Perovskite-metal-oxide-based advanced oxidation technology for water treatment application
Advanced oxidation processes (AOPs) currently used for water treatment are usually chemical and energetical intensive processes. In this project, Strontium Ferrite (SFO) was explored as an alternative material for bifunctional AOP for cost-effective water treatment application. The perovskite SFO me...
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sg-ntu-dr.10356-558512023-07-04T17:11:32Z Perovskite-metal-oxide-based advanced oxidation technology for water treatment application Leiw, Ming Yian Tan Ooi Kiang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Advanced oxidation processes (AOPs) currently used for water treatment are usually chemical and energetical intensive processes. In this project, Strontium Ferrite (SFO) was explored as an alternative material for bifunctional AOP for cost-effective water treatment application. The perovskite SFO metal oxide particles were prepared by a combined high temperature and high-energy ball milling process and their physicochemical properties were characterized systematically. The SFO could breakdown toxic and carcinogenic pollutants such as BPA and AO8 under dark ambient condition. Intermediate byproducts and responsible reactive oxidative species were identified to understand the dark oxidative degradation mechanism. Degradation efficiencies were enhanced under visible light illumination. However, the SFO was partially decomposed into strontium carbonate due to carbon dioxide poisoning. Substitution of iron atoms by titanium atoms, forming solid solutions STFx metal oxides could improve the structural stability of the SFO but at the expense of oxidative degradation performance with increasing titanium composition. DOCTOR OF PHILOSOPHY (EEE) 2014-04-02T08:58:34Z 2014-04-02T08:58:34Z 2014 2014 Thesis Leiw, M. Y. (2014). Perovskite metal oxide based advanced oxidation technology for water treatment application. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/55851 10.32657/10356/55851 en 203 p. application/pdf |
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DRNTU::Engineering::Electrical and electronic engineering Leiw, Ming Yian Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
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Advanced oxidation processes (AOPs) currently used for water treatment are usually chemical and energetical intensive processes. In this project, Strontium Ferrite (SFO) was explored as an alternative material for bifunctional AOP for cost-effective water treatment application. The perovskite SFO metal oxide particles were prepared by a combined high temperature and high-energy ball milling process and their physicochemical properties were characterized systematically. The SFO could breakdown toxic and carcinogenic pollutants such as BPA and AO8 under dark ambient condition. Intermediate byproducts and responsible reactive oxidative species were identified to understand the dark oxidative degradation mechanism. Degradation efficiencies were enhanced under visible light illumination. However, the SFO was partially decomposed into strontium carbonate due to carbon dioxide poisoning. Substitution of iron atoms by titanium atoms, forming solid solutions STFx metal oxides could improve the structural stability of the SFO but at the expense of oxidative degradation performance with increasing titanium composition. |
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Tan Ooi Kiang |
author_facet |
Tan Ooi Kiang Leiw, Ming Yian |
format |
Theses and Dissertations |
author |
Leiw, Ming Yian |
author_sort |
Leiw, Ming Yian |
title |
Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
title_short |
Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
title_full |
Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
title_fullStr |
Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
title_full_unstemmed |
Perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
title_sort |
perovskite-metal-oxide-based advanced oxidation technology for water treatment application |
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2014 |
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https://hdl.handle.net/10356/55851 |
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1772828656637313024 |