High Photocatalytic Activity of Oliver-Like BiVO4 for Rhodamine B Degradation under Visible Light Irradiation
Ngày
2018-02-01
Tác giả
Nguyen, Huu Vinh
Tran, Van Thuan
Do, Sy Trung
Nguyen, Duy Trinh
Tên Tạp chí
Tạp chí ISSN
Nhan đề tập
Nhà xuất bản
Trường Đại học Nguyễn Tất Thành
Giấy phép
Tóm tắt
Report the facial synthesis of BiVO4 crystals with different morphologies by the solvothermal and hydrothermal process. The phase structure and morphology as-synthesized samples were characterized by XRD, FE-SEM, and UV-vis DRS spectroscopy. We also investigated the photocatalytic activity of BiVO4 for the decomposition of rhodamine B (RhB) under visible light irradiation. The results showed that oliver-like BiVO4 was obtained when using the mixed solvent of ethylene glycol and water while starflower-like BiVO4 was obtained using the mixed solvent of ethylene glycol monomethyl ether and water. The hydrothermal evolution process the BiVO4 product with a rod-like morphology. Oliver-like BiVO4 with pure monoclinic scheelite phase and high specific surface area exhibits efficient photodegradation of RhB (k = 7.82x10-3 min-1).
Mô tả
5 tr.
Từ khóa
BiVO4 crystals , Solvent-driven synthesis , Photocatalytic activity