Optical properties of amine-functionalized graphene oxide
- 4 Downloads
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.
KeywordsGraphene oxide Amine functionalization Sensors Optical properties
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.
Compliance with ethical standards
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
- Basiuk EV, Basiuk VA, Meza-Laguna V, Contreras-Torrez FF, Martinez M, Rojas-Aguilar A, Salerno M, Zavala G, Falqui A, Brescia R (2012) Solvent free covalent functionalization of multiwalled carbone nanotubes and nanodiamond whith diamines:looking for cross-linking effect. Appl Surf Sci 259:465–476. https://doi.org/10.1016/j.apsusc.2012.07.068 Google Scholar
- Chen L, Li Y, Chen L, Li N, Dong C, Chen Q, Liu B, Ai Q, Si P, Feng J, Zhang L, Suhr J, Lou J, Ci L (2018a) A large-area free-standing graphene oxide multilayer membrane with high stability for nanofiltration applications. Chem Eng Sci 345(1):536–544. https://doi.org/10.1016/j.cej.2018.03.136 Google Scholar
- Georgakilas V, Tiwari JN, Kemp KC, Perman JA, Bourlinos A, Kim AB, Zboril KS R (2016) Noncovalent functionalization of graphene and graphene oxide for energy materials, biosensing, catalytic, and biomedical applications. Chem Rev 116(9):5464–5519. https://doi.org/10.1021/acs.chemrev.5b00620 Google Scholar
- Jeong YS, Park JB, Jung HG, Kim J, Luo X, Lu J, Curtiss L, Amine K, Sun YK, Scrosati B, Lee YJ (2015) Study on the catalytic activity of noble metal nanoparticles on reduced graphene oxide for oxygen evolution reactions in lithium–air batteries. Nano Lett 15(7):4261–4268. https://doi.org/10.1021/nl504425h Google Scholar
- Zhu X, Xing D (2012) Label-free and sensitive fluorescence detection of nucleic acid, based on combination of graphene oxide/SYBR green I dye platform and polymerase assisted signal amplification. Prog Biomed Opt Imaging Proc SPIE 8553:855337–855337. https://doi.org/10.1371/journal.pone.0108401 Google Scholar