Multifunctional Applications of Microwave-Assisted Biogenic TiO2 Nanoparticles

Kannan, Karthik; Vijayalakshmi, S.; Phuruangrat, Anukorn; Revathi, V.; Verma, U. P.

doi:10.1007/s10876-019-01556-1

Cited by 57 publications

(12 citation statements)

References 34 publications

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“…Figure shows the FT‐IR spectrum of the prepared CQDs and identified carboxylic functional groups on the CQD surface. The absorption peaks positioned at 3437 and 660 cm −1 could be attributed to the stretching vibration of –OH groups, related to the O–H bonds on the carbon surface and also adsorbed water on the product surface . Peaks at 1637 and 1406 cm −1 were due to the stretching vibration of the carboxylic group.…”

Section: Resultsmentioning

confidence: 96%

“…The absorption peaks positioned at 3437 and 660 cm −1 could be attributed to the stretching vibration of -OH groups, related to the O-H bonds on the carbon surface and also adsorbed water on the product surface. [28][29][30][31][32][33] Peaks at 1637 and 1406 cm −1 were due to the stretching vibration of the carboxylic group. These results indicated that there were large numbers of residues indicated as hydroxyl and carboxyl groups on the CQD surface.…”

Section: Functional Group Identification: Ft-irmentioning

confidence: 99%

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Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

et al. 2019

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A facile and eco‐friendly hydrothermal method was used to prepare carbon quantum dots (CQDs) using orange waste peels. The synthesized CQDs were well dispersed and the average diameter was 2.9 ± 0.5 nm. Functional group identification of the CQDs was confirmed by Fourier transform infrared spectrum analysis. Fluorescence properties of the synthesized CQDs exhibited blue emission. The fluorescence quantum yield of the CQDs was around 11.37% at an excitation wavelength of 330 nm. The higher order nonlinear optical properties were examined using a Z‐scan technique and a continuous wave laser that was operated at a wavelength of 532 nm. Results demonstrated that the synthesis of CQDs can be considered as promising for optical switching devices, bio‐scanning, and bio‐imaging for optoelectronic applications.

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Section: Resultsmentioning

confidence: 96%

Section: Functional Group Identification: Ft-irmentioning

confidence: 99%

Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

et al. 2019

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“…The charge carriers trapped by TiO2 surface are extremely reactive. Almost any organic compounds can be photooxidized on TiO2 surface to CO2 and H2O [2,[5][6][7][8]. Viruses and bacteria can be destroyed over the photocatalytic surface as well [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Danyliuk

Mironyuk

Tatarchuk

et al. 2021

Phys. Chem. Solid St.

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The oxidative degradation of Rhodamine B dye under ultraviolet irradiation was studied. The degradation rate was measured with using of smartphone camera. Photocatalytic degradation of the Rhodamine B dye over the P25-TiO2 catalyst has been found to accelerate substantially in the presence of hydrogen peroxide. The relationship between the photocatalytic degradation rate and H2O2 concentration has been studied. The optimal concentration of H2O2 has been found to in the range of 10-25 mM. The proposed mixture of P25 photocatalyst and H2O2 oxidizer can be used to remove organic pollutions from industrial waste water.

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“…Methods of Titanium Dioxide Synthesis (Review) approach for the nanomaterials synthesis. The biological method provides a wide range of resources for the synthesis of nanoparticles using biological agents such as bacteria, fungi, actinomycetes, yeast, and plants [49][50][51][52]. The rate of reduction of metal ions with the help of biological agents is much faster, as well as due to ambient temperature and pressure.…”

Section: «Green» Methodsmentioning

confidence: 99%

Methods of Titanium Dioxide Synthesis (Review)

Mironyuk

Soltys

Tatarchuk

et al. 2020

Phys. Chem. Solid St.

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TiO2-based nanomaterials are attracting much attention in many areas, such as photocatalysis, photoelectricity, probing, electrochromism, photochromism, etc. They are widely used in paints, polymers, sunscreens, and toothpaste. There are various ways of synthesis that affect the size, shape, and crystallinity of TiO2 nanoparticles. The main methods of obtaining titanium dioxide (with the structure of anatase, rutile or brookite) in the form of spheres, rods, fibers, and tubes include: sol-gel technology, hydrothermal and solvothermal methods, microwave method involving high-frequency electromagnetic waves, template method, electrodeposition, a sonochemical method using ultrasound, chemical and physical vapor deposition, "green" methods, etc. This literature review presents modern scientific results on the production of TiO2 nanoparticles by various methods.

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Multifunctional Applications of Microwave-Assisted Biogenic TiO2 Nanoparticles

Cited by 57 publications

References 34 publications

Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Methods of Titanium Dioxide Synthesis (Review)

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