Microwave-hydrothermal synthesis of BiOBr/Bi<inf>2</inf>WO<inf>6</inf>nanocomposites for enhanced photocatalytic performance

• Main Authors: Phattranit Dumrongrojthanath, Anukorn Phuruangrat, Khwanchanok Doungarno, Titipun Thongtem, Panudda Patiphatpanya, Somchai Thongtem
• Format: Journal
• Published: 2018
• Subjects: Chemical Engineering; Materials Science
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85051695403&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/58420
• Institution: Chiang Mai University

© 2018 Elsevier Ltd and Techna Group S.r.l. BiOBr/Bi2WO6nanocomposites were synthesized by a microwave-assisted hydrothermal method. The as-synthesized products were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy. In this research, pure tetragonal BiOBr in the shape of circular nanoplates, pure orthorhombic Bi2WO6with well-defined flake-like structure and nanocomposites of the mixed phases and morphologies were detected. Their photocatalytic performance was estimated through the degradation of rhodamine B (RhB) induced by a visible radiation of Xe lamp. The 20 wt% BiOBr/Bi2WO6nanocomposites have the best performance for photodegradation of RhB of 97.5% within 60 min and are the promising stable material for wastewater treatment.