Fe3O4/SiO2/TiO2–Ag cubes with core/shell/shell nano-structure: synthesis, characterization and efficient photo-catalytic for phenol degradation

Ghasemy-Piranloo, Fardin; Dadashian, Saeideh; Bavarsiha, Fatemeh

doi:10.1007/s10854-019-01641-1

Cited by 12 publications

(3 citation statements)

References 58 publications

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“…This was mainly because the TEM technique determines the diameter from the surface of the particle, while the XRD measures the single crystal grain. 13 The energy-dispersive x-ray spectroscopy (EDX) results of both samples Fe 3 O 4 -NH 4 OH and Fe 3 O 4 -NaOH are shown in Fig. 2.…”

Section: Surface Morphologymentioning

confidence: 99%

Synthesis of Fe3O4 Nanoparticles with Different Shapes Through a Co-Precipitation Method and Their Application

Ba‐Abbad

Benamour

Ewis

et al. 2022

JOM

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Magnetic Fe3O4 nanoparticles (NPs) were successfully synthesized via co-precipitation method using ferric chloride and ferrous sulphate as the starting materials. The shape and the size of Fe3O4 NPs were controlled by using different types of additive including ammonium hydroxide and sodium hydroxide. The results revealed that by adding ammonium hydroxide, the particles attained a spherical shape with a uniform size. On the other hand, the shape of the particles turned from spherical to cubic using sodium hydroxide. The magnetic results showed that both samples attained hysteresis loop, which indicated that both samples have ferromagnetic behavior. In addition, Fe3O4 NPs with cubic shape showed higher adsorptive behaviour towards Congo red compared to spherical Fe3O4 NPs, which is attributed to the enhancement of their magnetic properties. The adsorption of Congo red onto cubic Fe3O4 NPs was best described by Langmuir isotherm model, while spherical Fe3O4 NPs followed Freundlich isotherm model.

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Section: Surface Morphologymentioning

confidence: 99%

Synthesis of Fe3O4 Nanoparticles with Different Shapes Through a Co-Precipitation Method and Their Application

Ba‐Abbad

Benamour

Ewis

et al. 2022

JOM

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“…), heavy metals and other wastes released from these industrial establishments are among the pollutants harmful to the environment [ 1 ]. Especially organic contaminants are accepted the main concern among water contaminants because they contain a large part of industrial production, have high toxicity, and have poor self-degradation capability [ 2 , 3 ]. Dyes, one of the organic pollutants, are extensively used in growing industrial sectors such as paper, woven, plastic, food, integument, and pharmaceutical corporation, and they release wastewater containing dyes from these sectors to the environment [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of new Fe3O4@SiO2@TiO2-CPTS-HBAP (FST-CH) nanoparticles for photocatalytic degradation and adsorption removal of rhodamine B dye in the aquatic environment

Cimen,

Bilgic,

Bayrak

2024

Heliyon

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“…In the case of semiconductor photo-catalysts which have been exposed to light with excitation energy higher than band gap energy, electron-hole pairs are generated [5,6]. These charge carriers (electrons and holes) can perform the oxidization/reduction reaction with the compounds adsorbed on the semiconductor surface or lead to form radical groups.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the structural and photo-catalytic properties of nanostructured Fe3O4/TiO2 core-shell composites synthesized by ultrasonic and Stöber methods

et al. 2020

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In the present research, Fe3O4/TiO2 magnetic photo-catalytic nanocomposites with a core/shell structure were successfully synthesized using two techniques of ultrasonic and St?ber. In this way, iron oxide (II, III) nanoparticles as soft magnetic cores of this composite were prepared by utilizing a chemical method assisted by ultrasound with a Fe+3/Fe+2 molar ratio of 1.5 under the nitrogen atmosphere. Thereafter, titanium oxide coating was performed on Fe3O4 nanoparticles by using tetrabutyl orthotitanate (TBOT) and titanium isopropoxide (TTIP) precursors. The resultant nanostructures were characterized by means of X-ray powder diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, energy dispersive X-ray (EDX) analysis, vibrating sample magnetometer (VSM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Through findings obtained from TEM examinations, the formation of core/shell nanostructure was confirmed in the prepared Fe3O4/TiO2 composites. Analysis of magnetic properties revealed that titanium oxide coating on iron oxide nanoparticles reduces saturation magnetization (Ms). The values of saturation magnetization for Fe3O4 powder and Fe3O4/TiO2 nanocomposite powders achieved via ultrasonic and St?ber methods were 60, 23 and 9 emu/g, respectively. Photo-catalytic properties of Fe3O4/TiO2 nanostructures were evaluated by the use of methylene blue dye under UV light. Results indicated that Fe3O4/TiO2 composite obtained by the St?ber method has a better photo-catalytic property as well as a decreased but acceptable magnetic separation. Degradation of methylene blue dye in the presence of photo-catalytic powder prepared by ultrasonic and St?ber procedures was 61 and 69 %, respectively, within 90 minutes of UV light exposure.

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Fe3O4/SiO2/TiO2–Ag cubes with core/shell/shell nano-structure: synthesis, characterization and efficient photo-catalytic for phenol degradation

Cited by 12 publications

References 58 publications

Synthesis of Fe3O4 Nanoparticles with Different Shapes Through a Co-Precipitation Method and Their Application

Synthesis of Fe3O4 Nanoparticles with Different Shapes Through a Co-Precipitation Method and Their Application

Fabrication and characterization of new Fe3O4@SiO2@TiO2-CPTS-HBAP (FST-CH) nanoparticles for photocatalytic degradation and adsorption removal of rhodamine B dye in the aquatic environment

Comparison of the structural and photo-catalytic properties of nanostructured Fe3O4/TiO2 core-shell composites synthesized by ultrasonic and Stöber methods

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