Enhanced dispersibility of graphitic carbon nitride particles in aqueous and organic media via a one-pot grafting approach

Kumru, B., Antonietti, M. and Schmidt, B. V.K.J. (2017) Enhanced dispersibility of graphitic carbon nitride particles in aqueous and organic media via a one-pot grafting approach. Langmuir, 33(38), pp. 9897-9906. (doi:10.1021/acs.langmuir.7b02441) (PMID:28845993)

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Abstract

A facile route to synthesize hydrophilically or hydrophobically grafted graphitic carbon nitride (g-CN) is reported. For this purpose, functionalized olefinic molecules with a low polymerization tendency are utilized for grafting onto the surface to preserve the features of g-CN while improving its dispersibility. One-pot, visible light-induced grafting yields highly dispersible g-CNs either in aqueous or organic media. Moreover, functional groups such as amines can be introduced, which yields pH-dependent dispersibility in aqueous media. Compared with unfunctionalized g-CN, low sonication times are sufficient to redisperse g-CN. In addition, because of increased dispersion stability, higher amounts of functionalized g-CN can be dispersed (up to 10% in aqueous dispersion and 2% in organic dispersion) when compared to unfunctionalized g-CN.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Schmidt, Dr Bernhard
Authors: Kumru, B., Antonietti, M., and Schmidt, B. V.K.J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Langmuir
Publisher:American Chemical Society
ISSN:0743-7463
ISSN (Online):1520-5827
Published Online:28 August 2017

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