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

• المؤلفون الرئيسيون: Akram, M., Taha, A., Butt, F. K., Awan, A. S., Hussain, R.
• التنسيق: مقال
• منشور في: Springer New York LLC 2017
• الموضوعات: QD Chemistry
• الوصول للمادة أونلاين: http://eprints.utm.my/id/eprint/76475/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85017422359&doi=10.1007%2fs10854-017-6817-6&partnerID=40&md5=ef2b2fdb060b384ce2a3a18ca5e259c1

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.