Download e-book for kindle: Carbon Quantum Dots: Synthesis, Properties and Applications by Raz Jelinek

By Raz Jelinek

This ebook introduces many of the facets of the rising box of carbon dots. Their structural and physico-chemical houses in addition to their present and destiny power functions are lined. a unique bankruptcy on graphene quantum dots is supplied. The reader also will locate diverse synthesis routes for carbon quantum dots.

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Lin, H. Jiang, X. S. M. Luk, S. Zeng, J. P. Lau, ACS Nano 6, 5102–5110 (2012) 14. M. Xu, G. He, Z. Li, F. He, F. Gao, Y. Su, L. Zhang, Z. Yang, Y. Zhang, Nanoscale 6, 10307– 10315 (2014) 15. F. Wang, S. Pang, L. Wang, Q. Li, M. -Y. Liu, Chem. Mater. 22, 4528–4530 (2010) 16. K. Jiang, S. Sun, L. Zhang, Y. Wang, C. Cai, H. Lin, ACS Appl. Mater. Interfaces 7, 23231– 23238 (2015) 17. Y. Hu, J. Yang, J. Tian, L. -S. Yu, Waste frying oil as a precursor for one-step synthesis of sulfur-doped carbon dots with pH-sensitive photoluminescence.

S. Urban and colleagues at the Ludwig-Maximilians-Universitaet, Germany, conducted a careful comparison between the optical properties of Carbon-Dots embedded within a polymer matrix and poly-aromatic hydrocarbons (PAHs) that were similarly encapsulated within the polymer host, enabling control over concentrations and compositions of the emitting species [3]. The model proposed by the researchers, outlined in Fig. , molecular units containing carbon in the sp2 hybridization) embedded within a matrix of amorphous carbon.

23 Generation of graphene quantum dots through Fenton reaction of graphene oxide (GO). The scheme shows the fragmentation of the GO sheet following oxidation by the Fenton reagent, ultimately yielding GQDs. Reprinted with permission from Zhou et al. [30]. Copyright (2012) American Chemical Society Fig. 24 Fabrication of graphene quantum dots using an array of gold nanoparticles and polymer micelles. a preparation of a graphene film; b an array of polymer micelle-coated Au nanoparticles (NPs) placed upon the film; c plasma etching removes the organic substances, leaving behind the Au NPs and graphene fragments underneath; d GQDs are produced after removal of the Au NPs.

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