Effect of PEG on phase, morphology and photocatalytic activity of CeVO<inf>4</inf> nanostructures

• Main Authors: Phuruangrat A., Kuntalue B., Thongtem S., Thongtem T.
• Format: Journal
• Published: 2017
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84961671381&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/41744
• Institution: Chiang Mai University

© 2016 Elsevier B.V. All rights reserved. CeVO 4 nanostructures were successfully synthesized by polyethylene glycol-assisted hydrothermal process. The products synthesized in the solutions containing 0.000-0.020 g polyethylene glycol (PEG) were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). For the use of 0.015 and 0.020 g PEG, the products were uniform and pure tetragonal CeVO 4 nanorods growing along the [001] direction. The stretching and bending modes of VO43- tetrahedrons were detected by Fourier transform infrared (FTIR) and Raman spectroscopy. Methylene blue was used as a representative dye pollutant for evaluating photocatalytic activity under UV radiation. In this research, CeVO 4 nanorods synthesized in the solution containing 0.015 g PEG showed the highest photodegradation of 98.03% and the highest apparent rate constant of 0.0128 min -1 within 300 min.