Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2
The copolymer poly(fluorene-co-thiophene) (PFT) has strong absorption in the visible light region. In this paper, PFTs with four different thiophene contents were evaluated for their suitability as photosensitizers of TiO2. All four of the PFTs were capable of being excited by light with wavelengths...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2008/164702 |
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| _version_ | 1832566118864125952 |
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| author | Rongliang Qiu Lin Song Dongdong Zhang Yueqi Mo Eric Brewer Xiongfei Huang |
| author_facet | Rongliang Qiu Lin Song Dongdong Zhang Yueqi Mo Eric Brewer Xiongfei Huang |
| author_sort | Rongliang Qiu |
| collection | DOAJ |
| description | The copolymer poly(fluorene-co-thiophene) (PFT) has strong absorption in the visible light region. In this paper, PFTs with four different thiophene contents were evaluated for their suitability as photosensitizers of TiO2. All four of the PFTs were capable of being excited by light with wavelengths above 455 nm, and all had reductive potentials more negative than the conduction band potential of TiO2. Consequently, it was deemed that transfer of electrons from the excited PFTs to the conduction band of TiO2 was thermodynamically possible. PFTs with higher thiophene content had more electron transitions in the excited state, resulting in increased photocatalytic activity of PFT-sensitized TiO2. The method used to prepare the combined PFT/TiO2 photocatalyst affected its photocatalytic activity. Best results in this study were achieved by dropwise addition of a tetrahydrofuran solution of PFT to a stirred TiO2/ethanol suspension. |
| format | Article |
| id | doaj-art-2f60973a4d3a47e1b20c1a0ffefd31b0 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-2f60973a4d3a47e1b20c1a0ffefd31b02025-02-03T01:04:54ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2008-01-01200810.1155/2008/164702164702Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2Rongliang Qiu0Lin Song1Dongdong Zhang2Yueqi Mo3Eric Brewer4Xiongfei Huang5School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaCollege of Material Science and Engineering, South China University of Technology, Guangzhou 510641, ChinaViridian Environmental, LLC, Arlington, VA 22207, USASchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaThe copolymer poly(fluorene-co-thiophene) (PFT) has strong absorption in the visible light region. In this paper, PFTs with four different thiophene contents were evaluated for their suitability as photosensitizers of TiO2. All four of the PFTs were capable of being excited by light with wavelengths above 455 nm, and all had reductive potentials more negative than the conduction band potential of TiO2. Consequently, it was deemed that transfer of electrons from the excited PFTs to the conduction band of TiO2 was thermodynamically possible. PFTs with higher thiophene content had more electron transitions in the excited state, resulting in increased photocatalytic activity of PFT-sensitized TiO2. The method used to prepare the combined PFT/TiO2 photocatalyst affected its photocatalytic activity. Best results in this study were achieved by dropwise addition of a tetrahydrofuran solution of PFT to a stirred TiO2/ethanol suspension.http://dx.doi.org/10.1155/2008/164702 |
| spellingShingle | Rongliang Qiu Lin Song Dongdong Zhang Yueqi Mo Eric Brewer Xiongfei Huang Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 International Journal of Photoenergy |
| title | Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 |
| title_full | Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 |
| title_fullStr | Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 |
| title_full_unstemmed | Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 |
| title_short | Characterization of Conjugated Polymer Poly(fluorene-co-thiophene) and Its Application as Photosensitizer of TiO2 |
| title_sort | characterization of conjugated polymer poly fluorene co thiophene and its application as photosensitizer of tio2 |
| url | http://dx.doi.org/10.1155/2008/164702 |
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