Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity
Mesoporous anatase TiO2 micro-nanometer composite structure was synthesized by solvothermal method at 180°C, followed by calcination at 400°C for 2 h. The as-prepared TiO2 was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and Fo...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/849062 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563198061969408 |
|---|---|
| author | Kun Liu Lianjie Zhu Tengfei Jiang Youguang Sun Hongbin Li Dejun Wang |
| author_facet | Kun Liu Lianjie Zhu Tengfei Jiang Youguang Sun Hongbin Li Dejun Wang |
| author_sort | Kun Liu |
| collection | DOAJ |
| description | Mesoporous anatase TiO2 micro-nanometer composite structure was synthesized by solvothermal method at 180°C, followed by calcination at 400°C for 2 h. The as-prepared TiO2 was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and Fourier transform infrared spectrum (FT-IR). The specific surface area and pore size distribution were obtained from N2 adsorption-desorption isotherm, and the optoelectric property of the mesoporous TiO2 was studied by UV-Vis absorption spectrum and surface photovoltage spectra (SPS). The photocatalytic activity was evaluated by photodegradation of sole rhodamine B (RhB) and sole phenol aqueous solutions under simulated sunlight irradiation and compared with that of Degussa P-25 (P25) under the same conditions. The photodegradation preference of this mesoporous TiO2 was also investigated for an RhB-phenol mixed solution. The results show that the TiO2 composite structure consists of microspheres (∼0.5–2 μm in diameter) and irregular aggregates (several hundred nanometers) with rough surfaces and the average primary particle size is 10.2 nm. The photodegradation activities of this mesoporous TiO2 on both RhB and phenol solutions are higher than those of P25. Moreover, this as-prepared TiO2 exhibits photodegradation preference on RhB in the RhB-phenol mixture solution. |
| format | Article |
| id | doaj-art-061dd45ac40843c8956afffae6fb355e |
| 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-061dd45ac40843c8956afffae6fb355e2025-02-03T01:20:44ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/849062849062Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic SelectivityKun Liu0Lianjie Zhu1Tengfei Jiang2Youguang Sun3Hongbin Li4Dejun Wang5School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, ChinaSchool of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, ChinaCollege of Chemistry, Jilin University, Changchun 130023, ChinaSchool of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, ChinaSchool of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, ChinaCollege of Chemistry, Jilin University, Changchun 130023, ChinaMesoporous anatase TiO2 micro-nanometer composite structure was synthesized by solvothermal method at 180°C, followed by calcination at 400°C for 2 h. The as-prepared TiO2 was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and Fourier transform infrared spectrum (FT-IR). The specific surface area and pore size distribution were obtained from N2 adsorption-desorption isotherm, and the optoelectric property of the mesoporous TiO2 was studied by UV-Vis absorption spectrum and surface photovoltage spectra (SPS). The photocatalytic activity was evaluated by photodegradation of sole rhodamine B (RhB) and sole phenol aqueous solutions under simulated sunlight irradiation and compared with that of Degussa P-25 (P25) under the same conditions. The photodegradation preference of this mesoporous TiO2 was also investigated for an RhB-phenol mixed solution. The results show that the TiO2 composite structure consists of microspheres (∼0.5–2 μm in diameter) and irregular aggregates (several hundred nanometers) with rough surfaces and the average primary particle size is 10.2 nm. The photodegradation activities of this mesoporous TiO2 on both RhB and phenol solutions are higher than those of P25. Moreover, this as-prepared TiO2 exhibits photodegradation preference on RhB in the RhB-phenol mixture solution.http://dx.doi.org/10.1155/2012/849062 |
| spellingShingle | Kun Liu Lianjie Zhu Tengfei Jiang Youguang Sun Hongbin Li Dejun Wang Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity International Journal of Photoenergy |
| title | Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity |
| title_full | Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity |
| title_fullStr | Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity |
| title_full_unstemmed | Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity |
| title_short | Mesoporous TiO2 Micro-Nanometer Composite Structure: Synthesis, Optoelectric Properties, and Photocatalytic Selectivity |
| title_sort | mesoporous tio2 micro nanometer composite structure synthesis optoelectric properties and photocatalytic selectivity |
| url | http://dx.doi.org/10.1155/2012/849062 |
| work_keys_str_mv | AT kunliu mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity AT lianjiezhu mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity AT tengfeijiang mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity AT youguangsun mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity AT hongbinli mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity AT dejunwang mesoporoustio2micronanometercompositestructuresynthesisoptoelectricpropertiesandphotocatalyticselectivity |