Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder
TiO2 nanopowder is prepared by simple sol-gel method using starting material as titanium isopropoxide with methanol and annealed at 600°C, 700°C and 800°C for 1 hour in air. X-ray diffraction pattern revealed the presence of both anatase and rutile phase in TiO2 specimens annealed at different tempe...
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| Format: | Article |
| Language: | English |
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Nanoscience and Nanotechnology Research Center, University of Kashan
2017-04-01
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| Series: | Journal of Nanostructures |
| Subjects: | |
| Online Access: | http://jns.kashanu.ac.ir/article_46704_a5714fed0673ad7e9855413a73135684.pdf |
| _version_ | 1818842695607517184 |
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| author | Shubhra Mathur Mamta Arya Rohit Jain Suman Kumar Sharma |
| author_facet | Shubhra Mathur Mamta Arya Rohit Jain Suman Kumar Sharma |
| author_sort | Shubhra Mathur |
| collection | DOAJ |
| description | TiO2 nanopowder is prepared by simple sol-gel method using starting material as titanium isopropoxide with methanol and annealed at 600°C, 700°C and 800°C for 1 hour in air. X-ray diffraction pattern revealed the presence of both anatase and rutile phase in TiO2 specimens annealed at different temperatures. It is observed that the content of rutile phase and crystallite size increases with increase in annealing temperature. Scanning electron microscopy (SEM) is used to study surface morphology of TiO2 specimens annealed at different temperatures. Using Tauc plot it is observed that energy band gap decreases with increase in annealing temperature. I-V curve of TiO2 specimen shows that current increases with increase in annealing temperature. The preparation method is optimized by changing the concentration of titanium isopropoxide which leads to mixed phase (anatase and rutile) TiO2 nanopowder with a lower energy band gap value which may play an important role in gas sensing applications. |
| first_indexed | 2024-12-19T04:46:04Z |
| format | Article |
| id | doaj.art-85af2c6459ce4eb18ac1613b91735b1f |
| institution | Directory Open Access Journal |
| issn | 2251-7871 2251-788X |
| language | English |
| last_indexed | 2024-12-19T04:46:04Z |
| publishDate | 2017-04-01 |
| publisher | Nanoscience and Nanotechnology Research Center, University of Kashan |
| record_format | Article |
| series | Journal of Nanostructures |
| spelling | doaj.art-85af2c6459ce4eb18ac1613b91735b1f2022-12-21T20:35:29ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2017-04-017212112610.22052/jns.2017.02.00546704Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 NanopowderShubhra Mathur0Mamta Arya1Rohit Jain2Suman Kumar Sharma3Department of Physics, Jagannath Gupta Institute of Engineering & Technology, Sitapura Industrial Area, Jaipur, 302022, IndiaDepartment of Physics, Jagannath Gupta Institute of Engineering & Technology, Sitapura Industrial Area, Jaipur, 302022, IndiaDepartment of Physics, Jagannath Gupta Institute of Engineering & Technology, Sitapura Industrial Area, Jaipur, 302022, IndiaDepartment of Physics, Malaviya National Institute of Technology, JLN Marg, Jaipur, 302017, IndiaTiO2 nanopowder is prepared by simple sol-gel method using starting material as titanium isopropoxide with methanol and annealed at 600°C, 700°C and 800°C for 1 hour in air. X-ray diffraction pattern revealed the presence of both anatase and rutile phase in TiO2 specimens annealed at different temperatures. It is observed that the content of rutile phase and crystallite size increases with increase in annealing temperature. Scanning electron microscopy (SEM) is used to study surface morphology of TiO2 specimens annealed at different temperatures. Using Tauc plot it is observed that energy band gap decreases with increase in annealing temperature. I-V curve of TiO2 specimen shows that current increases with increase in annealing temperature. The preparation method is optimized by changing the concentration of titanium isopropoxide which leads to mixed phase (anatase and rutile) TiO2 nanopowder with a lower energy band gap value which may play an important role in gas sensing applications.http://jns.kashanu.ac.ir/article_46704_a5714fed0673ad7e9855413a73135684.pdfannealingband gaptitaniumx-ray diffraction |
| spellingShingle | Shubhra Mathur Mamta Arya Rohit Jain Suman Kumar Sharma Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder Journal of Nanostructures annealing band gap titanium x-ray diffraction |
| title | Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder |
| title_full | Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder |
| title_fullStr | Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder |
| title_full_unstemmed | Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder |
| title_short | Effect of Annealing Temperature on Structural, Electrical and Optical Properties of TiO2 Nanopowder |
| title_sort | effect of annealing temperature on structural electrical and optical properties of tio2 nanopowder |
| topic | annealing band gap titanium x-ray diffraction |
| url | http://jns.kashanu.ac.ir/article_46704_a5714fed0673ad7e9855413a73135684.pdf |
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