The influence of mechanochemical and microwave modification on the properties of SnO2 as photocatalyst
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SnO2, mechanochemical and microwave treatment, porous structure, photocatalytic activity, dyes, Vis-irradiation

How to Cite

Samsonenko, M. M., & Khalameida, S. V. (2023). The influence of mechanochemical and microwave modification on the properties of SnO2 as photocatalyst. Catalysis and Petrochemistry, (34), 73-85.


Samples of precipitated SnO2 were modified by means of mechanochemical and microwave treatment. Physicochemical properties of all samples were investigated using DTA, XRD, FTIR spectroscopy, nitrogen adsorption-desorption and UV-Vis spectroscopy. Photocatalytic activity was evaluated using the degradation of rhodamine B and safranin T under Vis-irradiation. It was found that the initial precipitated and modified samples correspond to the composition of tin oxyhydroxide - SnO(OH)х. It has been established that as a result of mechanochemical and microwave treatment of tin oxyhydroxide in the wet gel stage, it is possible to obtain photocatalytically active materials with a uniform mesoporous structure and high specific surface values and a band gap of about 3.5-3.6 eV. A peculiarity of the mechanochemical treatment of xerogels in water is the formation of a meso-macroporous structure. Relationship between physicochemical and photocatalytic properties of prepared samples has been discussed. The dependence of the efficiency of photocatalytic degradation of dyes on changes in the porous structure, the presence of defects on the surface of the catalyst, and its electronic characteristics was established.
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Al-Hamdi A.M., Rinner U., Sillanpää M. Tin dioxide as a photocatalyst for water treatment: A review. Process Saf. Environ. Prot. Institution of Chemical Engineers, 2017, 107, 190-205.

Miller T.A. et al. Nanostructured Tin Dioxide Materials for Gas Sensor Applications. Funct. Mater., 2006, 5, 1-24.

Orlandi M.O. Tin oxide materials. Tin Oxide Materials Elsevier Inc., 2020, 1, 1-9.

Matushko I.P. et al. Sensitivity to hydrogen of sensor materials based on SnO2 promoted with 3d metals. Theor. Exp. Chem. 2008, 44(2), 128-133.

Meng X. et al. Tin dioxide ion-gated transistors. Tin Oxide Materials. Elsevier Inc., 2020, 16, 477-488.

Qin Y., et al. Post-synthetic modifications (PSM) on metal-organic frameworks (MOFs) for visible-light-initiated photocatalysis. Dalton Trans., 2021, 50, 13201-13215.

Leboda R., Charmas B., Sidorchuk V. V. Physicochemical and Technological Aspects of the Hydrothermal Modification of Complex Sorbents and Catalysts. Part I. Modification of Porous and Crystalline Structures R. Adsorpt. Sci. Technol., 1997, 15 (3) ,189-214.

Taylor P., Varma R.S. Green Chemistry Letters and Reviews " Greener " chemical syntheses using mechanochemical mixing or microwave and ultrasound irradiation., Green Chem. Lett. Rev. 2007, 1(1), 37-45.

Yang G., Park S.J. Conventional and microwave hydrothermal synthesis and application of functional materials: A review. Materials (Basel), 2019, 12, 1177.

Hinman J.J., Suslick K.S. Nanostructured Materials Synthesis Using Ultrasound. Top. Curr. Chem., 2017, 375, 12.

Szczesniak B., Choma J., Jaronies M. Recent advances in mechanochemical synthesis of mesoporous metal oxides. Mater. Adv., 2021, 2, 2510-2523.

Hernández J.G., et al. European Research in Focus: Mechanochemistry for Sustainable Industry (COST Action MechSustInd). Eur. J. Org. Chem., 2020, 8-9

Vignesh K., et. al. Photocatalytic performance of Ag doped SnO2 nanoparticles modified with curcumin. Solid State Sci., 2013, 21, 91-99.