Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light
The design and development of second-generation titanium oxide photocatalysts which absorb UV-visible light and work as efficient photocatalysts under irradiation of light in the UV-visible light regions were successfuly carriedout by applying advancedmetal ion-implantation techniques. Titanium oxid...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X01000101 |
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| _version_ | 1832567991384932352 |
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| author | Masakazu Anpo Masato Takeuchi |
| author_facet | Masakazu Anpo Masato Takeuchi |
| author_sort | Masakazu Anpo |
| collection | DOAJ |
| description | The design and development of second-generation titanium oxide photocatalysts which absorb
UV-visible light and work as efficient photocatalysts under irradiation of light in the UV-visible light
regions were successfuly carriedout by applying advancedmetal ion-implantation techniques. Titanium oxide
catalysts were implanted with various transition-metal ions by a high-voltage acceleration technique,
then calcined in O2 at around 723–823 K to produce photocatalysts capable of absorbing visible light, the
extent of such redshift depending on the kind and amount of metal ion implanted. The transition-metal ion implanted titanium
oxide photocatalysts, specifically using V, Mn, or Cr ions, were successful in carring out
various photocatalytic reactions such as the decomposition of NOX and the reaction involving the decomposition of H2O at 295 K, significantly under irradiation with visible light longer than 450 nm. In outdoor field
reactivity tests, these V or Cr ion-implanted titanium oxide photocatalysts showed four to three times higher
photocatalytic reactivity for those photocatalytic reactions under solar beam irradiation, as compared with
the original unimplanted titanium oxide photocatalyst. The advantages and possibilities of utilizing such
second-generation titanium oxide photocatalysts are the only way to address environmental pollution on a
large andglobal scale. |
| format | Article |
| id | doaj-art-40473dc85a0e4451ae3efec27a269afe |
| institution | Kabale University |
| issn | 1110-662X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-40473dc85a0e4451ae3efec27a269afe2025-02-03T00:59:55ZengWileyInternational Journal of Photoenergy1110-662X2001-01-0132899410.1155/S1110662X01000101Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible lightMasakazu Anpo0Masato Takeuchi1Department of Applied Chemistry, Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Sakai, Osaka 599-8531, JapanDepartment of Applied Chemistry, Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Sakai, Osaka 599-8531, JapanThe design and development of second-generation titanium oxide photocatalysts which absorb UV-visible light and work as efficient photocatalysts under irradiation of light in the UV-visible light regions were successfuly carriedout by applying advancedmetal ion-implantation techniques. Titanium oxide catalysts were implanted with various transition-metal ions by a high-voltage acceleration technique, then calcined in O2 at around 723–823 K to produce photocatalysts capable of absorbing visible light, the extent of such redshift depending on the kind and amount of metal ion implanted. The transition-metal ion implanted titanium oxide photocatalysts, specifically using V, Mn, or Cr ions, were successful in carring out various photocatalytic reactions such as the decomposition of NOX and the reaction involving the decomposition of H2O at 295 K, significantly under irradiation with visible light longer than 450 nm. In outdoor field reactivity tests, these V or Cr ion-implanted titanium oxide photocatalysts showed four to three times higher photocatalytic reactivity for those photocatalytic reactions under solar beam irradiation, as compared with the original unimplanted titanium oxide photocatalyst. The advantages and possibilities of utilizing such second-generation titanium oxide photocatalysts are the only way to address environmental pollution on a large andglobal scale.http://dx.doi.org/10.1155/S1110662X01000101 |
| spellingShingle | Masakazu Anpo Masato Takeuchi Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light International Journal of Photoenergy |
| title | Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light |
| title_full | Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light |
| title_fullStr | Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light |
| title_full_unstemmed | Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light |
| title_short | Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light |
| title_sort | design and development of second generation titanium oxide photocatalysts to better our environment approaches in realizing the use of visible light |
| url | http://dx.doi.org/10.1155/S1110662X01000101 |
| work_keys_str_mv | AT masakazuanpo designanddevelopmentofsecondgenerationtitaniumoxidephotocatalyststobetterourenvironmentapproachesinrealizingtheuseofvisiblelight AT masatotakeuchi designanddevelopmentofsecondgenerationtitaniumoxidephotocatalyststobetterourenvironmentapproachesinrealizingtheuseofvisiblelight |