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HomeMaterials Science ForumMaterials Science Forum Vol. 1098Carbon Dots Modification Surface of Titanium...

Carbon Dots Modification Surface of Titanium Dioxide and Their Photocatalytic Activity

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Abstract:

This work, we develop the efficient visible-light-responsive titanium dioxide photocatalyst using carbon dots as a sensitizer (C-dots/TiO₂). C-dots was synthesized via a simple one-pot reaction by microwave-assisted pyrolysis method using orange juice as carbon precursors. C-dots/TiO₂samples were prepared by a facile route. Moreover, the micro-structure and optical properties of as-prepared C-dots/TiO₂ have been evaluated using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and ultraviolet–visible diffuse reflection spectroscopy (DRS). The modification surface of TiO₂ with carbon dots enhanced the light absorption in visible region. The photocatalytic properties of as-prepared pure TiO₂ and C-dots/TiO₂ were also explored indigo carmine decolorization under visible light. The photocatalytic results revealed that the C-dots/TiO₂ exhibited higher catalytic performance than the pure TiO₂ under visible light.

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Periodical:

Materials Science Forum (Volume 1098)

Pages:

165-171

DOI:

https://doi.org/10.4028/p-8REcTE

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Online since:

September 2023

Authors:

Ganyaporn Wongwaen, Cheewita Suwanchawalit*, Narit Triamnak

Keywords:

Carbon Dots, Carbon dots/TiO₂, Photocatalysis, Visible Light Irradiation

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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