Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region

In recent year, photocatalyst has been gaining a wide attention as the ability to harness the free energy from sunlight to perform variety of function such as organic degradation, solar cell and etc. When used as photocatalyst, titanium dioxide (TiO2) is able to absorb ultraviolet light only (UV) to...

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Main Author: Wooi Chuan, Tan
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/10775/
http://umpir.ump.edu.my/id/eprint/10775/
http://umpir.ump.edu.my/id/eprint/10775/1/%28CD8326%29%20TAN%20WOO%20CHUAN.pdf
id ump-10775
recordtype eprints
spelling ump-107752015-10-15T06:15:04Z http://umpir.ump.edu.my/id/eprint/10775/ Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region Wooi Chuan, Tan TS Manufactures In recent year, photocatalyst has been gaining a wide attention as the ability to harness the free energy from sunlight to perform variety of function such as organic degradation, solar cell and etc. When used as photocatalyst, titanium dioxide (TiO2) is able to absorb ultraviolet light only (UV) to initiate the oxidation and reduction which is able to speed up the degradation of dye. This thus provides a cheap and efficient method to solve the dye mismanagement that is face in industries these days. In this work, the titanium dioxide nanoparticle is modified via hydrazine wet method to increase photocatalytic activity. The photocatalytic activity is studied via methylene blue degradation, followed by the kinetic study on the methylene blue degradation. The catalyst has been characterized via UV-VIS spectrophotometer, FTIR machine and XRD machine. From the result, we realized that the main reaction that occurred during the modification is combustion of hydrazine on the surface of TiO2. From the UV-Vis spectrum, we found out that the modify catalyst can absorb more visible light as compare to the commercial TiO2. FTIR spectrum indicated that NHx group, NO group and an increase of OH group is presented after the modification. XRD pattern analysis suggested the crystallinity of the catalyst is slightly increased after the modification. Methylene blue degradation also showed that the modified catalyst have a higher activity as compared to the commercial one. The results obtained suggesting that the photocatalytic activity is increasing due to the ability of the catalyst to absorb visible light after the treatment. The modeling is done by relating the rate of methylene blue degradation with the direct hole attack and the hydroxyl radical attack occurred in the reaction 2013-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10775/1/%28CD8326%29%20TAN%20WOO%20CHUAN.pdf Wooi Chuan, Tan (2013) Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:83366&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TS Manufactures
spellingShingle TS Manufactures
Wooi Chuan, Tan
Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
description In recent year, photocatalyst has been gaining a wide attention as the ability to harness the free energy from sunlight to perform variety of function such as organic degradation, solar cell and etc. When used as photocatalyst, titanium dioxide (TiO2) is able to absorb ultraviolet light only (UV) to initiate the oxidation and reduction which is able to speed up the degradation of dye. This thus provides a cheap and efficient method to solve the dye mismanagement that is face in industries these days. In this work, the titanium dioxide nanoparticle is modified via hydrazine wet method to increase photocatalytic activity. The photocatalytic activity is studied via methylene blue degradation, followed by the kinetic study on the methylene blue degradation. The catalyst has been characterized via UV-VIS spectrophotometer, FTIR machine and XRD machine. From the result, we realized that the main reaction that occurred during the modification is combustion of hydrazine on the surface of TiO2. From the UV-Vis spectrum, we found out that the modify catalyst can absorb more visible light as compare to the commercial TiO2. FTIR spectrum indicated that NHx group, NO group and an increase of OH group is presented after the modification. XRD pattern analysis suggested the crystallinity of the catalyst is slightly increased after the modification. Methylene blue degradation also showed that the modified catalyst have a higher activity as compared to the commercial one. The results obtained suggesting that the photocatalytic activity is increasing due to the ability of the catalyst to absorb visible light after the treatment. The modeling is done by relating the rate of methylene blue degradation with the direct hole attack and the hydroxyl radical attack occurred in the reaction
format Undergraduates Project Papers
author Wooi Chuan, Tan
author_facet Wooi Chuan, Tan
author_sort Wooi Chuan, Tan
title Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
title_short Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
title_full Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
title_fullStr Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
title_full_unstemmed Modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
title_sort modification of titanium dioxide nanoparticle to enhance the photoactivity in visible light region
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/10775/
http://umpir.ump.edu.my/id/eprint/10775/
http://umpir.ump.edu.my/id/eprint/10775/1/%28CD8326%29%20TAN%20WOO%20CHUAN.pdf
first_indexed 2023-09-18T22:10:46Z
last_indexed 2023-09-18T22:10:46Z
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