Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2
This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/415136 |
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| author | Zatil Amali Che Ramli Nilofar Asim Wan N. R. W. Isahak Zeynab Emdadi Norasikin Ahmad-Ludin M. Ambar Yarmo K. Sopian |
| author_facet | Zatil Amali Che Ramli Nilofar Asim Wan N. R. W. Isahak Zeynab Emdadi Norasikin Ahmad-Ludin M. Ambar Yarmo K. Sopian |
| author_sort | Zatil Amali Che Ramli |
| collection | DOAJ |
| description | This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi prepared by in situ polymerization method, while the TiO2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g−1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples. |
| format | Article |
| id | doaj-art-3cc1fd3738574ba18f35c19059ced693 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-3cc1fd3738574ba18f35c19059ced6932025-02-03T01:33:24ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/415136415136Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2Zatil Amali Che Ramli0Nilofar Asim1Wan N. R. W. Isahak2Zeynab Emdadi3Norasikin Ahmad-Ludin4M. Ambar Yarmo5K. Sopian6Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSchool of Chemical Science & Food Technology, Faculty of Science and Technology, Universiti Kebangsan Malaysia, 43600 Bangi, Selangor, MalaysiaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSchool of Chemical Science & Food Technology, Faculty of Science and Technology, Universiti Kebangsan Malaysia, 43600 Bangi, Selangor, MalaysiaSolar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaThis study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi prepared by in situ polymerization method, while the TiO2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g−1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.http://dx.doi.org/10.1155/2014/415136 |
| spellingShingle | Zatil Amali Che Ramli Nilofar Asim Wan N. R. W. Isahak Zeynab Emdadi Norasikin Ahmad-Ludin M. Ambar Yarmo K. Sopian Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 The Scientific World Journal |
| title | Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 |
| title_full | Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 |
| title_fullStr | Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 |
| title_full_unstemmed | Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 |
| title_short | Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 |
| title_sort | photocatalytic degradation of methylene blue under uv light irradiation on prepared carbonaceous tio2 |
| url | http://dx.doi.org/10.1155/2014/415136 |
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