Photocatalytic Synthesis of Oxidized Graphite Enabled by Grey TiO2 and Direct Formation of a Visible-Light-Active Titania/Graphene Oxide Nanocomposite

Nasir A, Mazare AV, Zhou X, Qin S, Denisov N, Zdrazil L, Kment S, Zboril R, Yasin T, Schmuki P (2022)

Publication Type: Journal article

Publication year: 2022

Journal

DOI: 10.1002/cptc.202100274

Abstract

Herein we report a one-step, low cost, photocatalytic method for the synthesis of graphene oxide (GO) from commercial graphite using grey TiO2 as a photocatalyst. GO formation is achieved by UV-illumination of a slurry of well-dispersed grey TiO2 and commercial graphite. Light-induced valence-band holes from grey TiO2 then lead to an oxidation and exfoliation of graphite, resulting in the formation of visible-light-active GO. An optimal level of graphite oxidation can be established by controlling the UV illumination time. Moreover, the resulting GO-decorated TiO2 is directly active as a visible-light-active photocatalyst that can, for example, be used for pollution degradation.

Authors with CRIS profile

Involved external institutions

Palacky University Olomouc / Univerzita Palackého v Olomouci Czech Republic (CZ) Pakistan Institute of Engineering & Applied Sciences (PIEAS) Pakistan (PK)

How to cite

APA:

Nasir, A., Mazare, A.V., Zhou, X., Qin, S., Denisov, N., Zdrazil, L.,... Schmuki, P. (2022). Photocatalytic Synthesis of Oxidized Graphite Enabled by Grey TiO2 and Direct Formation of a Visible-Light-Active Titania/Graphene Oxide Nanocomposite. Chemphotochem. https://doi.org/10.1002/cptc.202100274

MLA:

Nasir, Amara, et al. "Photocatalytic Synthesis of Oxidized Graphite Enabled by Grey TiO2 and Direct Formation of a Visible-Light-Active Titania/Graphene Oxide Nanocomposite." Chemphotochem (2022).

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