Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
Stannic oxide-titanium dioxide ( SnO 2 TiO 2) coupled semiconductor photocatalyst loaded with polyaniline (PANI), a conducting polymer, possesses a high photocatalytic activity in oxidation of 1-octene to 1,2-epoxyoctane with aqueous hydrogen peroxide. The photocatalyst was prepared by impregnation...
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| Format: | Article |
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Hindawi Publishing Corporation
2007
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| _version_ | 1796854201192546304 |
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| author | Nur, Hadi Misnon, Izan Izwan Wei, Lim Kheng |
| author_facet | Nur, Hadi Misnon, Izan Izwan Wei, Lim Kheng |
| author_sort | Nur, Hadi |
| collection | ePrints |
| description | Stannic oxide-titanium dioxide ( SnO 2 TiO 2) coupled semiconductor photocatalyst loaded with polyaniline (PANI), a conducting polymer, possesses a high photocatalytic activity in oxidation of 1-octene to 1,2-epoxyoctane with aqueous hydrogen peroxide. The photocatalyst was prepared by impregnation of SnO 2 and followed by attachment of PANI onto a TiO 2 powder to give sample PANI- SnO 2 TiO 2 . The electrical conductivity of the system becomes high in the presence of PANI. Enhanced photocatalytic activity was observed in the case of PANI- SnO 2 TiO 2 compared to PANI- TiO 2, SnO 2 TiO 2, and TiO 2 . A higher photocatalytic activity in the oxidation of 1-octene on PANI- SnO 2 TiO 2 than SnO 2 TiO 2, PANI- TiO 2, and TiO 2 can be considered as an evidence of enhanced charge separation of PANI- SnO 2 TiO 2 photocatalyst as confirmed by photoluminescence spectroscopy. It suggests that photoinjected electrons are tunneled from TiO 2 to SnO 2 and then to PANI in order to allow wider separation of excited carriers. |
| first_indexed | 2024-03-05T18:10:52Z |
| format | Article |
| id | utm.eprints-7313 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:10:52Z |
| publishDate | 2007 |
| publisher | Hindawi Publishing Corporation |
| record_format | dspace |
| spelling | utm.eprints-73132010-11-02T09:22:39Z http://eprints.utm.my/7313/ Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene Nur, Hadi Misnon, Izan Izwan Wei, Lim Kheng QD Chemistry Stannic oxide-titanium dioxide ( SnO 2 TiO 2) coupled semiconductor photocatalyst loaded with polyaniline (PANI), a conducting polymer, possesses a high photocatalytic activity in oxidation of 1-octene to 1,2-epoxyoctane with aqueous hydrogen peroxide. The photocatalyst was prepared by impregnation of SnO 2 and followed by attachment of PANI onto a TiO 2 powder to give sample PANI- SnO 2 TiO 2 . The electrical conductivity of the system becomes high in the presence of PANI. Enhanced photocatalytic activity was observed in the case of PANI- SnO 2 TiO 2 compared to PANI- TiO 2, SnO 2 TiO 2, and TiO 2 . A higher photocatalytic activity in the oxidation of 1-octene on PANI- SnO 2 TiO 2 than SnO 2 TiO 2, PANI- TiO 2, and TiO 2 can be considered as an evidence of enhanced charge separation of PANI- SnO 2 TiO 2 photocatalyst as confirmed by photoluminescence spectroscopy. It suggests that photoinjected electrons are tunneled from TiO 2 to SnO 2 and then to PANI in order to allow wider separation of excited carriers. Hindawi Publishing Corporation 2007 Article PeerReviewed Nur, Hadi and Misnon, Izan Izwan and Wei, Lim Kheng (2007) Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene. International Journal of Photoenergy, 2007 (98548). 6pg. ISSN 1110-662X http://dx.doi.org/10.1155/2007/98548 doi:10.1155/2007/98548 |
| spellingShingle | QD Chemistry Nur, Hadi Misnon, Izan Izwan Wei, Lim Kheng Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene |
| title | Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
|
| title_full | Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
|
| title_fullStr | Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
|
| title_full_unstemmed | Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
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| title_short | Stannic oxide-titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1-octene
|
| title_sort | stannic oxide titanium dioxide coupled semiconductor photocatalyst loaded with polyaniline for enhanced photocatalytic oxidation of 1 octene |
| topic | QD Chemistry |
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