ZnS nanosheets: Egg albumin and microwave-assisted synthesis and optical properties |
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| Institution: | 1. Oncologie-radiothérapie, CHRU de Poitiers, 2, rue de la Milétrie, BP 577, 86021 Poitiers, France;2. Service d’oncologie-radiothérapie, hôpital Tenon, hôpitaux universitaires Est parisien, 4, rue de la Chine, 75020 Paris, France;3. Oncologie-radiothérapie, hôpital Jean-Minjoz, CHRU de Besançon, 3, boulevard Alexandre-Fleming, 25000 Besançon, France;4. Oncologie-radiothérapie, centre Jean-Perrin, CLCC d’Auvergne, 58, rue Montalembert, 63000 Clermont-Ferrand, France;5. Oncologie-radiothérapie, institut Claudius-Régaud, institut universitaire du cancer de Toulouse-Oncopôle, 1, avenue Irène-Joliot-Curie, 31059 Toulouse, France;6. Oncologie-radiothérapie, CHU d’Amiens, place Victor-Pauchet, 80054 Amiens cedex, France;7. Oncologie-radiothérapie, centre hospitalier Princesse-Grace, avenue Pasteur, 98000 Monaco, Monaco;8. Oncologie-radiothérapie, hôpital européen Georges-Pompidou, 20, rue Leblanc, 75015 Paris, France;9. Oncologie-radiothérapie, institut universitaire de la face et du cou, centre Antoine-Lacassagne, 33, avenue de Valombrose, 06189 Nice cedex 2, France;10. Service d’oncologie-radiothérapie, ICM-Val d’Aurelle, 208, rue des Apothicaires, parc Euromédecine, 34298 Montpellier cedex 05, France;11. Oncologie-radiothérapie, centre catalan d’oncologie, 80, rue Pascal-Marie-Agasse, 66000 Perpignan, France;12. Oncologie-radiothérapie, centre de haute énergie, 10, boulevard Pasteur, 06000 Nice, France;1. Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi''an 710062, China;2. College of Chemistry & Chemical Engineering, Xianyang Normal University, Xianyang 712000, China;1. Department of Physics, Yancheng Institute of Technology, Jiangsu 224051, China;2. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;1. College of Science and Technology, Xinyang College, Xinyang 464000, China;2. College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China;3. School of Chemistry and Chemical Engineering, Zhou Kou Normal University, Zhou Kou 466001, China;1. Liver Transplantation Center, Florence Nightingale Hospital, Istanbul, Turkey |
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| Abstract: | ZnS nanosheets were prepared via egg albumin and microwave-assisted method. The phases, crystalline lattice structures, morphologies, chemical and optical properties were characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), field-emission scanning electron microscope(FE-SEM), selected area electron diffraction (SAED), Fourier transform infrared (FTIR) spectroscopy, ultraviolet–visible (UV–Vis) spectroscopy and fluorescence(FL) spectrometer and growth mechanism of ZnS nanosheets was investigated. The results showed that all samples were pure cubic zinc blende with polycrystalline structure. The width of ZnS nanosheets with a rectangular nanostructure was in the range of 450–750 nm. The chemical interaction existed between egg albumin molecules and ZnS nanoparticles via the amide/carboxylate group. The band gap value calculated was 3.72 eV. The band at around 440 nm was attributed to the sulfur vacancies of the ZnS nanosheets. With increasing volumes of egg albumin, the photoluminescence (PL) intensity of ZnS samples firstly increased and then decreased, attributed to concentration quenching. |
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| Keywords: | Semiconductors Crystal growth Optical properties X-ray diffraction Crystal structure |
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