Molecular scale rapid synthesis of graphene quantum dots (GQDs)
Source abstract
Abstract
Graphene quantum dots (GQDs) as a new series of nanomaterials have drawn great attention in recent years owning to their unique properties. Here we report the single-step synthesis of GQDs using pyrolysis of citric acid which produced GQDs at different pH. The effect of different pH was studied in detail to optimize the conditions of the formation of GQDs. UV–Visible absorption and normalized fluorescence spectra were applied to analyze the optical properties of GQDs. The particle size distribution of the GQDs in case of varying pH was determined to optimize the synthesis conditions. The surface morphology and microstructures were studied by atomic force microscope (AFM).
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Nanocluster Synthesis and Applications · Graphene and Nanomaterials Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Geim, A.K., Novoselov, K.S.: The rise of graphene. Nat. Mater. 6, 183–191 (2007)10.1038/nmat1849 ↗
2. Novoselov, K.S., Geim, A.K., Morozov, S.V., Jiang, D., Zhang, Y., Dubonos, S.V., Grigorieva, I.V., Firsov, A.A.: Electric field effect in atomically thin carbon films. Science 306, 666–669 (2004)10.1126/science.1102896 ↗
3. Bolotin, K.I., Sikes, K.J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P., Stormer, H.L.: Ultrahigh electron mobility in suspended graphene. Solid State Commun. 146, 351–355 (2008)10.1016/j.ssc.2008.02.024 ↗
4. Ponomarenko, L.A., Schedin, F., Katsnelson, M.I., Yang, R., Hill, E.W., Novoselov, K.S., Geim, A.K.: Chaotic Dirac billiard in graphene quantum dots. Science 320, 356–358 (2008)10.1126/science.1154663 ↗
5. Trauzettel, B., Bulaev, D.V., Loss, D., Burkard, G.: Spin qubits in graphene quantum dots. Nat. Phys. 3, 192–196 (2007)10.1038/nphys544 ↗
6. Ahmed, S.H., Radwa, A.S., Nageh, K.A.: Graphene Quantum Sheets with Multiband Emission: Unravelling the Molecular Origin of Graphene Quantum Dots. J. Phys. Chem. C 120(52), 21678–21684 (2016)
7. Zhixing, G., Hao, X., Ying, F.: Photon Reabsorption and Nonradiative Energy-Transfer-Induced Quenching of Blue Photoluminescence from Aggregated Graphene Quantum Dots. J. Phys. Chem. C 120(51), 29432–29438 (2016)10.1021/acs.jpcc.6b10704 ↗
8. Baker, S.N., Baker, G.A.: Luminescent carbon nanodots: emergent nanolights. Angew. Chem. Int. Ed. 49(38), 6726–6744 (2010)10.1002/anie.200906623 ↗
9. Cao, L., Meziani, M.J., Sahu, S., Sun, Y.P.: Photoluminescence properties of graphene versus other carbon nanomaterials. Acc. Chem. Res. 46(1), 171–180 (2013)10.1021/ar300128j ↗
10. Jiang, H.J.: Chemical preparation of graphene-based nanomaterials and their applications in chemical and biological sensors. Small 7(17), 2413–2427 (2011)10.1002/smll.201190064 ↗
11. Recher, P., Trauzettel, B.: Quantum dots and spin qubits in graphene. Nanotechnology 21(30), 302001 (2010)10.1088/0957-4484/21/30/302001 ↗
12. Rozhkov, A.V., Giavaras, G., Bliokh, Y.P., Freilikher, V., Nori, F.: Electronic properties of mesoscopic graphene structures: charge confinement and control of spin and charge transport. Phys. Rep. 503, 77–114 (2011)10.1016/j.physrep.2011.02.002 ↗
13. Sheng, W.D., Korkusinski, M., Guclu, A.D., Zielinski, M., Potasz, P., Kadantsev, E.S., Voznyy, O., Hawrylak, P.: Electronic and optical properties of semiconductor and graphene quantum dots. Front. Phys. 7(3), 328–352 (2012)10.1007/s11467-011-0200-5 ↗
14. Zhang, Z., Zhang, J., Chen, N., Qu, L.: Graphene quantum dots: an emerging material for energy-related applications and beyond. Energy Environ. Sci. 5, 8869–8890 (2012)10.1039/c2ee22982j ↗
