Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite
Nano-TiO2 showed a good catalytic activity, but it is easy to agglomerate, resulting in the reduction or even complete loss of photocatalytic activity. The dispersion of TiO2 particles on porous materials was a potential solution to this problem. Diatomite has high specific surface and absorbability...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/170148 |
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| author | Ranfang Zuo Gaoxiang Du Weiwei Zhang Lianhua Liu Yanming Liu Lefu Mei Zhaohui Li |
| author_facet | Ranfang Zuo Gaoxiang Du Weiwei Zhang Lianhua Liu Yanming Liu Lefu Mei Zhaohui Li |
| author_sort | Ranfang Zuo |
| collection | DOAJ |
| description | Nano-TiO2 showed a good catalytic activity, but it is easy to agglomerate, resulting in the reduction or even complete loss of photocatalytic activity. The dispersion of TiO2 particles on porous materials was a potential solution to this problem. Diatomite has high specific surface and absorbability because of its particular shell structure. Thus, TiO2/diatomite composite, prepared by loading TiO2 on the surface of diatomite, was a good photocatalyst, through absorbing organic compounds with diatomite and degrading them with TiO2. Scanning electron microscopy (SEM), energy dispersive spectrum (EDS), X-ray diffraction (XRD), chemical analysis, and Fourier transform infrared spectrometry (FTIR) indicated that TiO2 was impregnated well on the surface of diatomite. Furthermore, TiO2/diatomite was more active than nano-TiO2 for the degradation of methylene blue (MB) in solution. MB at concentrations of 15 and 35 ppm can be completely degraded in 20 and 40 min, respectively. |
| format | Article |
| id | doaj-art-67eaf4cd94e0426f9ca59901fdb4abaf |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-67eaf4cd94e0426f9ca59901fdb4abaf2025-02-03T01:32:53ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/170148170148Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated DiatomiteRanfang Zuo0Gaoxiang Du1Weiwei Zhang2Lianhua Liu3Yanming Liu4Lefu Mei5Zhaohui Li6School of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Material Science and Technology, China University of Geosciences, Beijing 100083, ChinaGeosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USANano-TiO2 showed a good catalytic activity, but it is easy to agglomerate, resulting in the reduction or even complete loss of photocatalytic activity. The dispersion of TiO2 particles on porous materials was a potential solution to this problem. Diatomite has high specific surface and absorbability because of its particular shell structure. Thus, TiO2/diatomite composite, prepared by loading TiO2 on the surface of diatomite, was a good photocatalyst, through absorbing organic compounds with diatomite and degrading them with TiO2. Scanning electron microscopy (SEM), energy dispersive spectrum (EDS), X-ray diffraction (XRD), chemical analysis, and Fourier transform infrared spectrometry (FTIR) indicated that TiO2 was impregnated well on the surface of diatomite. Furthermore, TiO2/diatomite was more active than nano-TiO2 for the degradation of methylene blue (MB) in solution. MB at concentrations of 15 and 35 ppm can be completely degraded in 20 and 40 min, respectively.http://dx.doi.org/10.1155/2014/170148 |
| spellingShingle | Ranfang Zuo Gaoxiang Du Weiwei Zhang Lianhua Liu Yanming Liu Lefu Mei Zhaohui Li Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite Advances in Materials Science and Engineering |
| title | Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite |
| title_full | Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite |
| title_fullStr | Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite |
| title_full_unstemmed | Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite |
| title_short | Photocatalytic Degradation of Methylene Blue Using TiO2 Impregnated Diatomite |
| title_sort | photocatalytic degradation of methylene blue using tio2 impregnated diatomite |
| url | http://dx.doi.org/10.1155/2014/170148 |
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