Construction of TiO2 microsphere through different titanium precursors via a green pathway
TiO2 microspheres (TMCS) with superior dispersity and uniform particle size (size distribution vary from 1 µm to 3 µm) were synthesized by using of different titanium precursors through a sol–gel method. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) were employed to s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715622003836 |
| _version_ | 1811198945276198912 |
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| author | Lin Guo Huimin Gao Kecheng Liu Yanhua Ding Xin Li Haiquan Xie |
| author_facet | Lin Guo Huimin Gao Kecheng Liu Yanhua Ding Xin Li Haiquan Xie |
| author_sort | Lin Guo |
| collection | DOAJ |
| description | TiO2 microspheres (TMCS) with superior dispersity and uniform particle size (size distribution vary from 1 µm to 3 µm) were synthesized by using of different titanium precursors through a sol–gel method. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) were employed to study the morphology and microstructure. Moreover, by Brunauer-Emmett-Teller (BET) test, the specific surface area of TMCS were about 200 m2/g. In addition, Raman spectroscopy (Raman), X-ray diffraction (XRD) and X–ray photo-electron spectroscopy (XPS) were applied to investigate the phase composition and existing state of TMCS. Furthermore, its photocatalytic activity was estimated by observing the degradation efficiency of Rhodamine (RhB). Remarkably, the degradation efficiency is 98 % after 30 min and the photocatalytic degradation rate remained almost unchanged in five successive cycles, indicating that TMCS were stable and suitable for removing RhB in water. Finally, the probable formation mechanism of TMCS was studied. The spontaneous aggregation of TiO2 nanoparticles lead to the formation of TMCS which would be promoted to combine with others to form mesoporous TMCS by temperature. Therefore, this work provides an encouraging pathway for controlling the morphology of TiO2 and showing potential application in wastewater treatment. |
| first_indexed | 2024-04-12T01:39:47Z |
| format | Article |
| id | doaj.art-9c26b39f5dc64599a4e0ee9ca5fc84ca |
| institution | Directory Open Access Journal |
| issn | 2211-7156 |
| language | English |
| last_indexed | 2024-04-12T01:39:47Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj.art-9c26b39f5dc64599a4e0ee9ca5fc84ca2022-12-22T03:53:13ZengElsevierResults in Chemistry2211-71562022-01-014100664Construction of TiO2 microsphere through different titanium precursors via a green pathwayLin Guo0Huimin Gao1Kecheng Liu2Yanhua Ding3Xin Li4Haiquan Xie5Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, PR China; Corresponding author.College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, PR ChinaCollege of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, PR ChinaEngineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, PR ChinaEngineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, PR ChinaEngineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, PR ChinaTiO2 microspheres (TMCS) with superior dispersity and uniform particle size (size distribution vary from 1 µm to 3 µm) were synthesized by using of different titanium precursors through a sol–gel method. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) were employed to study the morphology and microstructure. Moreover, by Brunauer-Emmett-Teller (BET) test, the specific surface area of TMCS were about 200 m2/g. In addition, Raman spectroscopy (Raman), X-ray diffraction (XRD) and X–ray photo-electron spectroscopy (XPS) were applied to investigate the phase composition and existing state of TMCS. Furthermore, its photocatalytic activity was estimated by observing the degradation efficiency of Rhodamine (RhB). Remarkably, the degradation efficiency is 98 % after 30 min and the photocatalytic degradation rate remained almost unchanged in five successive cycles, indicating that TMCS were stable and suitable for removing RhB in water. Finally, the probable formation mechanism of TMCS was studied. The spontaneous aggregation of TiO2 nanoparticles lead to the formation of TMCS which would be promoted to combine with others to form mesoporous TMCS by temperature. Therefore, this work provides an encouraging pathway for controlling the morphology of TiO2 and showing potential application in wastewater treatment.http://www.sciencedirect.com/science/article/pii/S2211715622003836Titanium dioxideMicrosphereDyePhotocatalysis |
| spellingShingle | Lin Guo Huimin Gao Kecheng Liu Yanhua Ding Xin Li Haiquan Xie Construction of TiO2 microsphere through different titanium precursors via a green pathway Results in Chemistry Titanium dioxide Microsphere Dye Photocatalysis |
| title | Construction of TiO2 microsphere through different titanium precursors via a green pathway |
| title_full | Construction of TiO2 microsphere through different titanium precursors via a green pathway |
| title_fullStr | Construction of TiO2 microsphere through different titanium precursors via a green pathway |
| title_full_unstemmed | Construction of TiO2 microsphere through different titanium precursors via a green pathway |
| title_short | Construction of TiO2 microsphere through different titanium precursors via a green pathway |
| title_sort | construction of tio2 microsphere through different titanium precursors via a green pathway |
| topic | Titanium dioxide Microsphere Dye Photocatalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2211715622003836 |
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