Synthesis and characterizations of rutile-TiO2 nanoparticles derived from chitin for potential photocatalytic applications

Nwankwo, U.; Bucher, R.; Ekwealor, A. B. C.; Khamlich, S.; Mâaza, M.; Ezema, Fabian I.

doi:10.1016/j.vacuum.2018.12.011

Cited by 70 publications

(21 citation statements)

References 36 publications

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“…1D and 2D nanostructures offer high rate of charge carrier transportation high interfacial free energies due to providing direct pathways for these photogenerated charge carrier movement [19,20]. They also have high interfacial free energies, resulting in their aggregation and loss of active surface area during storage or photocatalytic testing [21].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

et al. 2021

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Flower-like titanium dioxide (TiO2) nanostructures are successfully synthesized using a hybrid sol-gel and a simple hydrothermal method. The sample was characterized using various techniques to study their physicochemical properties and was tested as a photocatalyst for methyl orange degradation and as an antibacterial material. Raman spectrum and X-ray diffraction (XRD) pattern show that the phase structure of the synthesized TiO2 is anatase with 80-100 nm in diameter and 150–200 nm in length of flower-like nanostructures as proved by field emission scanning electron microscope (FESEM). The energy-dispersive X-ray spectroscopy (EDS) analysis of flower-like anatase TiO2 nanostructure found that only titanium and oxygen elements are present in the sample. The anatase phase was confirmed further by a high-resolution transmission electron microscope (HRTEM) and selected area electron diffraction (SAED) pattern analysis. The Brunauer-Emmett-Teller (BET) result shows that the sample had a large surface area (108.24 m2/g) and large band gap energy (3.26 eV) due to their nanosize. X-ray photoelectron spectroscopy (XPS) analysis revealed the formation of Ti4+ and Ti3+ species which could prevent the recombination of the photogenerated electron, thus increased the electron transportation and photocatalytic activity of flower-like anatase TiO2 nanostructure to degrade the methyl orange (83.03%) in a short time (60 minutes). These properties also support the good performance of flower-like titanium dioxide (TiO2) nanostructure as an antibacterial material which is comparable with penicillin which is 13.00 ± 0.02 mm inhibition zone against Staphylococcus aureus.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

et al. 2021

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“…The diffractograms were analysed using PDXL Program (database provided by ICDD). The crystallite size was estimated from the XRD data using the Scherrer equation [18]: (1) where: L -crystallite size, K -Scherrer constant, λ -X-ray wavelength, β -Full width at half-maximum of the peak, θ -diffraction angle.…”

Section: Methodsmentioning

confidence: 99%

Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites I. Synthesis and characterization of the adsorbent material

Fierăscu¹,

Şomoghi²,

Nicolae³

et al. 2019

Rev.Chim.

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An inorganic/organic magnetic nanocomposite was synthesized and analytically characterized using X-ray fluorescence, X-ray diffraction, transmission electron microscopy and thermal analysis. The evaluation of the magnetic properties revealed that both the magnetite and the magnetite/chitosan nanocomposite are superparamagnetic with a paramagnetic component, having the saturation magnetization values of 48.04 emu/g, and 41.3 emu/g, respectively. The synthesized material is indented for the adsorption of two known commercial-available pesticides (active ingredients deltamethrin and thiamethoxam, respectively) from aqueous solutions.

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“…All the diffraction peaks were indexed to the tetragonal structure of rutile phase TiO 2 with P4 2 /mnm, density = 4.25 g/cm 2 space group (JCPDS card No. 88-1172) (31) . The estimated lattice parameters are a=b=4.566 Å and c = 2.948 Å which are good agreement with previous literature reports.…”

Section: Preparation Of Electrochemical Work Stationmentioning

confidence: 99%

Electrochemical Activity of TiO2 Nanoparticles in NaOH Electrolyte via Green Synthesis Using Calotropis gigantea Plant Leaf Extract

Reddy¹,

Jntua²,

Shaik³

et al. 2021

IJST

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Synthesis and characterizations of rutile-TiO2 nanoparticles derived from chitin for potential photocatalytic applications

Cited by 70 publications

References 36 publications

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites I. Synthesis and characterization of the adsorbent material

Electrochemical Activity of TiO2 Nanoparticles in NaOH Electrolyte via Green Synthesis Using Calotropis gigantea Plant Leaf Extract

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