Photocatalytic activity enhancement of Bi2WO6 nanoparticles by Gd-doping via microwave assisted method

Luc Huy Hoang*, Nguyen Dang Phu, Pham Do Chung, Peng Cheng Guo, Xiang Bai Chen, Wu-Ching Chou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Gd-doped Bi2WO6 nanoparticles were successfully prepared through microwave assisted synthesis. The incorporation of Gd3+ ions into Bi2WO6 crystallite was analyzed by X-ray diffraction, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The optical properties of the nanoparticles were characterized by UV–Vis absorption and photoluminescence spectroscopy. The photocatalytic activity of the nanoparticleswas investigated by degradation of Rhodamine B under visible-light irradiation. Our results showed that Gd-doping plays an important role for enhancing the visible light photocatalytic activity, and the enhanced photocatalytic activity of Gd-doped Bi2WO6 nanoparticles would be mainly correlated with the effective decrease of recombination rate of photogenerated electron–hole pairs.

Original languageEnglish
Pages (from-to)12191-12196
Number of pages6
JournalJournal of Materials Science: Materials in Electronics
Volume28
Issue number16
DOIs
StatePublished - 1 Aug 2017

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