A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania
Considering the increasing demand for titania nanoparticles with controlled quality for various applications, the present work reports the up-scalable synthesis of size-controlled titanium dioxide nanocrystals with a simple and convenient thermal treatment route. Titanium dioxide nanocrystals with t...
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doaj-5b99f8af4a8b4363b9ea82331961f12b2020-11-24T21:47:57ZengMDPI AGApplied Sciences2076-34172016-10-0161029510.3390/app6100295app6100295A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline TitaniaAysar Sabah Keiteb0Elias Saion1Azmi Zakaria2Nayereh Soltani3Nura Abdullahi4Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, MalaysiaDepartment of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, MalaysiaDepartment of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, MalaysiaYoung Researchers and Elite Club, Shahr-e-Qods Branch, Islamic Azad University, Tehran 13115-37541, IranDepartment of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, MalaysiaConsidering the increasing demand for titania nanoparticles with controlled quality for various applications, the present work reports the up-scalable synthesis of size-controlled titanium dioxide nanocrystals with a simple and convenient thermal treatment route. Titanium dioxide nanocrystals with tetragonal structure were synthesized directly from an aqueous solution containing titanium (IV) isopropoxide as the main reactant, polyvinyl pyrrolidone (PVP) as the capping agent, and deionized water as a solvent. With the elimination of the drying process in a thermal treatment method, an attempt was made to decrease the synthesis time. The mixture directly underwent calcination to form titanium dioxide (TiO2) nanocrystalline powder, which was confirmed by FT-IR, energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) analysis. The control over the size and optical properties of nanocrystals was achieved via variation in calcination temperatures. The obtained average sizes from XRD spectra and transmission electron microscopy (TEM) images showed exponential variation with increasing calcination temperature. The optical properties showed a decrease in the band gap energy with increasing calcination temperature due to the enlargement of the nanoparticle size. These results prove that direct calcination of reactant solution is a convenient thermal treatment route for the potential large-scale production of size-controlled Titania nanoparticles.http://www.mdpi.com/2076-3417/6/10/295titanium dioxide (TiO2) nanoparticlesthermal treatmentX-ray diffraction (XRD)transmission electron microscopy (TEM) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aysar Sabah Keiteb Elias Saion Azmi Zakaria Nayereh Soltani Nura Abdullahi |
spellingShingle |
Aysar Sabah Keiteb Elias Saion Azmi Zakaria Nayereh Soltani Nura Abdullahi A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania Applied Sciences titanium dioxide (TiO2) nanoparticles thermal treatment X-ray diffraction (XRD) transmission electron microscopy (TEM) |
author_facet |
Aysar Sabah Keiteb Elias Saion Azmi Zakaria Nayereh Soltani Nura Abdullahi |
author_sort |
Aysar Sabah Keiteb |
title |
A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania |
title_short |
A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania |
title_full |
A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania |
title_fullStr |
A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania |
title_full_unstemmed |
A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania |
title_sort |
modified thermal treatment method for the up-scalable synthesis of size-controlled nanocrystalline titania |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2016-10-01 |
description |
Considering the increasing demand for titania nanoparticles with controlled quality for various applications, the present work reports the up-scalable synthesis of size-controlled titanium dioxide nanocrystals with a simple and convenient thermal treatment route. Titanium dioxide nanocrystals with tetragonal structure were synthesized directly from an aqueous solution containing titanium (IV) isopropoxide as the main reactant, polyvinyl pyrrolidone (PVP) as the capping agent, and deionized water as a solvent. With the elimination of the drying process in a thermal treatment method, an attempt was made to decrease the synthesis time. The mixture directly underwent calcination to form titanium dioxide (TiO2) nanocrystalline powder, which was confirmed by FT-IR, energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) analysis. The control over the size and optical properties of nanocrystals was achieved via variation in calcination temperatures. The obtained average sizes from XRD spectra and transmission electron microscopy (TEM) images showed exponential variation with increasing calcination temperature. The optical properties showed a decrease in the band gap energy with increasing calcination temperature due to the enlargement of the nanoparticle size. These results prove that direct calcination of reactant solution is a convenient thermal treatment route for the potential large-scale production of size-controlled Titania nanoparticles. |
topic |
titanium dioxide (TiO2) nanoparticles thermal treatment X-ray diffraction (XRD) transmission electron microscopy (TEM) |
url |
http://www.mdpi.com/2076-3417/6/10/295 |
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