Multifunctional Tb-doped SnO2 based photocatalytic agent for water remediation: Study of defect-related properties

Kolokolov, Daniil; Fomkina, Anna; Podurets, Anastasiia; Cherkashina, Ksenia; Kolesnikov, Ilya; Bobrysheva, Natalia; Osmolowsky, Mikhail; Bulatov, Andrey; Voznesenskiy, Mikhail; Osmolovskaya, Olga

doi:10.1016/j.ceramint.2023.08.164

Cited by 10 publications

(1 citation statement)

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“…24 However, despite the large number of publications on SnO 2 , the question of improving its photocatalytic efficiency of the material remains open. In our previous work, we have shown that the oxygen vacancy/defect ratio works for SnO 2 doped with 3d 21,25,26 and 4f metal ions 27,28 under visible light, and the maximum number of oxygen vacancies and the minimum number of defects lead to improved photocatalytic activity. At the same time, the solar spectrum does not always provide reproducible results when changing geoposition; moreover, sometimes sewage water plants are located underground.…”

Section: Introductionmentioning

confidence: 99%

Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Skripkin,

Podurets,

Kolokolov

et al. 2024

ACS Appl. Nano Mater.

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Synthetic dyes are widely used in various industries, which inevitably leads to increased water pollution. One of the recognized and waste-free techniques for water treatment is photocatalytic purification using semiconductor nanoparticles. However, the debate on how photocatalytic properties can be tuned through structural and morphological parameters using nanoparticle synthesis procedures remains open. In the present work, an approach to regulate UV-light-driven photocatalytic activity of spherical SnO 2 nanoparticles using different structural parameters is demonstrated for the first time. Complex characterization of nanoparticles was provided using physicochemical methods with the help of computational methods. Special attention was paid to the development of a protocol of oxygen vacancy accounting within computer calculations for more realistic modeling of the interaction energy between nanoparticle surfaces and organic dye molecules of different natures. The photocatalysis mechanism was investigated according to the developed protocol, including the study of dye mixture kinetic degradation, dyephotocatalyst complex formation, and the ratio of oxygen vacancies and defects. It was shown that 93% of single dye decomposed in 7 min, and degradation of the dye mixture in a real water sample from Neva River achieved 60% after 40 min. It was possible to establish that this proof-of-concept study based on the combination of experimental and computational approaches can help develop the strategy of the rational design of photocatalysts promising for purification of real water samples.

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Section: Introductionmentioning

confidence: 99%

Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Skripkin,

Podurets,

Kolokolov

et al. 2024

ACS Appl. Nano Mater.

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Sn0.94Bi0.03X0.03O2 (X = Cu, Zn) semiconductor compositions: enhanced physical, optical, electrical, dielectric, and photocatalytic properties for the elimination of organic contaminants

Massoudi

2024

J Sol-Gel Sci Technol

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Synthesis and characterization of La-doped SnO2 nanoparticles with different shape: A comprehensive study on morphology, structure, and photocatalytic efficiency for eco-friendly wastewater treatment

Kolokolov,

Fomkina,

Podurets

et al. 2024

Ceramics International

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Multifunctional Tb-doped SnO2 based photocatalytic agent for water remediation: Study of defect-related properties

Cited by 10 publications

References 94 publications

Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Sn0.94Bi0.03X0.03O2 (X = Cu, Zn) semiconductor compositions: enhanced physical, optical, electrical, dielectric, and photocatalytic properties for the elimination of organic contaminants

Synthesis and characterization of La-doped SnO2 nanoparticles with different shape: A comprehensive study on morphology, structure, and photocatalytic efficiency for eco-friendly wastewater treatment

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Multifunctional Tb-doped SnO2 based photocatalytic agent for water remediation: Study of defect-related properties

Cited by 10 publications

References 94 publications

Ultrasmall SnO2 Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Ultrasmall SnO2 Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Sn0.94Bi0.03X0.03O2 (X = Cu, Zn) semiconductor compositions: enhanced physical, optical, electrical, dielectric, and photocatalytic properties for the elimination of organic contaminants

Synthesis and characterization of La-doped SnO2 nanoparticles with different shape: A comprehensive study on morphology, structure, and photocatalytic efficiency for eco-friendly wastewater treatment

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Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes

Ultrasmall SnO₂ Nanoparticles: Influence of O-Vacancies on the Photocatalytic Degradation of Dyes