Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique

Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique

Anatase Titanium Dioxide (TiO2) sol was synthesized in room temperature 27°C and ambient pressure by hydrolysis of Titanium Tetraisopropoxide (TTiP) in acidic aqueous solution (Hydrochloric acid, HCl), ethanol and deionized water. Degussa P25 powder was used as a precursor to enhance the anatase pre...

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Main Author: Md Radzai, Fatimah
Format: Thesis
Language:English
English
Published: 2012
Subjects:
T Technology (General)
TJ Mechanical engineering and machinery
Online Access:http://eprints.utem.edu.my/id/eprint/6735/1/Characterization%20study%20of%20silver%20titanium%20dioxide%20%28AgTiO2%29%20thin%20film%20deposited%20on%20various%20substrates%20via%20sol-gel%20technique.pdf
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institution Universiti Teknikal Malaysia Melaka
collection UTeM Repository
language English
English
advisor Rosli, Zulkifli
topic T Technology (General)
TJ Mechanical engineering and machinery
spellingShingle T Technology (General)
TJ Mechanical engineering and machinery
Md Radzai, Fatimah
Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
description Anatase Titanium Dioxide (TiO2) sol was synthesized in room temperature 27°C and ambient pressure by hydrolysis of Titanium Tetraisopropoxide (TTiP) in acidic aqueous solution (Hydrochloric acid, HCl), ethanol and deionized water. Degussa P25 powder was used as a precursor to enhance the anatase presence in the crystalline phase, as Degussa P25 powder is comprised of anatase and rutile phase with the ratio of 70:30. At room temperature and in ambient atmosphere, crystalline TiO2 thin films were deposited on Acrylic Perxpex (AP), glass, stainless steel and ceramic from the as-prepared TiO2 sol by a dip-coating process. TiO2 layers on the substrate were thickened by consecutive coatings. Then the TiO2 coated substrates were finally dipped into pure nanosilver to ensure protection against microbial. Sintering was applied at different temperatures from 120 to 600 °C in order to enhance crystallization. AgTiO2 thin film is found to be in good adhesion to the substrates through means of ultrasonically immersed in water and sticky tape adhesion. Anatase crystallite size was calculated through full-width at half-maximum (FWHM) in the X-ray Diffraction (XRD) intensities of anatase (101) peak at 2θ = 25.3° using Scherrer equation. The increase in calcinations temperature is parallel with the increase of the crystallite size. The anatase/rutile percentage was calculated through anatase and rutile intensities, to show the coherent ratio relevant to the Degussa P25 powder presence. Field-emission type scanning electron microscope (FE-SEM) investigations revealed that the AgTiO2 thin films on each substrates were porous and uniform, while the average particle sizes of the nanoparticles composing the AgTiO2 thin films on different substrates are in range of 37~87 nm corresponding with the calculated particles achieved by the Scherrer equation. The AgTiO2 thin films exhibited smooth porous surface, anatase phase and increasing crystallite size with increasing calcinations temperature. These are the characteristics that are proned to achieve high photocatalytic conditions.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Md Radzai, Fatimah
author_facet Md Radzai, Fatimah
author_sort Md Radzai, Fatimah
title Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
title_short Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
title_full Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
title_fullStr Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
title_full_unstemmed Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique
title_sort characterization study of silver titanium dioxide (agtio2) thin film deposited on various substrates via sol-gel technique
granting_institution Universiti Teknikal Malaysia Melaka
granting_department Faculty of Manufacturing Engineering
publishDate 2012
url http://eprints.utem.edu.my/id/eprint/6735/1/Characterization%20study%20of%20silver%20titanium%20dioxide%20%28AgTiO2%29%20thin%20film%20deposited%20on%20various%20substrates%20via%20sol-gel%20technique.pdf
