Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide
Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still deba...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Published: |
Institution of Engineering and Technology
2018
|
| Subjects: |
| _version_ | 1796961273409175552 |
|---|---|
| author | Soo, Chan Wai Lai, Chin Wei Pan, Guan Ting Yang, Thomas Chung Kuang Lee, Kian Mun Yusop, Rahimi Muhammad Juan, Joon Ching |
| author_facet | Soo, Chan Wai Lai, Chin Wei Pan, Guan Ting Yang, Thomas Chung Kuang Lee, Kian Mun Yusop, Rahimi Muhammad Juan, Joon Ching |
| author_sort | Soo, Chan Wai |
| collection | UM |
| description | Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity. |
| first_indexed | 2024-03-06T05:51:46Z |
| format | Article |
| id | um.eprints-20633 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:51:46Z |
| publishDate | 2018 |
| publisher | Institution of Engineering and Technology |
| record_format | dspace |
| spelling | um.eprints-206332019-03-11T03:22:09Z http://eprints.um.edu.my/20633/ Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide Soo, Chan Wai Lai, Chin Wei Pan, Guan Ting Yang, Thomas Chung Kuang Lee, Kian Mun Yusop, Rahimi Muhammad Juan, Joon Ching Q Science (General) TP Chemical technology Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity. Institution of Engineering and Technology 2018 Article PeerReviewed Soo, Chan Wai and Lai, Chin Wei and Pan, Guan Ting and Yang, Thomas Chung Kuang and Lee, Kian Mun and Yusop, Rahimi Muhammad and Juan, Joon Ching (2018) Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide. Micro & Nano Letters, 13 (1). pp. 77-82. ISSN 1750-0443, DOI https://doi.org/10.1049/mnl.2017.0238 <https://doi.org/10.1049/mnl.2017.0238>. https://doi.org/10.1049/mnl.2017.0238 doi:10.1049/mnl.2017.0238 |
| spellingShingle | Q Science (General) TP Chemical technology Soo, Chan Wai Lai, Chin Wei Pan, Guan Ting Yang, Thomas Chung Kuang Lee, Kian Mun Yusop, Rahimi Muhammad Juan, Joon Ching Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title | Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title_full | Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title_fullStr | Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title_full_unstemmed | Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title_short | Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| title_sort | effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide |
| topic | Q Science (General) TP Chemical technology |
| work_keys_str_mv | AT soochanwai effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT laichinwei effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT panguanting effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT yangthomaschungkuang effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT leekianmun effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT yusoprahimimuhammad effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide AT juanjoonching effectsofvarioushydrogenatedtemperaturesonphotocatalyticactivityofmesoporoustitaniumdioxide |