Synthesis of the BIVO4 nanoparticle as an efficient photocatalyst to activate hydrogen peroxide for the degradation of methylene blue under visible light irradiation

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Pham, P.T.D.^1^2 ; Bui, P.Q.T.^2 ; Nong, L.X.^1 ; Nguyen, V.H.^1 ; Bach, L.G.^1 ; Vu, H.T.^3 ; Nguyen, H.T.^4 ; Nguyen, T.D.^1

NTT Hi-Tech Institute, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh Street, District 4, Ho Chi Minh City, Viet Nam^1

Faculty of Chemical Technology, Ho Chi Minh City University of Food Industry, 140 Le Trong Tan Street, Tan Phu District, Ho Chi Minh City, Viet Nam^2

Faculty of Hydro-Meteorology, HCMC University of Natural Resources and Environment, Le Van Sy Street, Tan Binh District, Ho Chi Minh City, Viet Nam^3

Son la Hydro Power Company, No 56 Lo Van Gia Street Chieng Le Ward, Son La Province, Viet Nam^4

关键词: Accelerated degradation;    Decomposition rate;    Electrons and holes;    External electrons;    Hydrothermal methods;    Initial concentration;    Methylene Blue;    Visible-light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012036/pdf
DOI  :  10.1088/1757-899X/479/1/012036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, we investigated the synthesis of BiVO4 nanoparticles via the hydrothermal method and their photocatalytic activity for the degradation of methylene blue (MB) under LED visible light mediated by H2O2. The obtained BiVO4 catalyst was characterized by XRD, Raman, SEM, and UV-vis DRS. The effect of H2O2 concentrate, pH, and MB initial concentration on the removal rate of MB was carefully studied. The results showed that MB was decolorized entirely after 30 min in the BiVO4/H2O2/Vis process whereas the decomposition rate of BiVO4 with the absence of H2O2 is 78% after 60 min. The accelerated degradation of MB by in the BiVO4/H2O2/Vis process is due to H2O2 acts as the external electron acceptor, which could promote the separation of photo-induced electrons and holes.