http://eprints.utem.edu.my/id/eprint/6735/2/Characterization%20study%20of%20silver%20titanium%20dioxide%20%28AgTiO2%29%20thin%20film%20deposited%20on%20various%20substrates%20via%20sol-gel%20technique.pdf
_version_ 1747833809009639424
spelling my-utem-ep.67352022-09-21T09:06:04Z Characterization study of silver titanium dioxide (AgTiO2) thin film deposited on various substrates via sol-gel technique 2012-09 Md Radzai, Fatimah T Technology (General) TJ Mechanical engineering and machinery Anatase Titanium Dioxide (TiO2) sol was synthesized in room temperature 27°C and ambient pressure by hydrolysis of Titanium Tetraisopropoxide (TTiP) in acidic aqueous solution (Hydrochloric acid, HCl), ethanol and deionized water. Degussa P25 powder was used as a precursor to enhance the anatase presence in the crystalline phase, as Degussa P25 powder is comprised of anatase and rutile phase with the ratio of 70:30. At room temperature and in ambient atmosphere, crystalline TiO2 thin films were deposited on Acrylic Perxpex (AP), glass, stainless steel and ceramic from the as-prepared TiO2 sol by a dip-coating process. TiO2 layers on the substrate were thickened by consecutive coatings. Then the TiO2 coated substrates were finally dipped into pure nanosilver to ensure protection against microbial. Sintering was applied at different temperatures from 120 to 600 °C in order to enhance crystallization. AgTiO2 thin film is found to be in good adhesion to the substrates through means of ultrasonically immersed in water and sticky tape adhesion. Anatase crystallite size was calculated through full-width at half-maximum (FWHM) in the X-ray Diffraction (XRD) intensities of anatase (101) peak at 2θ = 25.3° using Scherrer equation. The increase in calcinations temperature is parallel with the increase of the crystallite size. The anatase/rutile percentage was calculated through anatase and rutile intensities, to show the coherent ratio relevant to the Degussa P25 powder presence. Field-emission type scanning electron microscope (FE-SEM) investigations revealed that the AgTiO2 thin films on each substrates were porous and uniform, while the average particle sizes of the nanoparticles composing the AgTiO2 thin films on different substrates are in range of 37~87 nm corresponding with the calculated particles achieved by the Scherrer equation. The AgTiO2 thin films exhibited smooth porous surface, anatase phase and increasing crystallite size with increasing calcinations temperature. These are the characteristics that are proned to achieve high photocatalytic conditions. 2012-09 Thesis http://eprints.utem.edu.my/id/eprint/6735/ http://eprints.utem.edu.my/id/eprint/6735/1/Characterization%20study%20of%20silver%20titanium%20dioxide%20%28AgTiO2%29%20thin%20film%20deposited%20on%20various%20substrates%20via%20sol-gel%20technique.pdf text en public http://eprints.utem.edu.my/id/eprint/6735/2/Characterization%20study%20of%20silver%20titanium%20dioxide%20%28AgTiO2%29%20thin%20film%20deposited%20on%20various%20substrates%20via%20sol-gel%20technique.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=79337 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering Rosli, Zulkifli 7 References Atabaki, M. M., Jafar, R. & Idris, J., 2010. Sol–Gel Bioactive Glass Coating For Improvement Of Biocompatible Human Body Implant. Association of Metallurgical Engineers of Serbia . Barati, N., Sani, M. 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Porter, J., Li, Y. & Chan, C., 1999. J. Mater. Sci., Volume 34, p. 1523. Seery, M., Nolan, N. & Pillai, S., 2009. Spectroscopic Investigation of the Anatase-to- Rutile Transformation of Sol-Gel Synthesised TiO2 Photocatalysts. Centre for Research in Engineering Surface Technology . Sisti, L., Cruciani, L., Vannini, M. & Berti, C., 2012. TiO2 deposition on the surface of activated fluoropolymer substrate. Thin Solid Films, Volume 520, p. 2824–2828. Sondi, I. & Salopek-Sondi, B., 2004. Silver nanoparticles as antimicrobial agent: a case study on E. coli as a model for Gram-negative bacteria. Journal of Colloid and Interface science, 275(1), pp. 177-182. Spurr, R. A. & Myers, H., 1957. Quantitative analysis of anatase–rutile mixtures with an X-ray diffractometer. Analytical Chemistry, 29(5), p. 760–762. Sun, S.-Q., Sun, B., Zhang, W. & Wang, D., 2008. Preparation and antibacterial activity of AgTiO2 composite film by liquid phase deposition (LPD) method. Bull. 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