Open AccessVISIBLE-LIGHT DEGRADATION OF INDIGO CARMINE USING A NOVEL MIXED METAL OXIDES/REDUCED GRAPHENE OXIDE HYBRID CATALYSTS
Author(s) -
Dang Nguyen Nha Khanh,
Nguyễn Thị Mai Thơ,
Nguyêñ Quôć Thǎńg,
Nguyễn Thành Tiên,
Chau Tan Phong,
Mai Quynh Cang,
Nguyen Thi Kim Phuong
Publication year - 2019
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/57/5/13676
Subject(s) - indigo carmine , graphene , photocatalysis , catalysis , materials science , oxide , crystallinity , visible spectrum , chemical engineering , degradation (telecommunications) , precipitation , nuclear chemistry , chemistry , nanotechnology , metallurgy , composite material , organic chemistry , optoelectronics , telecommunications , computer science , engineering , physics , meteorology
A novel ZnBi2O4/rGO hybrid catalysts had been synthesized by a simple precipitation method. The crystallinity, structural, and morphological features were studied by XRD, FE-SEM and UV-Vis diffused reflectance techniques. The photocatalytic activity of ZnBi2O4/rGO catalysts were evaluated by degradation of Indigo Carmine dye under visible-light irradiation. The enhancement of photocatalytic properties of ZnBi2O4/rGO attributed to the synergistic effect between ZnBi2O4 and rGO, which effectively separation of the photogenerated electron-hole pairs in ZnBi2O4. Moreover, the obtained ZnBi2O4/rGO displayed high chemical stability after four consecutive experiments under visible light.
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