Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System
The photocatalytic activity on decomposition of Rhodamine B (RB) of titanate nanotubes (TNTs) synthesized by alkali hydrothermal treatment method was evaluated using a microwave/UV/photocatalyst hybrid system. The effects of each element technique as well as the synergy effects on decomposition of o...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/901907 |
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| author | Sun-Jae Kim Young-Seak Lee Byung Hoon Kim Seong-Gyu Seo Sung Hoon Park Sang Chul Jung |
| author_facet | Sun-Jae Kim Young-Seak Lee Byung Hoon Kim Seong-Gyu Seo Sung Hoon Park Sang Chul Jung |
| author_sort | Sun-Jae Kim |
| collection | DOAJ |
| description | The photocatalytic activity on decomposition of Rhodamine B (RB) of titanate nanotubes (TNTs) synthesized by alkali hydrothermal treatment method was evaluated using a microwave/UV/photocatalyst hybrid system. The effects of each element technique as well as the synergy effects on decomposition of organic material were investigated. When TNTs were ion-exchanged with HCl, Na+ content was reduced from 8.36 wt% to 0.03 wt%, whereas the TNTs calcined at 723 K was phase-transformed into anatase structure. The RB decomposition rate increased with TNTs dosage as well as with microwave intensity. Effect of addition of auxiliary oxidants on photocatalytic decomposition of RB was also investigated. When ozone was added, the decomposition rate increased with the amount of ozone added. When H2O2 was used as the auxiliary oxidant, however, addition of H2O2 exceeding a threshold amount caused reduction of decomposition rate. A synergy effect was observed when H2O2 addition was combined with microwave-assisted photocatalysis. |
| format | Article |
| id | doaj-art-ce6c6dc60c1e442485568a3cd1997204 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-ce6c6dc60c1e442485568a3cd19972042025-02-03T01:00:56ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/901907901907Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control SystemSun-Jae Kim0Young-Seak Lee1Byung Hoon Kim2Seong-Gyu Seo3Sung Hoon Park4Sang Chul Jung5Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaDepartment of Fine Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 305-764, Republic of KoreaDepartment of Dental Materials, School of Dentistry, Chosun University, Gwangju 501-759, Republic of KoreaDepartment of Civil and Environmental Engineering, Chonnam National University, Yosu 550-749, Republic of KoreaDepartment of Environmental Engineering, Sunchon National University, Sunchon 540-742, Republic of KoreaDepartment of Environmental Engineering, Sunchon National University, Sunchon 540-742, Republic of KoreaThe photocatalytic activity on decomposition of Rhodamine B (RB) of titanate nanotubes (TNTs) synthesized by alkali hydrothermal treatment method was evaluated using a microwave/UV/photocatalyst hybrid system. The effects of each element technique as well as the synergy effects on decomposition of organic material were investigated. When TNTs were ion-exchanged with HCl, Na+ content was reduced from 8.36 wt% to 0.03 wt%, whereas the TNTs calcined at 723 K was phase-transformed into anatase structure. The RB decomposition rate increased with TNTs dosage as well as with microwave intensity. Effect of addition of auxiliary oxidants on photocatalytic decomposition of RB was also investigated. When ozone was added, the decomposition rate increased with the amount of ozone added. When H2O2 was used as the auxiliary oxidant, however, addition of H2O2 exceeding a threshold amount caused reduction of decomposition rate. A synergy effect was observed when H2O2 addition was combined with microwave-assisted photocatalysis.http://dx.doi.org/10.1155/2012/901907 |
| spellingShingle | Sun-Jae Kim Young-Seak Lee Byung Hoon Kim Seong-Gyu Seo Sung Hoon Park Sang Chul Jung Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System International Journal of Photoenergy |
| title | Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System |
| title_full | Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System |
| title_fullStr | Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System |
| title_full_unstemmed | Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System |
| title_short | Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System |
| title_sort | photocatalytic activity of titanate nanotube powders in a hybrid pollution control system |
| url | http://dx.doi.org/10.1155/2012/901907 |
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