A facile synthesis of nanocrystalline CoFe2O4 embedded one-dimensional ZnO hetero-structure and its use in photocatalysis

Borgohain, C.; Senapati, Kula Kamal; Sarma, Kamal; Phukan, Prodeep

doi:10.1016/j.molcata.2012.07.032

Cited by 77 publications

(29 citation statements)

References 43 publications

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“…Among various semiconductors employed, zinc oxide (ZnO) is well known to be an excellent photocatalyst [2][3] . Some researchers have reported that ZnO as photocatalyst exhibit superior advantages than the others, which is ascribed to its higher quantum efficiency, chemical stability, non-toxicity, and lower cost 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Rahmayeni¹,

Zulhadjri²,

Jamarun³

et al. 2016

Orient. J. Chem

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ZnO-NiFe 2 O 4 magnetic nanocomposite photocatalysts were successfully synthesized by simple solvothermal method using nitric salts as starting materials and ethanol as solvent. The synthesized samples were characterized by XRD, FESEM-EDX, TEM, DRS-UV-vis, VSM, and FTIR instruments. Photocatalytic activity of the samples was evaluated by dye degradation under solar light irradiation. The results show that the diffraction peaks of nanocomposites correspond to the hexagonal wurzite of ZnO and spinal cubic structure of NiFe 2 O 4 . The microstructure studies revealed that nanocomposites were dominated by granular-like of ZnO nanoparticles were synthesized at 180°C and rod-like at 200°C. The estimated band gap value of ZnO-NiFe 2 O 4 (1:0.01) nanocomposites is 2.78 eV which is lower than ZnO. The magnetic saturation (Ms) result showed a superparamagnetic behavior for nanocomposites. It was found that the photocatalytic activity of synthesized nanocomposites were higher than ZnO and NiFe 2 O 4 .

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Section: Introductionmentioning

confidence: 99%

Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Rahmayeni¹,

Zulhadjri²,

Jamarun³

et al. 2016

Orient. J. Chem

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show abstract

“…In the last decade photocatalysis has generated a great interest for researchers because of their potential applications in areas such as electronic, biomedical, chemical and environmental science. Photocatalytic degradation is one of the very important methods to remove toxic organic compounds from the waste water [2,3]. Many photoelectrodes such as TiO 2 , ZnO, SrTiO 3 and BiOCl in the powdered form have been attracting considerable attention in the photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of ZnFe2O4 films and its application in photoelectrocatalytic degradation of salicylic acid

Kumbhar

Mahadik

Shinde

et al. 2015

Journal of Photochemistry and Photobiology B: Biology

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“…Matching the bands of the as-synthesized ferrite with the SrO immobilized sample, small displacements are observed; they are ascribed to polarity increasing of metal-oxygen bonds. 37,40 All the information here described is important for the catalytic activity explanations, as seem ahead.…”

Section: Resultsmentioning

confidence: 92%

“…The presence of light structures indicates that there are few overlapping structures, whereas the intensification of the dark tonality indicates a gradual increase of structures overlapping. 40 The sample was suitable for energy dispersive spectroscopy (EDS) and the process was performed during TEM analysis. The results are presented in Figure 7 and match to the circles A to E represented in Figure 6.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization and Catalytic Evaluation of Magnetically Recoverable SrO/CoFe2O4 Nanocatalyst for Biodiesel Production from Babassu Oil Transesterification

Falcão¹,

Garcia²,

Moura³

et al. 2017

J. Braz. Chem. Soc.

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Biodiesel production has gained a lot of attention due to its environmental benefits and production from renewable sources. Here, it is reported a magnetically recoverable catalyst of SrO immobilized on a CoFe 2 O 4 support (SrO/CoFe 2 O 4 ), which was efficiently applied for babassu oil transesterification and used up to four cycles without a significant activity loss. The stability and performance of the catalyst were analyzed considering the solvent used for its synthesis. Characterizations such as vibrating sample magnetometer (VSM), thermogravimetry (TG), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) were performed. The present study demonstrated that the catalyst has a strong magnetic response, which reflects the nature of the nanoparticles. For the first run, the material presented a yield of 96% when synthesized in acetone in a molar proportion of SrO/CoFe 2 O 4 of 5:1.

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A facile synthesis of nanocrystalline CoFe2O4 embedded one-dimensional ZnO hetero-structure and its use in photocatalysis

Cited by 77 publications

References 43 publications

Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Fabrication of ZnFe2O4 films and its application in photoelectrocatalytic degradation of salicylic acid

Synthesis, Characterization and Catalytic Evaluation of Magnetically Recoverable SrO/CoFe2O4 Nanocatalyst for Biodiesel Production from Babassu Oil Transesterification

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