High fluorescent sulfur regulating graphene quantum dots with tunable photoluminescence properties Original Research Article Journal of Colloid and Interface Science, Available online 7 June 2018, Pages Yi Luo, Ming Li, Lang Sun, Yongjie Xu, Ming Li, Guanghui Hu, Tao Tang, Jianfeng Wen, Xinyu Li, Jiye Zhang, Liang Wang
Graphical abstractThrough regulating the content of S powders in S-GQDs synthesizing process, the optimal S-GQDs have a high S/C atomic ratio of 19.53%. The S doping introduce more functional groups on the C sp2 skeleton of S-3 sample and result in the appearance of the strong absorption band in the UV region. In comparison with other reported S-GQDs, the S-GQDs exhibit overwhelming high fluorescence quantum yield (57%) and excitation-independent emission, resulting from the outcome of the doped sulfur atoms. Moreover, the PL intensity of GQDs can be increased by doping it with S and the increasing efficiency depends on the thiophene sulfur content.

| Dye-sensitized nanoparticles for heterogeneous photocatalysis: Cases studies with TiO2, ZnO, fullerene and graphene for water purification Review Article Dyes and Pigments, Available online 6 June 2018, Pages Zahraa Youssef, Ludovic Colombeau, Nurlykyz Yesmurzayeva, Francis Baros, Régis Vanderesse, Tayssir Hamieh, Joumana Toufaily, Céline Frochot, Thibault Roques-Carmes | Strongly coupled perylene bisimide/reduced graphene oxide as organic cathode materials for lithium ion batteries Original Research Article Electrochimica Acta, Available online 6 June 2018, Pages Wei Deng, Jing Yu, Yuting Qian, Rubing Wang, Zaka Ullah, Shoupu Zhu, Mingliang Chen, Weiwei Li, Yufen Guo, Qi Li, Liwei Liu | Enhancing lithium-ion batteries performance via electron-beam irradiation strategies: A case study of graphene aerogels loaded with SnO2 quantum dots Original Research Article Electrochimica Acta, Available online 6 June 2018, Pages Shoushuang Huang, Wenfeng Wang, Dayong Chen, Zhangjun Hu, Yong Jiang, Zhiwen Chen, Zhen Li, Dengyu Pan, Bing Zhao
Graphical abstractUltrathin cross-stacked graphene aerogels loaded with SnO2 quantum dots has been successfully fabricated by a simple hydrothermal method with graphene oxide and Sn as the precursors. The composites were intentionally irradiated by electron-beam with different irradiation dose to modify its surface and structure. It was found that the SnO2-QDs/Gas-HCl composite irradiated at 280 kGy showed an excellent cycling and outstanding rate performances.Image 1
 | |
No comments:
Post a Comment