Removing dye rhodamine B from aqueous medium via wet peroxidation with V-MCM-41 and H2O2.
A new heterogeneous Fenton-like system, consisting of V-MCM-41 catalyst and hydrogen peroxide, was proved to be effective in removing recalcitrant dye Rhodamine B (RhB) in aqueous solutions. V-MCM-41 was prepared following a direct hydrothermal procedure with tetraethyl silicate and ammonium metavanadate as precursor. The mesoporous structure has been characterized by XRD, and the specific surface area was determined as x m(2) g(-1) according to BET method. The catalytic reaction can proceed in a relatively wide pH range from acidic to alkaline. And the visible light irradiation cannot promote the reaction process. In addition, the mechanism implication for V-MCM-41 as a Fenton-like catalyst has been discussed.
Wu
Deyong
D
School of Environment Science and Engineering, Shanghai Jiao Tong University, Shanghai, China. wdy001815@sjtu.edu.cn
Long
Mingce
M
Chen
Chao
C
Wu
Yahui
Y
Cai
Weimin
W
Zhou
Jiangya
J
Ding
Dawei
D
D000327:Adsorption / Q000528:radiation effects; D002384:Catalysis / Q000528:radiation effects; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration / Q000528:radiation effects; D007501:Iron / Q000737:chemistry; D008027:Light; D009584:Nitrogen / Q000737:chemistry; D010084:Oxidation-Reduction / Q000528:radiation effects; D010545:Peroxides / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry / Q000302:isolation & purification*; D012822:Silicon Dioxide / Q000737:chemistry*; D012996:Solutions; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction; D017641:Zeolites / Q000737:chemistry
C045076:Fenton's reagent; C509968:MCM-41; D010545:Peroxides; D012235:Rhodamines; D012996:Solutions; D014867:Water; D017641:Zeolites; D012822:Silicon Dioxide; D006861:Hydrogen Peroxide; D007501:Iron; C029773:rhodamine B; D009584:Nitrogen