SnO2 nanoparticles: synthesis, characterization and photocatalytic activity

Thao Ho Hoang Nhu, Giang Tran Chau, Nhat Nguyen Bich, Han Le Thi Ngoc, Trinh Nguyen Ai, Vien Huynh Thi Thuy, Thu Phan Nguyen Anh, Kim Nguyen Van

Abstract


SnO2 nanoparticles have been synthesized using precipitation method and heat treatment. Firstly, SnCl4.5H2O was reacted with NaOH solution, and than the precipitate heat treated at 350 oC, 450 oC and 550 oC. The obtained materials were characterized by X-Ray diffraction (XRD), infrared spectra (IR), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM) and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). The photocatalytic degradation of rhodamine B (RhB) using SnO2 nanoparticles was investigated. The results show that the SnO2 nanoparticles exhibited a significantly enhanced photocatalytic activity. The photoactivity of SnO2 nanoparticles photocatalysts can be ascribed to the enhanced electron-hole separation.

Keywords


SnO2; nanoparticles; photoactivity; solar light; rhodamine B

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References


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DOI: https://doi.org/10.51316/jca.2022.003

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