TY - JOUR
AU - Da’na, Enshirah
AB - In this work, a magnetic Fe3O4 photocatalyst supported on mesoporous silica (SiO2) and combined with chlorophyll was developed to give a large surface area and a bifunctional property to the Fe3O4 nanocomposite. The as-synthesized Fe3O4/SiO2 and chlorophyll coated Fe3O4/SiO2 nanocomposites were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and UV–visible spectroscopy (UV–Vis). The XRD patterns of SiO2 nanoparticles indicated an amorphous structure, while the SiO2/Fe3O4 patterns showed five characteristic peaks, which confirm a highly crystalline SiO2/Fe3O4 nanoparticles with cubic spinel structures with a particle size of around 10 nm. The SEM images confirmed the successful coating of Fe3O4 on the amorphous surface of silica. It also showed spherical SiO2 nanoparticles within 200–400 nm and spherical Fe3O4 nanoparticles with small crystallite aggregates. The FTIR spectra of SiO2/Fe3O4/Chl confirmed the existence of a chlorophyll layer around the SiO2/Fe3O4 nanoparticles. The photocatalytic efficiency of the prepared nanocomposite has been tested for the degradation of 2,4-dinitrophenol (DNP) and methyl orange (MO) under visible light irradiation. The obtained results showed 76.3% and 80% degradation of DNP and MO, respectively in 150 min.
TI - Synthesis of porous chlorophyll coated SiO2/Fe3O4 nanocomposites for the photocatalytic degradation of organic pollutants
JF - "Reaction Kinetics, Mechanisms and Catalysis"
DO - 10.1007/s11144-021-02128-z
DA - 2022-02-01
UR - https://www.deepdyve.com/lp/springer-journals/synthesis-of-porous-chlorophyll-coated-sio2-fe3o4-nanocomposites-for-Eb4NGckGV0
SP - 555
EP - 570
VL - 135
IS - 1
DP - DeepDyve
ER -