Effect of ligands on crystallography, morphology and photo-catalytic ability of ZnS nanostructures
| Autor: | Karamjit Singh, Balwinder Kaur, Ashok Kumar Malik |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Photoluminescence
Materials science Process Chemistry and Technology General Chemical Engineering chemistry.chemical_element 02 engineering and technology Zinc 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Crystallography chemistry law Transmission electron microscopy Potassium ethyl xanthate Nanorod Xanthate Electron microscope 0210 nano-technology Luminescence |
| Zdroj: | Dyes and Pigments. 142:153-160 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2017.03.013 |
| Popis: | ZnS nanostructures have been synthesized using zinc complexes: Zn(ethyl xanthate) 2 ] & [Zn(morpholine4-dithiocarbamate) 2 ] from ligands potassium ethyl xanthate (KEX) and morpholine4-dithiocarbamate (MDTC) by solvothermal route of synthesis. Crystallographic and morphological analyses of synthesized ZnS nanostructures have been done by X-ray diffraction (XRD) and electron microscopy [Transmission Electron Microscope (TEM)], respectively. Diffraction and electron microscope studies reveal the formation of hexagonal structured ZnS nanocrystals of various morphologies (nanosheets & nanorods). UV–vis. absorption studies have been carried for the detailed optical analyses. Photoluminescence (PL) study was carried out to check luminescence of synthesized ZnS nanostructures in blue region of electromagnetic spectrum. It has been reported that the morphology of synthesized nanostructures strongly depends upon the precursor complexes prepared from two different classes of ligands; potassium ethyl xanthate and morpholine4-dithiocarbamate. Photo-catalytic activity potential of the synthesized ZnS nanostructures has been tested in UV light using methylene blue (MB) dye as a test contaminant in aqueous media. About 88.49% and 87.96% of MB dye was photo-degraded by ZnS nanostructures synthesized from Zn(EX) 2 [ where EX stands for ethyl xanthate] and Zn(MDTC) 2 , respectively. |
| Databáze: | OpenAIRE |
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