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Visible-light-driven Photodegradation of Commercial Dyes by the Cooperation of Co-doped TiO2Materia |
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| รหัสดีโอไอ | |
| Creator | Chakkaphan Wattanawikkam |
| Title | Visible-light-driven Photodegradation of Commercial Dyes by the Cooperation of Co-doped TiO2Materia |
| Contributor | Russameeruk Noonuruk |
| Publisher | King Mongkut's Institute of Technology Ladkrabang |
| Publication Year | 2563 |
| Journal Title | Current Applied Science and Technology |
| Journal Vol. | 20 |
| Journal No. | 1 |
| Page no. | 43-51 |
| Keyword | Co-doped TiO2, Photocatalyst, co-precipitation method |
| URL Website | https://www.tci-thaijo.org/index.php/cast |
| Website title | https://www.tci-thaijo.org/index.php |
| ISSN | 2586-9396 |
| Abstract | The Co-doped TiO2photocatalysts with variouscontents of Co were fabricated by co-precipitation method combined with calcinations at 500?C. Two different dyes of rhodamine band methylene blue were used to evaluate the photocatalytic performance of the prepared samples. The different concentration of Co has significant influence on structural, morphological, optical properties as well as photocatalytic activity of TiO2catalyst. The XRD diffraction patterns of allsamples exhibit the anatase phase. X-ray photoelectron spectroscopy technique was used to investigatethe chemical state of prepared samples. The BET measurement shows larger specific surface area of doped samples than that of pure TiO2. The incorporation of Co ions into TiO2results in the red-shift in photo-absorption of samples toward visible region. The photocatalytic activities on rhodamine b and methylene blue dyes degradation clearly show that the performance of photodegradation highly depends on the concentration of dopant contents and type of organic dyes. The Co-doped TiO2sample with3% for Co dopant concentration exhibited superior photodegradation rate under visible light illumination in both of rhodamine b and methylene blue dyes. The influences of dopant ionsand concentration on physical properties, optical absorption and photocatalytic activity on TiO2are also discussed. |
