Synthesis of PEG-modified TiO2-InVO4 nanoparticles via combustion method and photocatalytic degradation of methylene blue

초록

Polyethylene glycol (PEG) with different average molecular weights (600 and 20,000) was used as a templating reagent to synthesize PEG-modified TiO2-InVO4 nanoparticles via a simple combustion method. The effect of PEG on the synthesis of TiO2-InVO4 nanoparticles was systematically investigated by comparing the particles properties. Furthermore, the photocatalytic activity of both PEG-modified and unmodified TiO2-InVO4 nanoparticles was estimated by measuring the photocatalytic degradation of methylene blue under UV irradiation. PEG-modified TiO2-InVO4 nanoparticles showed larger specific surface area and higher UV-absorbance compared with unmodified TiO2-InVO4 nanoparticles. Consequently, PEG-modified TiO2-InVO4 nanoparticles showed enhanced photocatalytic activity. (C) 2012 Elsevier B.V. All rights reserved.

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