Journal
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
Volume 671, Issue 1, Pages 17-23Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421406.2018.1542080
Keywords
Biosynthesized SnO2; Congo red; microwave synthesis; photocatalytic activity; XRD
Funding
- Ministry of Education and Science of Ukraine [0118U000258]
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In this study, SnO2 has been synthesized using Andrographis Paniculata (A. Paniculata) by microwave-assisted method. It is also characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). It exhibits the tetragonal structure with average crystallite size of 27 nm. The stretching vibration peak of Sn-O-Sn is 670 cm(-1). SEM reveals the formation of nanoparticles. The bandgap was estimated by the tauc's relation as 3.52 eV from the UV-Visible (UV-Vis) spectra. Biosynthesized SnO2 nanoparticles show excellent photocatalytic activity against Congo red dye under sunlight irradiation.
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