Cation exchange assisted low temperature chemical synthesis of ZnO@Ag2S core-shell nanoparticles and their photo-catalytic properties
2015 (English)In: Materials Chemistry and Physics, ISSN 0254-0584, E-ISSN 1879-3312, Vol. 163, 485-495 p.Article in journal (Refereed) PublishedText
In this study ZnO@Ag2S core shell nanoparticles (CSNPs) were synthesized by a chemical approach at a relatively low temperature of around 60 degrees C. The shell material was obtained by transferring a ZnS shell synthesized at around bare a ZnO nanoparticles (NPs) to Ag2S. This transfer was achieved at temperature of around 60 degrees C owing to the relatively low value of the solubility product constant of Ag2S compared to that of ZnS. The as-grown ZnO@Ag2S core shell NPs were used as a photocatalyst to degrade Eriochrome black-T dye. Since dye pollutants can be found in mediums with different pH, the degradation experiments were performed at basic and acidic pH values. Photo-decolonization experiments of Eriochrome black-T dye indicated that the ZnO@Ag2S CSNPs act more efficiently as a photcatalyst for both acidic and basic pH values compared to bare ZnO NPs. Then the reusability of the nano-catalyst was tested to confirm that it can be applied as an effective and recyclable photocatalyst. (C) 2015 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA , 2015. Vol. 163, 485-495 p.
Semiconductors; Chemical synthesis; Optical properties
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-123535DOI: 10.1016/j.matchemphys.2015.08.003ISI: 000365361500057OAI: oai:DiVA.org:liu-123535DiVA: diva2:886138
Funding Agencies|Shahid Chamran University; Linkoping University; Linkoping Linne Initiative2015-12-212015-12-212015-12-21