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2 article(s) from Ambreen, Subia

Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta₂O₅ nanoparticles in rhodamine B removal

Subia Ambreen,
Mohammad Danish,
Narendra D. Pandey and
Ashutosh Pandey

Beilstein J. Nanotechnol. 2017, 8, 604–613, doi:10.3762/bjnano.8.65

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Figure 1: XRD patterns of Ta₂O₅ nanoparticles obtained from (a) Ta(OEt)₄(OOCCHCl₂) and (b) Ta(On-Bu)₄(OOCCHCl₂...

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Figure 2: TEM image of Ta₂O₅ nanoparticles obtained from Ta(OEt)₄(OOCCH₂Cl).

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Figure 3: SEM images of Ta₂O₅ nanoparticles obtained from (a) Ta(OEt)₄(OOCCHCl₂) and (b) Ta(On-Bu)₄(OOCCHCl₂)....

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Figure 4: Particle sizes and distributions of Ta₂O₅ synthesized from (a) Ta(On-Bu)₄(OOCCH₂Cl), (b) Ta(On-Bu)₄...

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Figure 5: Solid-state diffuse reflectance UV–vis spectrum and extrapolation of the band gap energy of Ta₂O₅ n...

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Figure 6: Degradation of RhB by Ta₂O₅ nanoparticles synthesized from (a) Ta(OEt)₅, (b) Ta(OEt)₄(OOCCH₂Cl), (c...

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Figure 7: Degradation of RhB by Ta₂O₅ nanoparticles synthesized from (a) Ta(On-Bu)₄, (b) Ta(On-Bu)₄(OOCCH₂Cl)...

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Figure 8: Possible intermediates of rhodamine B during photocatalytic degradation process.

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Figure 9: Graphical determination of the reaction rate of the photocatalytic degradation of RhB by Ta₂O₅ nano...

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Full Research Paper

Published 13 Mar 2017

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Characterization and photocatalytic study of tantalum oxide nanoparticles prepared by the hydrolysis of tantalum oxo-ethoxide Ta₈(μ₃-O)₂(μ-O)₈(μ-OEt)₆(OEt)₁₄

Subia Ambreen,
N D Pandey,
Peter Mayer and
Ashutosh Pandey

Beilstein J. Nanotechnol. 2014, 5, 1082–1090, doi:10.3762/bjnano.5.121

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Figure 1: ORTEP representation of the molecular structure of 1 in the crystal (hydrogen atoms are omitted for...

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Figure 2: XRD pattern of Ta₂O₅ nanoparticles calcined at 750 °C for 4 h.

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Figure 3: SEM image of Ta₂O₅ nanoparticles calcined at 750 °C for 4 h.

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Figure 4: Size and distribution of TOPO-coated Ta₂O₅ nanoparticles in chloroform dispersion.

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Figure 5: TEM image of the TOPO-coated Ta₂O₅ nanoparticles. The scale bar corresponds to 200 nm.

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Figure 6: Thermogravimetry (TGA), differential thermal analysis (DTA) and differential scanning calorimetry (...

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Figure 7: Solid state diffuse reflectance UV–vis spectra of Ta₂O₅ nanoparticles.

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Figure 8: Calculation of band gap of Ta₂O₅ nanoparticles by Tauc plot.

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Figure 9: BET surface area plot of the calcined Ta₂O₅ nanoparticles.

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Figure 10: Degradation of rhodamine B by UV irradiation at 0.8 mg/mL catalyst loading.

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Figure 11: Effect of the concentration of Ta₂O₅ nanoparticles on the rate of degradation of rhodamine B.

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Figure 12: Effect of dye concentration on photocatalytic degradation.

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Figure 13: Effect of dye concentration on photocatalytic degradation.

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Figure 14: Effect of the pH value on the rate of degradation of rhodamine B.

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Figure 15: Effect of the calcination temperature on the rate of degradation of rhodamine B.

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Published 18 Jul 2014

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Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta2O5 nanoparticles in rhodamine B removal

Characterization and photocatalytic study of tantalum oxide nanoparticles prepared by the hydrolysis of tantalum oxo-ethoxide Ta8(μ3-O)2(μ-O)8(μ-OEt)6(OEt)14

Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta₂O₅ nanoparticles in rhodamine B removal

Characterization and photocatalytic study of tantalum oxide nanoparticles prepared by the hydrolysis of tantalum oxo-ethoxide Ta₈(μ₃-O)₂(μ-O)₈(μ-OEt)₆(OEt)₁₄