Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles
For the first time it is shown that N-doped SnO2 nanoparticles photocatalyze directly the polymerization of the C=C bonds of (meth)acrylates under visible light illumination. These radical polymerizations also occur when these particles are doped with Sb and when the surfaces of these particles are...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2011/106254 |
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| author | J. C. M. Brokken-Zijp O. L. J. van Asselen W. E. Kleinjan R. van de Belt G. de With |
| author_facet | J. C. M. Brokken-Zijp O. L. J. van Asselen W. E. Kleinjan R. van de Belt G. de With |
| author_sort | J. C. M. Brokken-Zijp |
| collection | DOAJ |
| description | For the first time it is shown that N-doped SnO2 nanoparticles photocatalyze directly the polymerization of the C=C bonds of (meth)acrylates under visible light illumination. These radical polymerizations also occur when these particles are doped with Sb and when the surfaces of these particles are grafted with methacrylate (MPS) groups. During irradiation with visible or UV light the position and/or intensity of the plasmon band absorption of these nanoparticles are always changed, suggesting that the polymerization starts by the transfer of an electron from the conduction band of the particle to the (meth)acrylate C=C bond. By using illumination wavelengths with a very narrow band width we determined the influence of the incident wavelength of light, the Sb- and N-doping, and the methacrylate (MPS) surface grafting on the quantum efficiencies for the initiating radical formation (Φ) and on the polymer and particle network formation. The results are explained by describing the effects of Sb-doping, N-doping, and/or methacrylate surface grafting on the band gaps, energy level distributions, and surface group reactivities of these nanoparticles. N-doped (MPS grafted) SnO2 (Sb ≥ 0%) nanoparticles are new attractive photocatalysts under visible as well as UV illumination. |
| format | Article |
| id | doaj-art-a962ab302548437bb891cc6c4655bd05 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-a962ab302548437bb891cc6c4655bd052025-02-03T05:53:47ZengWileyJournal of Nanotechnology1687-95031687-95112011-01-01201110.1155/2011/106254106254Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide NanoparticlesJ. C. M. Brokken-Zijp0O. L. J. van Asselen1W. E. Kleinjan2R. van de Belt3G. de With4Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsLaboratory of Polymer Technology, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsLaboratory of Materials and Interface Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsResearch and Development Kriya Materials Group, Kriya Materials B. V., P.O. Box 18, 6160 MD Geleen, The NetherlandsLaboratory of Materials and Interface Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsFor the first time it is shown that N-doped SnO2 nanoparticles photocatalyze directly the polymerization of the C=C bonds of (meth)acrylates under visible light illumination. These radical polymerizations also occur when these particles are doped with Sb and when the surfaces of these particles are grafted with methacrylate (MPS) groups. During irradiation with visible or UV light the position and/or intensity of the plasmon band absorption of these nanoparticles are always changed, suggesting that the polymerization starts by the transfer of an electron from the conduction band of the particle to the (meth)acrylate C=C bond. By using illumination wavelengths with a very narrow band width we determined the influence of the incident wavelength of light, the Sb- and N-doping, and the methacrylate (MPS) surface grafting on the quantum efficiencies for the initiating radical formation (Φ) and on the polymer and particle network formation. The results are explained by describing the effects of Sb-doping, N-doping, and/or methacrylate surface grafting on the band gaps, energy level distributions, and surface group reactivities of these nanoparticles. N-doped (MPS grafted) SnO2 (Sb ≥ 0%) nanoparticles are new attractive photocatalysts under visible as well as UV illumination.http://dx.doi.org/10.1155/2011/106254 |
| spellingShingle | J. C. M. Brokken-Zijp O. L. J. van Asselen W. E. Kleinjan R. van de Belt G. de With Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles Journal of Nanotechnology |
| title | Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles |
| title_full | Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles |
| title_fullStr | Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles |
| title_full_unstemmed | Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles |
| title_short | Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles |
| title_sort | photocatalytic properties of tin oxide and antimony doped tin oxide nanoparticles |
| url | http://dx.doi.org/10.1155/2011/106254 |
| work_keys_str_mv | AT jcmbrokkenzijp photocatalyticpropertiesoftinoxideandantimonydopedtinoxidenanoparticles AT oljvanasselen photocatalyticpropertiesoftinoxideandantimonydopedtinoxidenanoparticles AT wekleinjan photocatalyticpropertiesoftinoxideandantimonydopedtinoxidenanoparticles AT rvandebelt photocatalyticpropertiesoftinoxideandantimonydopedtinoxidenanoparticles AT gdewith photocatalyticpropertiesoftinoxideandantimonydopedtinoxidenanoparticles |