016/j.surfin.2021.101236


The optimum hydrophobic activity resembling the lotus effects could be achieved by the inclusion of bimetallic nanoparticles in the tellurite-based glass. We prepared and characterized the new self-cleaning tellurite zinc-silicate glasses embedded with the silver (Ag) and Titania (TiO2) nanoparticles (NPs) via the meltquenching method. The surface morphology, self-cleaning, mechanical and thermal properties of the as-quenched samples were determined. The embedment of bimetallic nanoparticles (AgNPs and TiO(2)NPs) was found to enhance the water contact angle (WCA) to transform the glass from hydrophilic (86.27 degrees for TZSTA1 glass) to hydrophobic (97.47 degrees for TZSTA4 glass) followed by the reconversion into hydrophilic (81.84 degrees for TZSTA6 glass) nature. The Young, Young-Dupre, Wenzel, and Cassie-Baxter model calculations were performed to complement the experimental results. The sample TZSTA4 prepared with 0.03 mol% of AgNPs revealed the optimal WCA of 97.47 degrees (Young), 95.47O (Wenzel) and 130.13O (Cassie-Baxter); surface tension value of 0.1727 Nm(-1) (for Young) and 0.1761 Nm-1 (for Wenzel). It is established that by controlling the Ag and TiO2 NPs contents, the hydrophobic and hydrophilic traits of the studied glassed can be tailored, thereby enabling the proposed glass compositions suitable for diverse self-cleaning applications.

Item Type:Article
Uncontrolled Keywords:self-cleaning, zinc-tellurite glass, hydrophobic surface, silver nanoparticles, surface tension
Subjects:Q Science > QC Physics
Q Science > QD Chemistry
ID Code:96630
Deposited By: Yanti Mohd Shah
Deposited On:08 Aug 2022 14:50
Last Modified:08 Aug 2022 14:50

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