Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process [PDF]
آب و فاضلاب, 2021 Dyes are one of the most important industrial environmental pollutants, and therefore their removal from industrial wastewater is very important. The malachite green is a very toxic dye for the environment and humans, therefore an economical and high ...
Reza Abdollahi +2 more
doaj +1 more source
A New Spectrophotometric Method for Determination of Tartrazine in Saffron Samples Based on Modified Magnetic Graphene Oxide Nanocomposite [PDF]
Pizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2021 Quality control in agricultural products has always been noticed. In the present study, a new pre-concentration technique for the determination of Tartrazine (TZ) in saffron samples by employing Fe3O4/Graphene oxide-COOH as an adsorbent is presented ...
Ebrahim Fooladi +3 more
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A Review of Structure, Properties, and Chemical Synthesis of Magnetite Nanoparticles [PDF]
Journal of Applied Sciences and Nanotechnology, 2023 Extensive studies were devoted to iron oxide nanoparticles (IONPs), in recent years. Iron oxides are chemical compounds that have various polymorphic forms, including maghemite (γ-Fe2O3), magnetite (Fe3O4), and Hematite (α-Fe2O3).
Nwar Yousif +3 more
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Functionalization of Fe3O4 nanoparticles with propylaminopyridine and its use as an efficient catalyst in the synthesis of novel 4,8-dihydro-1H-pyrimido[1,2-a]pyrimidines [PDF]
شیمی کاربردی روز, 2022 In this study, at first, 2-amino-1,4-dihydropyrimidine was synthesized by the reaction of guanidine hydrochloride, 4-methybenzaldehyde and ethyl benzoylacetate in the presence of sodium hydrogencarbonate as catalyst.
Hassan Kefayati +2 more
doaj +1 more source
Investigating The Effect of Magnetite (Fe3O4) Nanoparticles on Mechanical Properties of Epoxy Resin [PDF]
Engineering and Technology Journal, 2021 In this paper, study the effects of magnetite nanomaterial Fe3O4 on the mechanical properties of epoxy. Dispersion of Fe3O4 nanoparticles in the epoxy resin was performed by ultrasonication.
Ehab Kaadhm +2 more
doaj +1 more source
Ternary biogenic silica/magnetite/graphene oxide composite for the hyperactivation of Candida rugosa lipase in the esterification production of ethyl valerate [PDF]
, 2021 Oil palm leaves (OPL) silica (SiO2) can replace the energy-intensive, commercially produced SiO2. Moreover, the agronomically sourced biogenic SiO2 is more biocompatible and cost-effective enzyme support, which properties could be improved by the ...
Abdul Wahab, Roswanira +2 more
core +1 more source
Magnetoresistance of Fe3O4-graphene-Fe3O4 junctions [PDF]
Applied Physics Letters, 2011 The magnetoresistance (MR) of Fe3O4-graphene-Fe3O4 junctions has been experimentally studied at different temperatures. It is found that a barrier exists at the Fe3O4/graphene interface. The existence of the interfacial barrier was further confirmed by the nonlinear I-V characteristics and nonmetallic temperature dependence of the interfacial ...
Zhi-Min Liao +6 more
openaire +3 more sources
COMPARATIVE INVESTIGATION OF Fe3O4, Fe3O4@HA AND Fe3O4@AC NANOPARTICLES ON DYES ADSORPTION
Environmental Engineering and Management Journal, 2022 In this study, the removal of Methylene Blue (MB) and Methyl Orange (MO) dyestuffs from aqueous solutions via adsorption by using magnetic nanoparticles of Fe3O4, Fe3O4@HA and Fe3O4@AC synthesized under laboratory conditions was investigated. The synthesized magnetic nanoparticles were characterized by SEM, EDX, XRD, BET surface area, FTIR, average ...
Kaykıoğlu, Gül +4 more
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Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles [PDF]
Cerâmica, 2021 Abstract Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4 nanoparticles were synthesized by a co-precipitation method and functionalization was performed in further stages.
M. L. D. C. Silveira +2 more
openaire +5 more sources
The Structural and Optical Properties of Nanocrystalline Fe3O4 Thin Films Prepared by PLD [PDF]
Engineering and Technology Journal, 2022 In this study, thin films of pure iron oxide (Fe3O4) were prepared using pulsedlaser deposition technique under vacuum (2×10-3 mbar) using Nd: YAG laser atdifferent laser energies (700, 800, 900, and 1000 mJ) on quartz slides at thesubstrate temperature ...
Khalid Abdulkareem +2 more
doaj +1 more source