Characterization of &amp;#947- and α-Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; nano powders synthesized by emulsion precipitation-calcination route and rheological behaviour of α-Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;

Sahoo, Santosh Kumar; Agarwal, Kavita; Singh, AK; Polke, B. G.; Raha, KC

doi:10.4314/ijest.v2i8.63841

Cited by 62 publications

(52 citation statements)

References 40 publications

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“…Nano sized α-Fe 2 O 3 (70nm) was prepared through emulsion route as described in literature [35]. Nano Al (100nm) was obtained from SIBTERMOCHIM Ltd, Russia.…”

Section: Methodsmentioning

confidence: 99%

Ignition Behavior of Al/Fe2O3 Metastable Intermolecular Composites

Sahoo¹,

Danali²,

Arya³

2017

IJOER

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“…Nano sized α-Fe 2 O 3 (70nm) was prepared through emulsion route as described in literature [35]. Nano Al (100nm) was obtained from SIBTERMOCHIM Ltd, Russia.…”

Section: Methodsmentioning

confidence: 99%

Ignition Behavior of Al/Fe2O3 Metastable Intermolecular Composites

Sahoo¹,

Danali²,

Arya³

2017

IJOER

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“…However, the intensity of the vibration IR spectra decreased as the amount of Fe increased. Several studies have reported observations where the IR spectrum of ferric oxide (Fe 2 O 3 ) between 560-460 cm −1 may have overlapped with the Ti-O-Ti vibration peak at 766 cm −1 , causing this peak to diminish as the amount of Fe increased [21,22]. The vibration peak recorded at 1390 cm −1 represented the C=O stretching related to carboxylic groups and carboxylate moieties [23,24], while the presence of C=O stretching could be due to the oxidation treatment of AC with nitric acid.…”

Section: Photodegradation Studymentioning

confidence: 99%

Photodegradation of 1-Butyl-3-methylimidazolium Chloride [Bmim]Cl via Synergistic Effect of Adsorption–Photodegradation of Fe-TiO2/AC

2017

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Ionic liquids (ILs) have attracted interest among researchers due to their tunable properties, which enable them to be used in a wide variety of applications. However, toxicity and biodegradation studies of ILs proved that most of the aromatic ILs, such as imidazolium, are highly toxic and non-biodegradable. Researchers have investigated several advance oxidation processes (AOPs) in order to evaluate the efficiency of the systems used to remove ILs from wastewater. However, their relatively high cost and environmental concerns have limited the application of these AOPs in industry. This research conducted a photocatalytic study using hybrid nanomaterials to evaluate the efficiency of this system as an alternative AOP system for the removal of ILs from wastewater. The synergistic effect of adsorption-photodegradation was introduced by depositing Fe-TiO 2 onto functionalized activated carbon (AC). Nano-TiO 2 was synthesized using the microemulsion method, then modified with a transition metal, and deposited onto oxidized AC. The photodegradation reaction of 1-butyl-3-methylimidazolium chloride [bmim]Cl was then investigated under simulated visible light irradiation. It was observed that the overall efficiency of the system increased with the increasing amount of Fe loading. Our investigation revealed that extrinsic factors such as solution pH, the initial concentration of ILs, and photocatalyst dosage significantly affect the overall efficiency of the system. The optimum condition for the system was observed at pH 10, with initial ILs at 1 mM at 1 g/L of photocatalyst. The best performance photocatalyst was 0.2Fe-TiO 2 /AC.

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“…Sintesis nanopartikel magnetik besi sudah banyak dilakukan antara lain dengan menggunakan metode irradiasi electron beam, metode kopresipitasi, metode presipitasi emulsi (Zhao et al, 2007;Layek et al, 2010;Sahoo et al, 2010). Oleh karena nanopartikel besi bersifat toksis terhadap tubuh manusia, dalam bioaplikasi, nanopartikel ini harus dilapisi terlebih dahulu dengan material lain.…”

Section: Pendahuluanunclassified

Surface Character of Iron Oxide/Carbon Nanoparticles Synthesized by Submerged Arc Discharge Method in Ethanol/Urea Medium

2017

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Synthesis of iron oxide nanoparticles modified with carbon has been successfully performed by submerged arc-discharge method in ethanol/urea medium. Iron oxide used in the fabrication process was prepared by iron electrolysis in an electrolyte solution of NaCl. Fabrication of nanoparticles in this method uses two graphite electrodes. One of them was made in a pointed shape and the other graphite electrodes hollowed out and filled with a mixture of iron oxide, graphite and glue silica (as binder) with a ratio of 1:3:1 (w/w/w). The liquid medium used in this method is a mixture solution of ethanol 50% and urea (0%, 10%, 25% and 50%) with a volume ratio of 1:1 (v/v). The crystalline of iron oxide was characterized using X-Ray Diffraction (XRD), compared to JCPDS No. 89-0597, No. 89-0691 and No. 39-1346. Variations in the urea concentration in the liquid medium provided the changes of the surface character of the synthesized nanoparticles. The changes of surface character were analyzed by the Fourier Transform Infra Red (FTIR) spectra and nanoparticle dispersion in water and ethanol. FTIR spectra showed the absorption of Fe-O, CH, CN, C = O, OH and NH at 460-555 cm-1, 650-1000 cm-1, 1000-1350 cm-1, 1640-1680 cm-1, 2400-3400 cm-1, 3200-3400 cm-1, 3100-3500 cm-1, respectively. The best hydrophilic surface character achieved when the nanoparticle was synthesized in medium of ethanol 50% with the addition of urea50%. The existence of a functional group attached on the surface of nanoparticles synthesized in ethanol/urea makes these nanoparticles had better dispersion than nanoparticles synthesized in ethanol medium without urea addition.

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Characterization of &#947- and α-Fe<sub>2</sub>O<sub>3</sub> nano powders synthesized by emulsion precipitation-calcination route and rheological behaviour of α-Fe<sub>2</sub>O<sub>3</sub>

Cited by 62 publications

References 40 publications

Ignition Behavior of Al/Fe2O3 Metastable Intermolecular Composites

Ignition Behavior of Al/Fe2O3 Metastable Intermolecular Composites

Photodegradation of 1-Butyl-3-methylimidazolium Chloride [Bmim]Cl via Synergistic Effect of Adsorption–Photodegradation of Fe-TiO2/AC

Surface Character of Iron Oxide/Carbon Nanoparticles Synthesized by Submerged Arc Discharge Method in Ethanol/Urea Medium

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