scholarly journals An Innovative Method of Converting Ferrous Mill Scale Wastes into Superparamagnetic Nanoadsorbents for Water Decontamination

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2539
Author(s):  
Andra Mihaela Predescu ◽  
Ecaterina Matei ◽  
Andrei Constantin Berbecaru ◽  
Maria Râpă ◽  
Mirela Gabriela Sohaciu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
High Specific Surface Area ◽  
Raw Material ◽  
Oxide Nanoparticles ◽  
Mill Scale ◽  
Transmission Electron

The need to recycle and develop nanomaterials from waste, and use them in environmental applications has become increasingly imperative in recent decades. A new method to convert the mill scale, a waste of the steel industry that contains large quantity of iron and low impurities into a nanoadsorbent that has the necessary properties to be used for water purification is presented. The mill scale waste was used as raw material for iron oxide nanopowder. A thorough characterization was performed in each stage of the conversion process from the mill scale powder to magnetic nanopowder including XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), BET (Brunauer, Emmett and Teller) and magnetization properties. Iron oxide nanoparticles were approximately 5–6 nm with high specific surface area and good magnetic properties. These are the necessary properties that a magnetic nanopowder must have in order to be used as nanoadsorbents in the heavy metal removal from waters. The iron oxide nanoparticles were evaluated as adsorbents for the removal of Cu, Cd and Ni ions.

scholarly journals Synthesis and characterization of dextran-coated iron oxide nanoparticles

2018 ◽  
Vol 5 (3) ◽  
pp. 171525 ◽  
Author(s):  
Andra Mihaela Predescu ◽  
Ecaterina Matei ◽  
Andrei Constantin Berbecaru ◽  
Cristian Pantilimon ◽  
Claudia Drăgan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Quantum Interference ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Transmission Electron ◽  
Molar Weight ◽  
Co Precipitation

Synthesis and characterization of iron oxide nanoparticles coated with a large molar weight dextran for environmental applications are reported. The first experiments involved the synthesis of iron oxide nanoparticles which were coated with dextran at different concentrations. The synthesis was performed by a co-precipitation technique, while the coating of iron oxide nanoparticles was carried out in solution. The obtained nanoparticles were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction spectrometry, Fourier transform infrared spectroscopy and superconducting quantum interference device magnetometry. The results demonstrated a successful coating of iron oxide nanoparticles with large molar weight dextran, of which agglomeration tendency depended on the amount of dextran in the coating solution. SEM and TEM observations have shown that the iron oxide nanoparticles are of about 7 nm in size.

scholarly journals One step paired electrochemical synthesis of iron and iron oxide nanoparticles

2016 ◽  
Vol 34 (3) ◽  
pp. 655-658 ◽  
Author(s):  
Juliet Ordoukhanian ◽  
Hassan Karami ◽  
Azizollah Nezhadali
Keyword(s):  
Electron Microscopy ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Low Cost ◽  
Electrolytic Cell ◽  
Oxide Nanoparticles ◽  
Transmission Electron ◽  
One Step ◽  
Application Potential ◽  
Reduction Of Energy Consumption

AbstractIn this study, a new one step paired electrochemical method is developed for simultaneous synthesis of iron and iron oxide nanoparticles. iron and iron oxide are prepared as cathodic and anodic products from iron (ii) sulfate aqueous solution in a membrane divided electrolytic cell by the pulsed current electrosynthesis. Because of organic solvent-free and electrochemical nature of the synthesis, the process could be considered as green and environmentally friendly. The reduction of energy consumption and low cost are the other significant advantages of this new method that would have a great application potential in the chemical industry. The nanostructure of prepared samples was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The magnetic properties were studied by vibrating sample magnetometer (VsM).

scholarly journals Green synthesis of iron oxide nanoparticles using Platanus orientalis leaf extract for antifungal activity

2019 ◽  
Vol 8 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Henam Sylvia Devi ◽  
Muzaffar Ahmad Boda ◽  
Mohammad Ashraf Shah ◽  
Shazia Parveen ◽  
Abdul Hamid Wani
Keyword(s):  
Electron Microscopy ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Leaf Extract ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Platanus Orientalis ◽  
Oxide Particles

Abstract In this report, aqueous phase green synthesis of iron oxide nanoparticle utilizing Platanus orientalis is elucidated for the first time. The phytoconstituents of the P. orientalis leaf extract serve a dual role as reducing and capping agent during the fabrication of iron oxide nanoparticles. The role of the leaf extract in the synthesis of iron oxide has been briefly demonstrated in this work. The tailored iron oxide particles were characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray analysis, infrared spectroscopy, ultraviolet-visible spectroscopy, and dynamic light scattering technique. Nonetheless, X-ray diffraction pattern reveals the mixed phase nature of the ensuing iron oxide, i.e. α-Fe2O3 and γ-Fe2O3. The spherical oxide particles have an average diameter of 38 nm as determined from transmission electron microscopy. Infrared spectroscopy results confirmed the stabilization of iron oxide nanoparticles by the phytochemicals present in the leaf extract. Iron oxide nanoparticles show significant antifungal activity against Aspergillus niger and Mucor piriformis, employed as model fungi, but found to be more active toward M. piriformis.

Utilization of Chemically Synthesized Super Paramagnetic Iron Oxide Nanoparticles in Drug Delivery, Imaging and Heavy Metal Removal

2018 ◽  
Vol 30 (1) ◽  
pp. 11-24 ◽  
Author(s):  
P. Durga Sruthi ◽  
Chamarthy Sai Sahithya ◽  
C. Justin ◽  
C. SaiPriya ◽  
Karanam Sai Bhavya ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Heavy Metal ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Oxide Nanoparticles ◽  
Super Paramagnetic Iron Oxide

Preparation and Characterization of Ultrafine Monodisperse Iron Oxide Nanoparticles by Solvothermal Method

2015 ◽  
Vol 748 ◽  
pp. 93-96
Author(s):  
Cheng Mei Liu ◽  
Yu Xia Zhao ◽  
Jin Dong ◽  
Lu Hai Li ◽  
Yen Wei ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Solvothermal Method ◽  
Physical Property Measurement System ◽  
Thermo Gravimetric Analysis ◽  
Physical Property ◽  
Oxide Nanoparticles ◽  
Gravimetric Analysis ◽  
Transmission Electron ◽  
Different Diameters

Using iron-oleate complex as a precursor, oleic acid as a stabilizer and 1-octadecene as a reductant, uniform-sized and highly monodisperse iron oxide nanoparitcles with different diameters were successfully synthesized via solvothermal method by changing reaction time. Transmission electron microscope (TEM), thermo-gravimetric analysis (TGA), fourier transform infrared spectroscopy (FT-IR), physical property measurement system (PPMS) and dynamic light scattering (DLS) was used to characterize obtained iron oxide nanoparticles. These results indicated that iron oxide nanoparitcles with the diameter ranging from 4 to 8 nm can be controllably synthesized.

Phase, morphological, and magnetic properties of iron oxide nanoparticles extracted from mill scale waste and its surface modification with CTAB surfactant

2019 ◽  
Vol 56 (2) ◽  
pp. 729-743
Author(s):  
Ismayadi Ismail ◽  
Abdul Halim Abdullah ◽  
Azdiya Suhada Abdul Arifin ◽  
Idza Riati Ibrahim ◽  
Farah Nabilah Shafiee ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Surface Modification ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Mill Scale
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