Biotemplate Synthesis and Photocatalytic Property of Mesoporous Iron Phosphomolybdate Supported on Silica
YUE Lin
YANG Qin
HAN Yipeng
LUO Xiao
LIAN Jing
SUN Wenhui
Abstract：With iron phosphomolybdate and camellia pollen grains as active components and biotemplates respectively,iron phosphomolybdate supported on silica (FePMo12/SiO2) composite with hollow micro ellipsoid structure was fabricated by a biotemplate synthesis and an improved sol-gel process.Physicochemical properties of the as-prepared samples were characterized in details by scanning electron microscopy (SEM),X-ray diffraction analysis (XRD) and nitrogen adsorption-desorption isotherm.Results indicate that the sample FePMo12/SiO2 has a similar shape with the pollen grains,which maintains the ellipsoidal shape.The value of the Brunauer-Emmett-Teller (BET) surface area is as high as 115.95 m2/g,which is due to the hollow ellipsoidal structure and the wide pore diameter distribution.FePMo12/SiO2 has an excellent photocatalytic activity to degrade the Acid Red 3R solution (AR3R).The results demonstrate that when the initial concentration of AR3R is 100 mg/L,the pH is 3.0 and the catalyst dosage is 0.3 g/L,the degradation rate of AR3R is as high as 88.6％ after simulated natural light irradiation for 75 min.FePMo12/SiO2 composite exhibits the high photocatalytic reusability and stability.
Keywords：biotemplatephotocatalysisiron phosphomolybdateAcid Red 3Rpollen
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 115-119 )