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- Publisher Website: 10.1016/j.materresbull.2014.06.017
- Scopus: eid_2-s2.0-84903278104
- WOS: WOS:000340313400050
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Article: The visible light degradation activity and the photocatalytic mechanism of tetra (4-carboxyphenyl) porphyrin sensitized TiO 2
| Title | The visible light degradation activity and the photocatalytic mechanism of tetra (4-carboxyphenyl) porphyrin sensitized TiO 2 |
|---|---|
| Authors | |
| Keywords | Catalytic properties Composites Infrared spectroscopy X-ray diffraction |
| Issue Date | 2014 |
| Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/matresbu |
| Citation | Materials Research Bulletin, 2014, v. 57, p. 311-319 How to Cite? |
| Abstract | Tetra(4-carboxyphenyl) porphyrin(TCPP) were chemically sensitized on TiO2 to act as visible light antenna and to modify the photoresponse properties of TiO2 particles, their properties of photo-generated holes and electrons were studied by transient absorption spectroscopes. The time-correlated single-photon counting (TCSPC) technique revealed that the S2–S0 fluorescence intensity of TCPP is enhanced noticeably by TiO2, and the lifetime prolonged. Adsorption and photo degradation of methylene blue (MB) over TCPP-TiO2 were systematically investigated. Moreover the overall picture of electronic relaxation dynamics for TCPP-TiO2 is presented, and the detailed short-time dynamics for visible-light induced catalytic mechanism was discussed. The development of the porphyrin-based photocatalyst provides an alternative approach in harnessing solar visible light and show promising prospect for the treatment of dye pollutants from wastewaters in future industrial application. |
| Persistent Identifier | http://hdl.handle.net/10722/215100 |
| ISSN | 2021 Impact Factor: 5.600 2020 SCImago Journal Rankings: 0.861 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Wang, H | - |
| dc.contributor.author | Zhou, D | - |
| dc.contributor.author | Wu, Z | - |
| dc.contributor.author | Wan, J | - |
| dc.contributor.author | Zheng, X | - |
| dc.contributor.author | Yu, L | - |
| dc.contributor.author | Phillips, DL | - |
| dc.date.accessioned | 2015-08-21T12:27:45Z | - |
| dc.date.available | 2015-08-21T12:27:45Z | - |
| dc.date.issued | 2014 | - |
| dc.identifier.citation | Materials Research Bulletin, 2014, v. 57, p. 311-319 | - |
| dc.identifier.issn | 0025-5408 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/215100 | - |
| dc.description.abstract | Tetra(4-carboxyphenyl) porphyrin(TCPP) were chemically sensitized on TiO2 to act as visible light antenna and to modify the photoresponse properties of TiO2 particles, their properties of photo-generated holes and electrons were studied by transient absorption spectroscopes. The time-correlated single-photon counting (TCSPC) technique revealed that the S2–S0 fluorescence intensity of TCPP is enhanced noticeably by TiO2, and the lifetime prolonged. Adsorption and photo degradation of methylene blue (MB) over TCPP-TiO2 were systematically investigated. Moreover the overall picture of electronic relaxation dynamics for TCPP-TiO2 is presented, and the detailed short-time dynamics for visible-light induced catalytic mechanism was discussed. The development of the porphyrin-based photocatalyst provides an alternative approach in harnessing solar visible light and show promising prospect for the treatment of dye pollutants from wastewaters in future industrial application. | - |
| dc.language | eng | - |
| dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/matresbu | - |
| dc.relation.ispartof | Materials Research Bulletin | - |
| dc.subject | Catalytic properties | - |
| dc.subject | Composites | - |
| dc.subject | Infrared spectroscopy | - |
| dc.subject | X-ray diffraction | - |
| dc.title | The visible light degradation activity and the photocatalytic mechanism of tetra (4-carboxyphenyl) porphyrin sensitized TiO 2 | - |
| dc.type | Article | - |
| dc.identifier.email | Phillips, DL: phillips@hku.hk | - |
| dc.identifier.authority | Phillips, DL=rp00770 | - |
| dc.identifier.doi | 10.1016/j.materresbull.2014.06.017 | - |
| dc.identifier.scopus | eid_2-s2.0-84903278104 | - |
| dc.identifier.hkuros | 246414 | - |
| dc.identifier.volume | 57 | - |
| dc.identifier.spage | 311 | - |
| dc.identifier.epage | 319 | - |
| dc.identifier.isi | WOS:000340313400050 | - |
| dc.publisher.place | United Kingdom | - |
| dc.identifier.issnl | 0025-5408 | - |