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Copper ferrite nanoparticles supported on MIL-101/reduced graphene oxide as an efficient and recyclable sonocatalyst
- Source :
- Journal of the Taiwan Institute of Chemical Engineers. 93:674-685
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The sonocatalytic activity of a novel magnetic CuFe2O4/MIL-101/Graphene (CMG) ternary nanocomposite was studied in the removal of some organic dyes (methylene blue, rhodamine B, and methyl orange) from water by using H2O2 as a green oxidant. The CMG nanocomposite was prepared at 200 °C, through a two-step hydrothermal route. The physicochemical properties of the synthesized nanocomposite were evaluated using scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, magnetic measurements, atomic force microscopy, Brunauer–Emmett–Teller analysis and Raman microscopy. The excellent sonocatalytic activity of the CMG nanocomposite could be understood by the mechanisms of sonoluminescence and hot spots. The effects of operating parameters such as dye initial concentration, pH and catalyst dosage have also been investigated. Trapping experiments indicated that the sonodegradation of dyes was mainly achieved by hydroxyl radicals (•OH) attack in the CMG suspension. Benefiting from magnetic property of the CuFe2O4 nanoparticles, the CMG nanocomposite could be easily separated from the reaction mixture by a magnet and reused without any change in structure.
- Subjects :
- Nanocomposite
Materials science
Graphene
General Chemical Engineering
Oxide
Nanoparticle
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
law.invention
chemistry.chemical_compound
symbols.namesake
chemistry
Chemical engineering
law
Rhodamine B
Methyl orange
symbols
Fourier transform infrared spectroscopy
0210 nano-technology
Raman spectroscopy
Subjects
Details
- ISSN :
- 18761070
- Volume :
- 93
- Database :
- OpenAIRE
- Journal :
- Journal of the Taiwan Institute of Chemical Engineers
- Accession number :
- edsair.doi...........2969a4986fd1c430be44178282e1dba0