Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide
Nanocrystalline titanium dioxide (TiO2) was synthesized in microemulsions by using cetyltrimethylammonium bromide (CTAB) as surfactant. In order to investigate the crystal transformation and photoactivity at low temperature, the as-prepared precipitates were aged at 65°C or calcined at various tempe...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/702503 |
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| author | Zhang Liu Zicong Jian Jianzhang Fang Xiaoxin Xu Ximiao Zhu Shuxing Wu |
| author_facet | Zhang Liu Zicong Jian Jianzhang Fang Xiaoxin Xu Ximiao Zhu Shuxing Wu |
| author_sort | Zhang Liu |
| collection | DOAJ |
| description | Nanocrystalline titanium dioxide (TiO2) was synthesized in microemulsions by using cetyltrimethylammonium bromide (CTAB) as surfactant. In order to investigate the crystal transformation and photoactivity at low temperature, the as-prepared precipitates were aged at 65°C or calcined at various temperatures. Analyses using powder X-ray diffraction (XRD) and Fourier transform infrared microscopy (FT-IR) showed that precursors without aging or calcination were noncrystal and adsorbed by surfactant. After aging for 6 h, the amorphous TiO2 began to change into anatase. The obtained catalysts, which were synthesized in microemulsions with weight ratios of n-hexanol/CTAB/water as 6 : 3 : 1 and calcined at 500°C, presented the highest photocatalytic degradation rate on methyl orange (MO), while the catalysts, which were aged at 65°C for 90 h, also exhibited an outstanding photocatalytic performance and a little higher than that of the commercial titania photocatalyst Degussa P25. |
| format | Article |
| id | doaj-art-1da337b5e3fe4c1b85dd23e49d5f2145 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-1da337b5e3fe4c1b85dd23e49d5f21452025-02-03T01:02:52ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/702503702503Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium DioxideZhang Liu0Zicong Jian1Jianzhang Fang2Xiaoxin Xu3Ximiao Zhu4Shuxing Wu5School of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Environment, South China University of Technology, Guangzhou 510640, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaNanocrystalline titanium dioxide (TiO2) was synthesized in microemulsions by using cetyltrimethylammonium bromide (CTAB) as surfactant. In order to investigate the crystal transformation and photoactivity at low temperature, the as-prepared precipitates were aged at 65°C or calcined at various temperatures. Analyses using powder X-ray diffraction (XRD) and Fourier transform infrared microscopy (FT-IR) showed that precursors without aging or calcination were noncrystal and adsorbed by surfactant. After aging for 6 h, the amorphous TiO2 began to change into anatase. The obtained catalysts, which were synthesized in microemulsions with weight ratios of n-hexanol/CTAB/water as 6 : 3 : 1 and calcined at 500°C, presented the highest photocatalytic degradation rate on methyl orange (MO), while the catalysts, which were aged at 65°C for 90 h, also exhibited an outstanding photocatalytic performance and a little higher than that of the commercial titania photocatalyst Degussa P25.http://dx.doi.org/10.1155/2012/702503 |
| spellingShingle | Zhang Liu Zicong Jian Jianzhang Fang Xiaoxin Xu Ximiao Zhu Shuxing Wu Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide International Journal of Photoenergy |
| title | Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide |
| title_full | Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide |
| title_fullStr | Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide |
| title_full_unstemmed | Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide |
| title_short | Low-Temperature Reverse Microemulsion Synthesis, Characterization, and Photocatalytic Performance of Nanocrystalline Titanium Dioxide |
| title_sort | low temperature reverse microemulsion synthesis characterization and photocatalytic performance of nanocrystalline titanium dioxide |
| url | http://dx.doi.org/10.1155/2012/702503 |
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