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Chemical Functionalization of Nanodiamond by Amino Groups: An X-Ray Photoelectron Spectroscopy Study

Lookup NU author(s): Dr Yuriy Butenko, Dr Abel Brieva, Paul Coxon, Luís Alves, Professor Lidija Siller

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Abstract

The development of chemical functionalization techniques for diamond nanocrystallites opens up ways with a view to altering their solubility in different solvents, improve interfacial adhesion of nanodiamonds with a composite matrix in new materials, and provide new possibilities for the modification of the electronic properties of nanodiamond crystallites. In this work, we present results on the chemical functionalization of nanodiamonds by amino groups using ammonia as a nitrogenation agent. Nanodiamond material used was formed by the detonation technique with average crystallite sizes of 4-5 nm. The final materials and intermediates products were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Chemical functionalization of nanodiamonds by amino groups could enable the preparation of new nylon nano-composite materials. Presence of surface amino groups could alter pH of nanodiamond colloids towards basic values and improve colloidal stability of nanodiamond suspensions at pH close to 7. This could enable syntheses of new drug delivery systems based on nanodiamonds.

Publication metadata

Author(s): Dhanak VR, Butenko YV, Brieva AC, Coxon PR, Alves L, Siller L

Publication type: Article

Publication status: Published

Journal: Journal of Nanoscience and Nanotechnology

Year: 2012

Volume: 12

Issue: 4

Pages: 3084-3090

Print publication date: 01/04/2012

ISSN (print): 1533-4880

ISSN (electronic): 1533-4899

Publisher: American Scientific Publishers

URL: http://dx.doi.org/10.1166/jnn.2012.4547

DOI: 10.1166/jnn.2012.4547

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