Simultaneous amination of TiO<sub>2</sub>nanoparticles in the gas phase synthesis for bio-medical applications

Lee, Kyoung-No; Kim, Yang-Eon; Lee, Chang-Woo; Lee, Jai-Sung

doi:10.1088/1757-899x/18/8/082021

Cited by 8 publications

(5 citation statements)

References 17 publications

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“…Andrzejewska et al [ 22 ] reported the results of TiO 2 modification with various aminosilanes that was carried out to obtain pigments via adsorption of organic dyes on modified TiO 2 surface. Lee et al [ 23 ] successfully prepared APTES-modified TiO 2 materials by simultaneous amination of TiO 2 nanoparticles in the gas phase synthesis for possible biomedical applications. Bao et al [ 24 ] also proposed a production method of aminosilane-functionalized TiO 2 nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

et al. 2022

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A visible-light photocatalytic performance of 3-aminopropyltriethoxysilane (APTES)-modified TiO2 nanomaterials obtained by solvothermal modification under elevated pressure, followed by calcination in an argon atmosphere at 800–1000 °C, is presented for the first time. The presence of silicon and carbon in the APTES/TiO2 photocatalysts contributed to the effective delay of the anatase-to-rutile phase transformation and the growth of the crystallites size of both polymorphous forms of TiO2 during heating. Thus, the calcined APTES-modified TiO2 exhibited higher pore volume and specific surface area compared with the reference materials. The change of TiO2 surface charge from positive to negative after the heat treatment increased the adsorption of the methylene blue compound. Consequently, due to the blocking of active sites on the TiO2 surface, the adsorption process negatively affected the photocatalytic properties. All calcined photocatalysts obtained after modification via APTES showed a higher dye decomposition degree than the reference samples. For all 3 modifier concentrations tested, the best photoactivity was noted for nanomaterials calcined at 900 °C due to a higher specific surface area than materials calcined at 1000 °C, and a larger number of active sites available on the TiO2 surface compared with samples annealed at 800 °C. It was found that the optimum concentration for TiO2 modification, at which the highest dye decomposition degree was noted, was 500 mM.

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Section: Introductionmentioning

confidence: 99%

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

et al. 2022

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“…Many studies have been conducted on the preparation of TiO 2 . At present, the common preparation methods include gas phase process [1], hydrothermal method [2][3][4], sol-gel method [5][6][7], solvothermal method [8][9][10], and detonation method [11,12]. The narrow spectral response range of common TiO 2 photocatalysts influences their photocatalytic application.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cu-doped nano-TiO2 by detonation method

Yan

Zhao

et al. 2015

Ceramics International

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“…Another application of such metallic-ion doped TiO 2 nanoparticles is in the biomedical field [9,10]. Reportedly, Al-doped TiO 2 nanoparticles have protein adsorption ability, which is expected to be effective for skin care, specifically for atopic dermatitis [10].…”

Section: Introductionmentioning

confidence: 99%

A method for large-scale synthesis of Al-doped TiO₂nanopowder using pulse-modulated induction thermal plasmas with time-controlled feedstock feeding

Kodama¹,

Tanaka²,

Kita³

et al. 2014

J. Phys. D: Appl. Phys.

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Abstract.A unique large-scale synthesis method for Al-doped TiO 2 nanopowder was developed using 20-kW Ar-O 2 pulse-modulated induction thermal plasmas (PMITP) with time-controlled feedstock feeding (TCFF). This PMITP-TCFF method is characterized by intermittent feedstock powder feeding synchronized with modulated power of the PMITP. The method enables heavy-load feeding of raw material powder to the thermal plasmas for complete evaporation. Synthesized nanopowder was analyzed using different methods including FE-SEM, XRD, BF-TEM, TEM/EDX mapping, XPS, and spectrophotometry. Results showed that Al-doped TiO 2 nanopowder can be synthesized with mean diameters of 50-60 nm. The Al doping in TiO 2 was confirmed from the constituent structure in XRD spectra, the uniform presence of Al on the nanopowder in TEM/EDX mapping, the chemical shift in XPS spectra, and the absorption edge shift in the optical property. The production rate of Al-doped TiO 2 nanopowder was estimated as 400 g h −1 .

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Simultaneous amination of TiO₂nanoparticles in the gas phase synthesis for bio-medical applications

Cited by 8 publications

References 17 publications

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Synthesis of Cu-doped nano-TiO2 by detonation method

A method for large-scale synthesis of Al-doped TiO₂nanopowder using pulse-modulated induction thermal plasmas with time-controlled feedstock feeding

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Simultaneous amination of TiO2nanoparticles in the gas phase synthesis for bio-medical applications

Cited by 8 publications

References 17 publications

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Synthesis of Cu-doped nano-TiO2 by detonation method

A method for large-scale synthesis of Al-doped TiO2nanopowder using pulse-modulated induction thermal plasmas with time-controlled feedstock feeding

Contact Info

Product

Resources

About

Simultaneous amination of TiO₂nanoparticles in the gas phase synthesis for bio-medical applications

A method for large-scale synthesis of Al-doped TiO₂nanopowder using pulse-modulated induction thermal plasmas with time-controlled feedstock feeding