Lombardi Lorenzo, Kovtun Alessandro, Mantovani Sebastiano, Bertuzzi Giulio, Favaretto Laura, Bettini Cristian, Palermo Vincenzo, Melucci Manuela, Bandini Marco
Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum - Università di Bologna, Via Selmi 2, 40126, Bologna, Italy.
Center for Chemical Catalysis - C3, Via Selmi 2, 40126, Bologna, Italy.
Chemistry. 2022 May 6;28(26):e202200333. doi: 10.1002/chem.202200333. Epub 2022 Mar 29.
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.
我们提出了一种环境友好的方法，用于用芳基偶氮砜对还原氧化石墨烯（rGO）纳米片进行共价功能化（芳基化）。通过在水性介质中对碳纳米结构材料悬浮液进行可见光照射，各种带标记的芳基单元可方便地附着在rGO表面。温和的反应条件、无需光敏剂、官能团耐受性以及高原子分数（XPS分析）是该方法的一些显著特征。还报道了用于机理阐释（拉曼分析）和对带标记的rGO表面进行化学纳米操作的对照实验。
