Leyla Rahmani - Academia.edu (original) (raw)
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Papers by Leyla Rahmani
In this research, the chemical recycling of terephthalic acid from PET waste by using nano Fe 3 O... more In this research, the chemical recycling of terephthalic acid from PET waste by using nano Fe 3 O 4 @Py-APTS as solid support was reported. The performance of organically modified nano magnetic was examined in detail and the results were compared with unsupported reactions as the model. By using the solid support, the required time for complete glycolysis, consumption of solvent and catalyst, decreased up 95 %, 37.5 % and 30 % respectively. Results showed that nano Fe 3 O 4 @Py-APTS delivered good performance as the reagent as well as the solid support in depolymerizing of PET to the terephthalic acid.
In this report, magnetic iron oxide nanoparticles were synthesized via coprecipitation of Fe2+ an... more In this report, magnetic iron oxide nanoparticles were synthesized via coprecipitation of Fe2+ and
Fe3+ with ammonium hydroxide, and the surface of synthesized nanoparticles was organically
functionalized by commercially available amine coupling agent namely, 3-aminopropyl
trimethoxysilane (APTS) by using well-known sol–gel method. Further reaction of the synthesized
Fe3O4@APTS core-shell magnetite nanoparticles with 2-Chloropyridine via nucleophilic aromatic
mechanism in position 2 led to the target molecule Fe3O4@APTS/ 2-Chloropyridine. All prepared
materials e.g the magnetite iron oxide, Fe3O4@APTS nanoparticles as well as organically coated
Fe3O4@APTS/ 2-Chloropyridine magnetite particles were characterized using Fourier transforms
infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and thermogravimetric analysis
(TGA). SEM images showed that the Fe3O4@APTS/ 2-Chloropyridine nanoparticles were roughly
spherical with average size of 45-55 nm. FTIR indicated the formation of a layer of APTS-Py on the
surface of the Fe3O4 magnetite core. Thermogravimetric analysis of the coated APTS-Py on the Fe3O4
surface revealed that 8 % of organic materials coated on iron oxide nanoparticles.
In this research, the chemical recycling of terephthalic acid from PET waste by using nano Fe 3 O... more In this research, the chemical recycling of terephthalic acid from PET waste by using nano Fe 3 O 4 @Py-APTS as solid support was reported. The performance of organically modified nano magnetic was examined in detail and the results were compared with unsupported reactions as the model. By using the solid support, the required time for complete glycolysis, consumption of solvent and catalyst, decreased up 95 %, 37.5 % and 30 % respectively. Results showed that nano Fe 3 O 4 @Py-APTS delivered good performance as the reagent as well as the solid support in depolymerizing of PET to the terephthalic acid.
In this report, magnetic iron oxide nanoparticles were synthesized via coprecipitation of Fe2+ an... more In this report, magnetic iron oxide nanoparticles were synthesized via coprecipitation of Fe2+ and
Fe3+ with ammonium hydroxide, and the surface of synthesized nanoparticles was organically
functionalized by commercially available amine coupling agent namely, 3-aminopropyl
trimethoxysilane (APTS) by using well-known sol–gel method. Further reaction of the synthesized
Fe3O4@APTS core-shell magnetite nanoparticles with 2-Chloropyridine via nucleophilic aromatic
mechanism in position 2 led to the target molecule Fe3O4@APTS/ 2-Chloropyridine. All prepared
materials e.g the magnetite iron oxide, Fe3O4@APTS nanoparticles as well as organically coated
Fe3O4@APTS/ 2-Chloropyridine magnetite particles were characterized using Fourier transforms
infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and thermogravimetric analysis
(TGA). SEM images showed that the Fe3O4@APTS/ 2-Chloropyridine nanoparticles were roughly
spherical with average size of 45-55 nm. FTIR indicated the formation of a layer of APTS-Py on the
surface of the Fe3O4 magnetite core. Thermogravimetric analysis of the coated APTS-Py on the Fe3O4
surface revealed that 8 % of organic materials coated on iron oxide nanoparticles.