Open AccessSynergistic effect of magnetite and carbonous materials incorporated with iron (III)-doped ZnO on the photodegradation of organic dyes
Author(s) -
M. I. Pratiwi,
Rosari Saleh
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/763/1/012060
Subject(s) - photodegradation , thermogravimetric analysis , materials science , photocatalysis , fourier transform infrared spectroscopy , magnetite , nanocomposite , catalysis , nuclear chemistry , methylene blue , phthalocyanine , chemical engineering , chemistry , organic chemistry , nanotechnology , metallurgy , engineering
Fe-doped ZnO (Fe:ZnO) was combined with both magnetite (Fe 3 O 4 ) and carbonous materials (graphene) using a co-precipitation method to form Fe:ZnO/G/Fe 3 O 4 nanocomposites with various weight ratios (1:0, 1:0.05, 1:0.1, 1:0.3, 1:0.5, and 1:1). These nanocomposites were characterized using different methods of measurements; such as Fourier transform infrared spectroscopy to record the absorption spectra of certain functional groups, X-ray diffraction spectroscopy to identify the structure of the samples, and thermogravimetric analysis to study the loss in samples’ weight under increasing temperature. The magnetite and carbonous materials were used to support Fe:ZnO in the photodegradation of methylene blue dye, as a representation of organic dyes. The photocatalytic activity was examined under ultra violet (UV) light irradiation. The effects of Fe:ZnO/G:Fe 3 O 4 ratio, scavenger addition, and catalyst dosage on the photocatalytic activity were also studied. Finally, the reusability of the catalyst was examined and proved.