Defect Related Photocatalytic and Photoluminescent Characteristics of Gd-Doped Sno2 Nanoparticles with Different Shapes DOI
Daniil Kolokolov, Anastasiia Podurets, Anna Fomkina

et al.

Published: Jan. 1, 2023

A new method for the preparation of Gd-doped SnO2 nanoparticles based on precipitation followed by hydrothermal treatment has been developed. Two different shape series with Gd content were obtained and fully characterized using a wide range methods, including XRD, FTIR, XPS Raman spectroscopy, TEM imaging, SSA evaluation, optical absorption spectra study, luminescence quantum chemical calculations.It was shown that mechanism oriented attachment nanoparticle growth is stimulated during treatment. Quantum computer calculations interaction energies performed role ions in reaction media revealed. study photoluminescence carried out, showing presence blue corresponding to emission oxygen vacancies.Photocatalytic activity when irradiated visible light shown, which explained demonstrated example colored solution organic dye methylene blue. The relation between morphological structural properties their photocatalytic studied detail. high degradation percentage achieved regular commercially available LED lamp spectrum. concept development efficient photocatalysts computational experiments proposed.

Language: Английский

Effect of pH on the structure and fluorescence properties of a silica-based hybrid composite prepared by the sol-gel method DOI
G. Ortega‐Zarzosa, J. R. Martı́nez, D.L. Espericueta

et al.

Physica B Condensed Matter, Journal Year: 2023, Volume and Issue: 668, P. 415254 - 415254

Published: Aug. 25, 2023

Language: Английский

Citations

1
Conjugated Polyvinyl Alcohol Modified SnO2 for Efficient Visible Light Photocatalytic Reduction of Cr(VI) DOI Creative Commons
Shaojie Chen, Yuanyuan Luo,

Yuhan Xu

et al.

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2024, Volume and Issue: 19(4), P. 609 - 621

Published: Nov. 16, 2024

The photocatalytic activity of tin dioxide (SnO2) is limited due to its inadequate response the solar spectrum, wide band gap, and low visible light activity. Here, we synthesized conjugated polyvinyl alcohol (CPVA) modified (CPVA/SnO2) through in-situ hydrothermal synthesis evaluated performance for reduction hexavalent chromium Cr(VI). A series testing characterization results revealed that CPVA was uniformly coated on surface SnO2, forming a mesoporous CPVA/SnO2 heterojunction with enhanced crystallinity reduced oxygen defects, which resulted in an expanded absorption range towards red region. reaction rate constant CPVA/SnO2-A Cr(VI) under (0.060 min-1) 6 times higher than homemade CPVA/TiO2 2.87 SnO2 UV (0.0209 min-1). mechanism indicates exhibited significantly UV-light irradiation by type II heterojunction. When exposed light, photogenerated electrons lowest unoccupied molecular orbital (LUMO) were efficiently transferred heterojunction, reducing electron-hole recombination while also photosensitizing photocatalyst promoting efficient photocatalysis illumination. Ultimately, this process effectively reduces Cr(III). Copyright © 2024 Authors, Published BCREC Publishing Group. This open access article CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Language: Английский

Citations

0
Design, synthesis and characterization of ceria: assessment of crystallite size and intrinsic strain using XRD profile analysis and its photocatalytic applications DOI

Laouedj Nadjia,

Elaziouti Abdelkader

Journal of the Iranian Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Language: Английский

Citations

0
Defect Related Photocatalytic and Photoluminescent Characteristics of Gd-Doped Sno2 Nanoparticles with Different Shapes DOI
Daniil Kolokolov, Anastasiia Podurets, Anna Fomkina

et al.

Published: Jan. 1, 2023

A new method for the preparation of Gd-doped SnO2 nanoparticles based on precipitation followed by hydrothermal treatment has been developed. Two different shape series with Gd content were obtained and fully characterized using a wide range methods, including XRD, FTIR, XPS Raman spectroscopy, TEM imaging, SSA evaluation, optical absorption spectra study, luminescence quantum chemical calculations.It was shown that mechanism oriented attachment nanoparticle growth is stimulated during treatment. Quantum computer calculations interaction energies performed role ions in reaction media revealed. study photoluminescence carried out, showing presence blue corresponding to emission oxygen vacancies.Photocatalytic activity when irradiated visible light shown, which explained demonstrated example colored solution organic dye methylene blue. The relation between morphological structural properties their photocatalytic studied detail. high degradation percentage achieved regular commercially available LED lamp spectrum. concept development efficient photocatalysts computational experiments proposed.

Language: Английский

Citations

0