Visible-Light Assisted Covalent Surface Functionalization of Reduced Graphene Oxide Nanosheets with Arylazo Sulfones.

Authors :: Lombardi L
Kovtun A
Mantovani S
Bertuzzi G
Favaretto L
Bettini C
Palermo V
Melucci M
Bandini M
Source :: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2022 May 06; Vol. 28 (26), pp. e202200333. Date of Electronic Publication: 2022 Mar 29.
Publication Year :: 2022
Abstract: We present an environmentally benign methodology for the covalent functionalization (arylation) of reduced graphene oxide (rGO) nanosheets with arylazo sulfones. A variety of tagged aryl units were conveniently accommodated at the rGO surface via visible-light irradiation of suspensions of carbon nanostructured materials in aqueous media. Mild reaction conditions, absence of photosensitizers, functional group tolerance and high atomic fractions (XPS analysis) represent some of the salient features characterizing the present methodology. Control experiments for the mechanistic elucidation (Raman analysis) and chemical nanomanipulation of the tagged rGO surfaces are also reported.<br /> (© 2022 Wiley-VCH GmbH.)

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