Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst
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 rad...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/19/5840 |
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| author | Adam Żaba Svitlana Sovinska Tetiana Kirish Adam Węgrzynowicz Katarzyna Matras-Postołek |
| author_facet | Adam Żaba Svitlana Sovinska Tetiana Kirish Adam Węgrzynowicz Katarzyna Matras-Postołek |
| author_sort | Adam Żaba |
| collection | DOAJ |
| description | 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 Mn<sup>2+</sup> atoms and the attachment of ligands to the nanocrystal surface. |
| first_indexed | 2024-03-10T06:55:56Z |
| format | Article |
| id | doaj.art-58b48181289e44d89069fea9d1976156 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:55:56Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-58b48181289e44d89069fea9d19761562023-11-22T16:27:57ZengMDPI AGMaterials1996-19442021-10-011419584010.3390/ma14195840Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire PhotocatalystAdam Żaba0Svitlana Sovinska1Tetiana Kirish2Adam Węgrzynowicz3Katarzyna Matras-Postołek4Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandZinc 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 Mn<sup>2+</sup> atoms and the attachment of ligands to the nanocrystal surface.https://www.mdpi.com/1996-1944/14/19/5840organic dyesphotocatalysisZnSligandsdopingnanowires |
| spellingShingle | Adam Żaba Svitlana Sovinska Tetiana Kirish Adam Węgrzynowicz Katarzyna Matras-Postołek Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst Materials organic dyes photocatalysis ZnS ligands doping nanowires |
| title | Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst |
| title_full | Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst |
| title_fullStr | Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst |
| title_full_unstemmed | Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst |
| title_short | Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst |
| title_sort | photodegradation process of organic dyes in the presence of a manganese doped zinc sulfide nanowire photocatalyst |
| topic | organic dyes photocatalysis ZnS ligands doping nanowires |
| url | https://www.mdpi.com/1996-1944/14/19/5840 |
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