Microwave-assisted preparation of 1D NCS for photodegradation process of organic dyes / A. Żaba, K. Matras-Postolek, S. Sovinska, D. Bogdal // W: AMPERE 2019: 17th International Conference on Microwave ... więcej

Microwave-assisted preparation of 1D NCS for photodegradation process of organic dyes / A. Żaba, K. Matras-Postolek, S. Sovinska, D. Bogdal // W: AMPERE 2019: 17th International Conference on Microwave and High Frequency Heating, Valencia, Spain, September 9-12, 2019 [Dokument elektroniczny] / sci. ed. Beatriz García Baños. – València : Editorial Universitat Politècnica de València, 2019. – S. 418-424 : fot., tab., wykr. – Tryb dostępu: http://ocs.editorial.upv.es/index.php/AMPERE2019/AMPERE2019/paper/viewFile/9998/5028. – Bibliogr. 35 poz. – doi: 10.4995/Ampere2019.2019.9998. – ISBN 978-84-9048-719-8

Zinc sulphide (ZnS) and zinc selenide (ZnSe) and manganese-doped and un-doped with different morphologies from 1D do 3D microflowers were successfully fabricated in only a few minutes by solvothermal reactions ... więcej

Zinc sulphide (ZnS) and zinc selenide (ZnSe) and manganese-doped and un-doped with different morphologies from 1D do 3D microflowers were successfully fabricated in only a few minutes by solvothermal reactions under microwave irradiation. In order to compare the effect of microwave heating on the properties of obtained nanocrystals, additionally the synthesis under conventional heating was conducted additionally in similar conditions. The obtained nanocrystals were systematically characterized in terms of structural and optical properties using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance UV-Vis spectroscopy (DR UV-Vis), Fourier-transform infrared spectroscopy (FT-IR), photoluminescence spectroscopy (PL), X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) surface area analysis. The photocatalytic activity of ZnSe, ZnS, ZnS:Mn and ZnSe:Mn nanocrystals with different morphologies was evaluated by the degradation of methyl orange (MO) and Rhodamine 6G (R6G), respectively. The results show that Mn doped NCs samples had higher coefficient of degradation of organic dyes under ultraviolet irradiation (UV).