Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route

TiO2 thin film coating has been a scope of interest for the purpose of photocatalytic application due to its superior photocatalyst properties. Nowadays, complex formulation or various techniques are deployed due to the drawbacks of TiO2 itself which has large band gap and low efficiency towards vis...

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Main Author:	Abd Yazid, Nurul Shuhadah
Format:	Thesis
Language:	English English
Published:	2020
Subjects:	Q Science (General) QC Physics
Online Access:	http://eprints.utem.edu.my/id/eprint/25404/1/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf http://eprints.utem.edu.my/id/eprint/25404/2/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf
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id	my-utem-ep.25404
record_format	uketd_dc
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Rosli, Zulkifli Mohd
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Abd Yazid, Nurul Shuhadah Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
description	TiO2 thin film coating has been a scope of interest for the purpose of photocatalytic application due to its superior photocatalyst properties. Nowadays, complex formulation or various techniques are deployed due to the drawbacks of TiO2 itself which has large band gap and low efficiency towards visible region. Thus, in this research, the main objective is to produce TiO2 thin film photocatalyst coating via sol-gel dip coating method using green sol-gel formulation (without solvent). First objective is to investigate the influences of solvent with ethanol (E16 and E8) and without ethanol (E0) at five and ten dipping numbers and heat treatment (500°C and 600°C) on the characteristic of the deposited TiO2 thin film. The main characteristics such as crystalline phases, crystallites size, phase composition, and surface morphology of the deposited thin films are reported. Second objective is to synthesis the hydrolysis ratio, r (16, 10, 8, and 5) between deionized water and TTiP precursor on the deposited TiO2 thin film especially its photocatalytic characteristics particularly focusing on the green sol-gel route. Third objective is to evaluate the photocatalytic performance of the deposited TiO2 thin film via green sol-gel route under UV-light and visible light using photo degradation method of methylene blue.TiO2 thin film characteristic such as its crystalline phases were analysed using XRD and RAMAN, while the crystallites size and phases composition were calculated using Scherrer’s equation and Spurr’s equation respectively. The surface morphologies and films thicknesses were analysed using SEM. The band gap value was obtained from UV-vis spectrum and Tauc plot equation. The photocatalytic test was conducted using color degradation method of methylene blue exposed under irradiation of UV-light and visible light for five hours. It is found that TiO2 thin film fabricated via novel green sol gel route with the hydrolysis ratio, r=5 (R32:6) showed the best photocatalytic characteristic and performance which possess an important characteristic of without ethanol (E0), mixed crystalline phases of anatase and rutile and consume low heat treatment temperature of 500°C. The crystallites size produced were large and in the range of photocatalytic crystallites size with an average of 17.2 nm to 28.9 nm. It phases composition also showed the best applicable composition with a mixture of 70% anatase and 30% rutile in addition with small thickness of 2.9µm as well as with small band gap of 2.85 eV which are good in enhancing photocatalytic activity. Further analysis with color degradation method confirmed that the fabricated TiO2 thin film of green sol gel with r = 5 showed the highest photodegraded of methylene blue of 97%± 0.5 under UV-light region and 86%± 1.8 under visible light region for five hours’ duration. As a conclusion, TiO 2 thin film of novel green sol gel route is successfully fabricated for better photocatalytic performance under both UV-light region and visible light region.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abd Yazid, Nurul Shuhadah
author_facet	Abd Yazid, Nurul Shuhadah
author_sort	Abd Yazid, Nurul Shuhadah
title	Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
title_short	Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
title_full	Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
title_fullStr	Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
title_full_unstemmed	Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route
title_sort	synthesis of titanium dioxide thin film for photocatalytic activity via green sol-gel route
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Manufacturing Engineering
publishDate	2020
url	http://eprints.utem.edu.my/id/eprint/25404/1/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf http://eprints.utem.edu.my/id/eprint/25404/2/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf
_version_	1747834119909277696
spelling	my-utem-ep.254042021-11-18T14:17:18Z Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route 2020 Abd Yazid, Nurul Shuhadah Q Science (General) QC Physics TiO2 thin film coating has been a scope of interest for the purpose of photocatalytic application due to its superior photocatalyst properties. Nowadays, complex formulation or various techniques are deployed due to the drawbacks of TiO2 itself which has large band gap and low efficiency towards visible region. Thus, in this research, the main objective is to produce TiO2 thin film photocatalyst coating via sol-gel dip coating method using green sol-gel formulation (without solvent). First objective is to investigate the influences of solvent with ethanol (E16 and E8) and without ethanol (E0) at five and ten dipping numbers and heat treatment (500°C and 600°C) on the characteristic of the deposited TiO2 thin film. The main characteristics such as crystalline phases, crystallites size, phase composition, and surface morphology of the deposited thin films are reported. Second objective is to synthesis the hydrolysis ratio, r (16, 10, 8, and 5) between deionized water and TTiP precursor on the deposited TiO2 thin film especially its photocatalytic characteristics particularly focusing on the green sol-gel route. Third objective is to evaluate the photocatalytic performance of the deposited TiO2 thin film via green sol-gel route under UV-light and visible light using photo degradation method of methylene blue.TiO2 thin film characteristic such as its crystalline phases were analysed using XRD and RAMAN, while the crystallites size and phases composition were calculated using Scherrer’s equation and Spurr’s equation respectively. The surface morphologies and films thicknesses were analysed using SEM. The band gap value was obtained from UV-vis spectrum and Tauc plot equation. The photocatalytic test was conducted using color degradation method of methylene blue exposed under irradiation of UV-light and visible light for five hours. It is found that TiO2 thin film fabricated via novel green sol gel route with the hydrolysis ratio, r=5 (R32:6) showed the best photocatalytic characteristic and performance which possess an important characteristic of without ethanol (E0), mixed crystalline phases of anatase and rutile and consume low heat treatment temperature of 500°C. The crystallites size produced were large and in the range of photocatalytic crystallites size with an average of 17.2 nm to 28.9 nm. It phases composition also showed the best applicable composition with a mixture of 70% anatase and 30% rutile in addition with small thickness of 2.9µm as well as with small band gap of 2.85 eV which are good in enhancing photocatalytic activity. Further analysis with color degradation method confirmed that the fabricated TiO2 thin film of green sol gel with r = 5 showed the highest photodegraded of methylene blue of 97%± 0.5 under UV-light region and 86%± 1.8 under visible light region for five hours’ duration. As a conclusion, TiO 2 thin film of novel green sol gel route is successfully fabricated for better photocatalytic performance under both UV-light region and visible light region. 2020 Thesis http://eprints.utem.edu.my/id/eprint/25404/ http://eprints.utem.edu.my/id/eprint/25404/1/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf text en validuser http://eprints.utem.edu.my/id/eprint/25404/2/Synthesis%20Of%20Titanium%20Dioxide%20Thin%20Film%20For%20Photocatalytic%20Activity%20Via%20Green%20Sol-Gel%20Route.pdf text en public https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=119681 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering Rosli, Zulkifli Mohd 1. Addamo, M., Bellardita, M., Di Paola, A., and Palmisano, L., 2006. Preparation and Photoactivity of Nanostructured Anatase, Rutile and Brookite TiO2 Thin Films. 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Synthesis Of Titanium Dioxide Thin Film For Photocatalytic Activity Via Green Sol-Gel Route

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