A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots
TiO2 nanotube arrays are well-known efficient UV-driven photocatalysts. The incorporation of graphene quantum dots could extend the photo-response of the nanotubes to the visible-light range. Graphene quantum dot-sensitized TiO2 nanotube arrays were synthesized by covalently coupling these two mater...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2014-05-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.5.81 |
| _version_ | 1817999916891373568 |
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| author | Donald K. L. Chan Po Ling Cheung Jimmy C. Yu |
| author_facet | Donald K. L. Chan Po Ling Cheung Jimmy C. Yu |
| author_sort | Donald K. L. Chan |
| collection | DOAJ |
| description | TiO2 nanotube arrays are well-known efficient UV-driven photocatalysts. The incorporation of graphene quantum dots could extend the photo-response of the nanotubes to the visible-light range. Graphene quantum dot-sensitized TiO2 nanotube arrays were synthesized by covalently coupling these two materials. The product was characterized by Fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and UV–vis absorption spectroscopy. The product exhibited high photocatalytic performance in the photodegradation of methylene blue and enhanced photocurrent under visible light irradiation. |
| first_indexed | 2024-04-14T03:15:34Z |
| format | Article |
| id | doaj.art-23baf77c37e74af59ffeae0458768bd3 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-14T03:15:34Z |
| publishDate | 2014-05-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-23baf77c37e74af59ffeae0458768bd32022-12-22T02:15:29ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862014-05-015168969510.3762/bjnano.5.812190-4286-5-81A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dotsDonald K. L. Chan0Po Ling Cheung1Jimmy C. Yu2Department of Chemistry and Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, ChinaDepartment of Chemistry and Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, ChinaDepartment of Chemistry and Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, ChinaTiO2 nanotube arrays are well-known efficient UV-driven photocatalysts. The incorporation of graphene quantum dots could extend the photo-response of the nanotubes to the visible-light range. Graphene quantum dot-sensitized TiO2 nanotube arrays were synthesized by covalently coupling these two materials. The product was characterized by Fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and UV–vis absorption spectroscopy. The product exhibited high photocatalytic performance in the photodegradation of methylene blue and enhanced photocurrent under visible light irradiation.https://doi.org/10.3762/bjnano.5.81anodic oxidationgraphene quantum dotsphotocatalystphotodegradationTiO2 nanotube arrays |
| spellingShingle | Donald K. L. Chan Po Ling Cheung Jimmy C. Yu A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots Beilstein Journal of Nanotechnology anodic oxidation graphene quantum dots photocatalyst photodegradation TiO2 nanotube arrays |
| title | A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots |
| title_full | A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots |
| title_fullStr | A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots |
| title_full_unstemmed | A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots |
| title_short | A visible-light-driven composite photocatalyst of TiO2 nanotube arrays and graphene quantum dots |
| title_sort | visible light driven composite photocatalyst of tio2 nanotube arrays and graphene quantum dots |
| topic | anodic oxidation graphene quantum dots photocatalyst photodegradation TiO2 nanotube arrays |
| url | https://doi.org/10.3762/bjnano.5.81 |
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