Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method
© 2017 Elsevier B.V. The TiO 2 (anatase) films were prepared by sol-gel method using titanium (IV) isopropoxide (TTIP) as a precursor and polyvinylpyrrolidone (PVP) as a polymeric precursor dissolved in different alcohol solvents (methanol, ethanol, isopropanol and 1-butanol) and were heated treatm...
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th-cmuir.6653943832-400802017-09-28T03:58:32Z Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method Wiranwetchayan O. Promnopas S. Thongtem T. Chaipanich A. Thongtem S. © 2017 Elsevier B.V. The TiO 2 (anatase) films were prepared by sol-gel method using titanium (IV) isopropoxide (TTIP) as a precursor and polyvinylpyrrolidone (PVP) as a polymeric precursor dissolved in different alcohol solvents (methanol, ethanol, isopropanol and 1-butanol) and were heated treatment at 450 °C for 1 h. In this research, the alcohol solvents have significant influence on the morphology, crystalline degree and energy band gap of TiO 2 . The number of carbon, boiling point, dielectric constant and viscosity of alcohol solvents were the main factor influencing the size of TiO 2 nanoparticles. The alcohol solvent with higher boiling point and viscosity, and long length of carbon chain can lead to the smaller crystallite size. The number of carbon and viscosity of solvent and crystallite size can play the important role in the agglomeration of particles. The energy band gaps of the films determined by UV-visible spectroscopy were in the 3.00–3.30 eV range. 2017-09-28T03:58:32Z 2017-09-28T03:58:32Z Journal 02578972 2-s2.0-85026762044 10.1016/j.surfcoat.2017.07.068 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85026762044&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40080 |
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© 2017 Elsevier B.V. The TiO 2 (anatase) films were prepared by sol-gel method using titanium (IV) isopropoxide (TTIP) as a precursor and polyvinylpyrrolidone (PVP) as a polymeric precursor dissolved in different alcohol solvents (methanol, ethanol, isopropanol and 1-butanol) and were heated treatment at 450 °C for 1 h. In this research, the alcohol solvents have significant influence on the morphology, crystalline degree and energy band gap of TiO 2 . The number of carbon, boiling point, dielectric constant and viscosity of alcohol solvents were the main factor influencing the size of TiO 2 nanoparticles. The alcohol solvent with higher boiling point and viscosity, and long length of carbon chain can lead to the smaller crystallite size. The number of carbon and viscosity of solvent and crystallite size can play the important role in the agglomeration of particles. The energy band gaps of the films determined by UV-visible spectroscopy were in the 3.00–3.30 eV range. |
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author |
Wiranwetchayan O. Promnopas S. Thongtem T. Chaipanich A. Thongtem S. |
spellingShingle |
Wiranwetchayan O. Promnopas S. Thongtem T. Chaipanich A. Thongtem S. Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
author_facet |
Wiranwetchayan O. Promnopas S. Thongtem T. Chaipanich A. Thongtem S. |
author_sort |
Wiranwetchayan O. |
title |
Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
title_short |
Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
title_full |
Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
title_fullStr |
Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
title_full_unstemmed |
Effect of alcohol solvents on TiO<inf>2</inf> films prepared by sol–gel method |
title_sort |
effect of alcohol solvents on tio<inf>2</inf> films prepared by sol–gel method |
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2017 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85026762044&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40080 |
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