Serendipity following attempts to prepare C-doped rutile TiO2

Neville, Elaine M.; Ziegler, Julia; MacElroy, J. M. D.; Thampi, K. Ravindranathan

doi:10.1016/j.apcata.2013.11.024

Cited by 14 publications

(6 citation statements)

References 67 publications

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“…An attractive feature of the TiO 2 photocatalyst is its potential to be activated by visible light. To increase photocatalytic activity and decrease recombination of photoexcited charge carriers, several methods have been followed, such as heterojunction formation and doping with non-metals, metals, and nanosized crystals, which can alter the electronic and optical properties of TiO 2 [56][57][58][59][60]. By using dopants in TiO 2 , its bandgap reduces [61].…”

Section: Sol-gel Methodsmentioning

confidence: 99%

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Kaur

Sandhu

et al. 2023

Magnetochemistry

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Ferrites are important magnetic materials used in electronic devices. Nanocomposites of ferrites with TiO2, SiO2 and carbon quantum dots have gained recent interest due to their unique advantages, such as high chemical stability, surface-active sites, high specific surface area, non-toxicity, excellent optical properties, and tunable porosity. In the present review, general and adaptable coprecipitation, sol–gel, hydrothermal, solvothermal, and Stöber methods for the fabrication of nanocomposites are discussed. These materials offer the advantage of magnetic recovery and superior photocatalytic performance. The potential of nanocomposites to act as photocatalysts to eliminate organic pollutants and microbes from water is discussed. Mechanisms involved in these applications are also elaborated upon. The review provides a detailed study of recent applications and future perspectives of nanocomposites in sustainable water treatment.

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Section: Sol-gel Methodsmentioning

confidence: 99%

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Kaur

Sandhu

et al. 2023

Magnetochemistry

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“…As a result, the nanosheets formed during the subsequent washingsteps conducted after the hydrothermal treatment also remain doped with Ag ? ions and decorated with the Ag nanoparticles [46]. However, the presence of these species on the surface results in the formation of nanoplates rather than that of nanotubes.…”

Section: -( O )mentioning

confidence: 98%

Hydrothermal synthesis of highly crystalline nanotubes/nanoplates of pure and silver-doped anatase-titania using acid-catalyst-modified sol–gel precursors

Jose

Kumari

Remya

et al. 2014

J Sol-Gel Sci Technol

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Highly crystalline nanotubes/nanoplates of pure and Ag-doped anatase-titania (TiO 2 ) having high aspect-ratio have been synthesized, without the involvement of thermal treatment, via the hydrothermal method using the acetic-acidmodified sol-gel processed nanocrystalline pure and Agdoped anatase-TiO 2 as precursors. The samples have been characterized for analyzing their morphology, structure, specific surface-area, and surface-chemistry using the transmission electron microscope, selected-area electron diffraction (SAED), X-ray diffraction, Brunauer-Emmett-Teller specific surface-area measurement, and Fourier transform infrared techniques. It has been observed that the hydrothermal treatment of acid-catyalyst-modified pure and Agdoped nanocrystalline anatase-TiO 2 precursors and the subsequent washing of hydrothermal products result in the formation of nanotubes/nanoplates of pure and Ag-doped anatase-TiO 2 instead of those of hydrogen titanate which is invariably obtained with the use of unmodified-precursors. It has been proposed that the formation of nanotubes/nanoplates of pure and Ag-doped anatase-TiO 2 via the hydrothermal method without the involvement of thermal treatment, under the given processing conditions, is due to the operation of double ion-exchange mechanism which is in contrast to that of conventional single ion-exchange mechanism responsible for the formation of nanotubes of hydrogen titanate. The operation of as-proposed double ion-exchange mechanism has been strongly supported by the experimentally observed variation in the solution-pH involved during the washing treatment of hydrothermal product.

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“…[49][50][51][52] An effort to prepare C- doped rutile TiO 2 has also been reported; however, C dopants were not successfully incorporated into the lattice sites. 53 Pure C-doped rutile TiO 2 samples are still very scarce. Recently, black carbon-doped rutile TiO 2 was reported to have been successfully synthesized by the substitution of O at C sites in TiC lm.…”

Section: Optical Absorption and Emissionmentioning

confidence: 99%

Energetics and optical properties of carbon impurities in rutile TiO₂

et al. 2020

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Serendipity following attempts to prepare C-doped rutile TiO2

Cited by 14 publications

References 67 publications

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Hydrothermal synthesis of highly crystalline nanotubes/nanoplates of pure and silver-doped anatase-titania using acid-catalyst-modified sol–gel precursors

Energetics and optical properties of carbon impurities in rutile TiO₂

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Serendipity following attempts to prepare C-doped rutile TiO2

Cited by 14 publications

References 67 publications

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Nanocomposites of Ferrites with TiO2, SiO2 and Carbon Quantum Dots as Photocatalysts for Degradation of Organic Pollutants and Microbes

Hydrothermal synthesis of highly crystalline nanotubes/nanoplates of pure and silver-doped anatase-titania using acid-catalyst-modified sol–gel precursors

Energetics and optical properties of carbon impurities in rutile TiO2

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Energetics and optical properties of carbon impurities in rutile TiO₂