Visible light enhanced photocatalytic degradation of organic pollutants with SiO 2 /g-C 3 N 4 nanocomposite for environmental applications.

Autor: Shoran S; Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, Haryana, India., Sharma A; Department of Physics Under School of Engineering and Technology, Central University of Haryana, Mahendragarh, 123031, Haryana, India., Chaudhary S; Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, Haryana, India. sudesh.energy@dcrustm.org.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Sep; Vol. 30 (44), pp. 98732-98746. Date of Electronic Publication: 2023 Jan 09.
DOI: 10.1007/s11356-022-24837-1
Abstrakt: The development of eco-friendly photocatalysts is gaining attention as an effective approach for degrading organic pollutants. In the present study, the composite materials are composed of various components with varying structures that combine to enhance their characteristics and widen their applications. This work uses the hydrothermal method for the fabrication of a novel and steady SiO 2 /g-C 3 N 4 photocatalyst. The amount of SiO 2 was fixed, and graphitic carbon nitride (g-C 3 N 4 ) was varied in the ratio (1:x, where x = 1, 2, 3) and abbreviated as SCN1, SCN2, and SCN3. The optical properties, surface morphology, and structural analysis of the prepared nanocomposites were studied using various techniques such as FTIR, TGA, X-ray diffraction, and ultraviolet-visible spectroscopy. The results show that SCN2 nanocomposites significantly improved the photocatalytic activity, with a degradation efficiency of 70% for auramine O and 84.6% for xylenol orange dye under visible light irradiation, which is a result of their large surface area and efficient electron-hole separation rate.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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