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Effect of reactant concentration on the physicochemical properties of nanosized titania synthesized by microwave-assisted continuous flow method

Akram, M. and Taha, A. and Butt, F. K. and Awan, A. S. and Hussain, R. (2017) Effect of reactant concentration on the physicochemical properties of nanosized titania synthesized by microwave-assisted continuous flow method. Journal of Materials Science: Materials in Electronics, 28 (14). pp. 10449-10456. ISSN 0957-4522

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Abstract

Nanosized Titania was prepared through a microwave assisted continuous flow method. Initially, the samples were characterized by XRD, TEM, BET, FTIR, UV–Visible and photoluminescence (PL) spectroscopy. Then the effect of titanium-n-butaoxide (TBO, Ti4+ precursor) concentration on the physicochemical of Titania was investigated. X-ray diffraction spectra confirmed the formation of phase pure anatase phase of TiO2 with particle size of 5.87 nm. TEM images showed a slight transformation in the particle size but no substantial alteration in the particle morphology was observed. The optical bandgap studies revealed a red shift for TiO2 in this work. PL spectroscopy indicated a decrease in the surface defects. The size of the particles showed an enhancement to 8.31 nm from 5.87 nm while surface area measurements revealed a reduction to 191.65 from 289.17 m2g−1 on increasing the TBO concentration from 37 to 150 mmol. We perceive that TiO2 synthesised in this study may be a potential source for sensing and have optoelectronic applications.

Item Type:Article
Uncontrolled Keywords:Photoluminescence spectroscopy, Surface defects
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:76475
Deposited By: Fazli Masari
Deposited On:31 May 2018 09:21
Last Modified:31 May 2018 09:21

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