Photodegradation process of organic dyes in the presence of a manganese-doped zinc sulfide nanowire photocatalyst / Adam Żaba, Svitlana Sovinska, Tetiana Kirish, Adam Węgrzynowicz, Katarzyna Matras-Postołek ... więcej

Photodegradation process of organic dyes in the presence of a manganese-doped zinc sulfide nanowire photocatalyst / Adam Żaba, Svitlana Sovinska, Tetiana Kirish, Adam Węgrzynowicz, Katarzyna Matras-Postołek // Materials [Dokument elektroniczny]. – 2021, Vol. 14, Iss. 19, Spec. Iss., 21 s. : fot., tab., wykr. – Tryb dostępu: https://www.mdpi.com/1996-1944/14/19/5840. – Oznaczenie ref./art.: 5840. – Bibliogr. 41 poz., Abstr. – Special Issue: Photoresponsive Nanomaterials for Advanced Application. – doi: 10.3390/ma14195840. – ISSN 1996-1944

Zinc sulfide (ZnS) nanowires represent a promising candidate in many fields, including optoelectronics and photocatalysis because of their advantages such as excellent optical properties, chemical stability ... więcej

Zinc sulfide (ZnS) nanowires represent a promising candidate in many fields, including optoelectronics and photocatalysis because of their advantages such as excellent optical properties, chemical stability and an easy-scalable simple synthesis method. In this study, an energy-friendly microwave radiation process was used to develop the single-step, solvothermal process for the growth of manganese-doped zinc sulfide (ZnS) and undoped nanocrystals (NCs) in the forms of nanowires using two short amines as a stabilizer, e.g., ethylenediamine and hydrazine, respectively. ZnS nanowires doped with Mn atoms show absorbance in UV and in the visible region of the spectrum. The photocatalytic degradation of rhodamine B in the presence of Mn-doped and undoped ZnS nanocrystals illuminated with only a 6-W UV lamp has been comprehensively studied. The effect of Mn doping and the presence of a nanocrystal stabilizer on the degradation process was determined. It was found that the efficiency of a photocatalytic degradation process was strongly affected by both factors: the doping process of nanowires with Mn2+ atoms and the attachment of ligands to the nanocrystal surface.