15. Shen, J., Zhu, Y., Yang, X., Li, C.: Graphene quantum dots: emergent nanolights for bioimaging, sensors, catalysis and photovoltaic devices. Chem. Commun. 48, 3686–3699 (2012)10.1039/c2cc00110a ↗
16. Liu, W., Feng, Y., Yan, X., Chen, J., Xue, Q.: Superior micro-supercapacitors based on graphene quantum dots. Adv. Funct. Mater. 23, 4111–4122 (2013)10.1002/adfm.201203771 ↗
17. Chao, D., Zhu, C., Xia, X., Liu, J., Zhang, X., Wang, J.: Graphene quantum dots coated VO2 arrays for highly durable electrodes for Li and Na ion batteries. Nano Lett. 15, 565–573 (2014)10.1021/nl504038s ↗
18. Pan, D., Xi, C., Li, Z., Wang, L., Chen, Z., Lu, B.: Electrophoretic fabrication of highly robust, efficient, and benign heterojunction photoelectrocatalysts based on graphene-quantum-dot sensitized TiO2 nanotube arrays. J. Mater. Chem. A 1, 3551–3555 (2013)10.1039/c3ta00059a ↗
19. Ding, Z., Hao, Z., Meng, B., Xie, Z., Liu, J., Dai, L.: Few-layered graphene quantum dots as efficient hole-extraction layer for high-performance polymer solar cells. Nano Energy 15, 186–192 (2015)10.1016/j.nanoen.2015.04.019 ↗
20. Harhaji-Trajkovic, L.M., Todorovic-Markovic, B.M., Kepic, D.P., Kravic-Stevovic, T.K., Jovanovic, S.P., Milenkovic, M.M., Milivojevic, D.D., Bumbasirevic, V.Z., Dramicanin, M.D., Trajkovic, V.S.: Graphene quantum dots as autophagy-inducing photodynamic agents. Biomaterials 33, 7084–7092 (2012)10.1016/j.biomaterials.2012.06.060 ↗
21. Lu, W., Qin, X., Liu, S., Chang, G., Zhang, Y., Luo, Y., Asiri, A.M., Al-Youbi, A.O., Sun, X.: Economical, green synthesis of fluorescent carbon nanoparticles and their use as probes for sensitive and selective detection of mercury (II) Ions. Anal. Chem. 84, 5351–5357 (2012)10.1021/ac3007939 ↗
22. Liu, S., Tian, J., Wang, L., Zhang, Y., Luo, Y., Asiri, A.M., Al-Youbi, A.O., Sun, X.: A novel acid-driven, microwave-assisted, one-pot strategy toward rapid production of graphitic N-doped carbon nanoparticles-decorated carbon flakes from N,N-dimethylformamide and their application in removal of dye from water. RSC Adv. 2, 4632–4635 (2012)10.1039/c2ra20381b ↗
23. Liu, S., Tian, J., Wang, L., Luo, Y., Sun, X.: A general strategy for the production of photoluminescent carbon nitride dots from organic amines and their application as novel peroxidase-like catalysts for colorimetric detection of H2O2 and glucose. RSC Adv. 2, 411–413 (2012)10.1039/C1RA00709B ↗
24. Fan, Tianju, Zeng, Wenjin, Tang, Wei, Yuan, Chunqiu, et al.: Controllable size-selective method to prepare graphene quantum dots from graphene oxide. Nanoscale Res. Lett. 10, 55–63 (2015)10.1186/s11671-015-0783-9 ↗
25. Yin, Hu, Da-Wei, He, Yong-Shen, Wang, Jia-Hua, Duan, et al.: An approach to controlling the fluorescence of graphene quantum dots: from surface oxidation to fluorescent mechanism. Chin. Phys. B 23, 128103–128107 (2014)10.1088/1674-1056/23/12/128103 ↗
26. Dong, L.M., Shi, D.Y., Wu, Z., Li, Q., Han, Z.D.: Improved solvothermal method for cutting graphene oxide into graphene quantum dots. Dig. J. Nanomater. Biostruct. 10, 855–864 (2015)
27. Sutradhar, P., Saha, M.: Silver Nanoparticles: Synthesis and Its Nanocomposites for Heterojunction Polymer Solar Cells. J. Phys. Chem. C 120, 8941–8949 (2016)10.1021/acs.jpcc.6b00075 ↗
28. Sutradhar, P., Saha, M.: Size-controlled synthesis of silver nanoparticles using Zizyphus mauritiana fruit extract. Main Group Chem. 15, 47–55 (2016)10.3233/MGC-150182 ↗
29. Sutradhar, P., Saha, M.: Green synthesis of zinc oxide nanoparticles using tomato (Lycopersicon esculentum) extract and its photovoltaic application. J. Exp. Nanosci. 19, 314–327 (2015)