Morphology, surface structure, and photoluminescence of nanosized titania composites with oxide carbonitride (C3N4Ox) for optic application

Editorial Board PCSS Journal; M.M. Zahornyi; O.Y. Khyzhun; O.M. Lavrynenko; A.V. Ragulya

doi:10.15330/pcss.27.3.573-579

Authors

M.M. Zahornyi Frantsevich Institute for Problems of Materials Science National Academy of Sciences of Ukraine, Kyiv, Ukraine
O.Y. Khyzhun Frantsevich Institute for Problems of Materials Science National Academy of Sciences of Ukraine, Kyiv, Ukraine; Nanotechcenter LLC. Kyiv, Ukraine
O.M. Lavrynenko Frantsevich Institute for Problems of Materials Science National Academy of Sciences of Ukraine, Kyiv, Ukraine; Nanotechcenter LLC. Kyiv, Ukraine
A.V. Ragulya Frantsevich Institute for Problems of Materials Science National Academy of Sciences of Ukraine, Kyiv, Ukraine; Nanotechcenter LLC. Kyiv, Ukraine

DOI:

https://doi.org/10.15330/pcss.27.3.573-579

Keywords:

Optical activity, XPS, photoluminescence, C3N4Ox /TiO2, SXES C K-alpha

Abstract

The morphology and structure of the prepared nanomaterials were characterized by scanning electron microscopy, infrared, soft X-ray emission spectroscopy (SXES C Ka), X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL). The combination of C₃N₄O_x with anatase in the composite allowed the expansion of the photosensitivity of TiO₂ in the visible spectrum region, with spectral absorbance occurring above 400 nm and decreasing band gap to 2.2 eV.

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