Examination of photocatalytic redox process in removal of bisphenol-A in wastewater

Advanced oxidation processes (AOP) is an aqueous phase oxidation system, widely known for organic contaminants degradation. In this project, AOP is applied through heterogeneous photocatalysis under irradiation of UV and visible light. The focus of this project is to synthesize an active TiO2 photoc...

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Main Author: Liu, Jaime LiShan.
Other Authors: Lim Teik Thye
Format: Final Year Project
Language:English
Published: 2009
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Online Access:http://hdl.handle.net/10356/15931
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-159312023-03-03T17:09:31Z Examination of photocatalytic redox process in removal of bisphenol-A in wastewater Liu, Jaime LiShan. Lim Teik Thye School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment Advanced oxidation processes (AOP) is an aqueous phase oxidation system, widely known for organic contaminants degradation. In this project, AOP is applied through heterogeneous photocatalysis under irradiation of UV and visible light. The focus of this project is to synthesize an active TiO2 photocatalyst that is visible light responsive and evaluate its performance with reference to commercial Degussa P25. Nitrogen doped TiO2 at calcined temperature of 400oC and 600oC has been produced for the study. Characterizations of the synthesized sample were done to understand its morphology, composition, specific surface area, and photo-absorption property. Photocatalytic oxidations of bis-phenol A were carried out using synthesized N-TiO2 and P25. The experimental analysis reflected the ability of photocatalyst to perform photocatalytic oxidation under UVA condition and visible light irradiation with degradation of 55.6 % and 30.8% for 400oC N-TiO2 and 59.5% and 25.2% for 600oC N-TiO2 respectively. It is evident from the findings that nitrogen doping would be dependent the annealing temperature of photocatalyst, photocatalyst loading and presence of dissolved oxygen to achieve a certain photodegradation rate and efficiency. However due to the unavailability of resources and time constraint, experiment was conducted once for each operational parameters. Bachelor of Engineering (Environmental Engineering) 2009-05-19T04:33:58Z 2009-05-19T04:33:58Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15931 en Nanyang Technological University 46 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Liu, Jaime LiShan.
Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
description Advanced oxidation processes (AOP) is an aqueous phase oxidation system, widely known for organic contaminants degradation. In this project, AOP is applied through heterogeneous photocatalysis under irradiation of UV and visible light. The focus of this project is to synthesize an active TiO2 photocatalyst that is visible light responsive and evaluate its performance with reference to commercial Degussa P25. Nitrogen doped TiO2 at calcined temperature of 400oC and 600oC has been produced for the study. Characterizations of the synthesized sample were done to understand its morphology, composition, specific surface area, and photo-absorption property. Photocatalytic oxidations of bis-phenol A were carried out using synthesized N-TiO2 and P25. The experimental analysis reflected the ability of photocatalyst to perform photocatalytic oxidation under UVA condition and visible light irradiation with degradation of 55.6 % and 30.8% for 400oC N-TiO2 and 59.5% and 25.2% for 600oC N-TiO2 respectively. It is evident from the findings that nitrogen doping would be dependent the annealing temperature of photocatalyst, photocatalyst loading and presence of dissolved oxygen to achieve a certain photodegradation rate and efficiency. However due to the unavailability of resources and time constraint, experiment was conducted once for each operational parameters.
author2 Lim Teik Thye
author_facet Lim Teik Thye
Liu, Jaime LiShan.
format Final Year Project
author Liu, Jaime LiShan.
author_sort Liu, Jaime LiShan.
title Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
title_short Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
title_full Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
title_fullStr Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
title_full_unstemmed Examination of photocatalytic redox process in removal of bisphenol-A in wastewater
title_sort examination of photocatalytic redox process in removal of bisphenol-a in wastewater
publishDate 2009
url http://hdl.handle.net/10356/15931
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