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Optical properties of amine-functionalized graphene oxide

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Abstract

Important applications of graphene oxide (GO) its derivatives have been found in several areas: energy materials, water treatment, environmental, catalytic, photocatalytic, and biomedical technologies. Among them, the application of GO in optical biosensors has attracted ever-increasing interest in the past few years. In the present work, GO was amine-functionalized by a solvent-free one-step method with two aromatic amines: 1-aminopyrene (AP), and 2-aminofluorene (AF); and one aliphatic amine 1-octadecylamine (ODA). Particle size was estimated by field emission-scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). Optical properties have been evaluated by application of photoluminescence (PL), FTIR, UV–VIS, and Raman spectroscopy. As a result, this study offers an efficient way to tune the optical properties due to their amine functionalization, favoring the development of optoelectronic and biological applications using graphene-based materials in the future.

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Acknowledgements

A financial support from the Secretary of Investigation and Postgraduate Study of Instituto Politécnico Nacional (Mexico), National Autonomous University of Mexico (Grant DGAPA-IN101118), and the National Council of Science and Technology of Mexico (CONACYT, Grant 250655) is greatly appreciated. The authors are grateful to Dr. Natalia Alzate Carvajal for sharing the functionalized GO samples.

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Correspondence to J. Douda.

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Douda, J., González Vargas, C.R., Basiuk, E.V. et al. Optical properties of amine-functionalized graphene oxide. Appl Nanosci 9, 567–578 (2019). https://doi.org/10.1007/s13204-019-00956-z

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  • DOI: https://doi.org/10.1007/s13204-019-00956-z

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