Investigation of Mn doping concentration on the structural, optical, antimicrobial and dye degradation properties of ZnS thin films. (2021)

• Record Type: Journal Article
• Authors: Saroja, M.; Venkatachalam, M.; Gowthaman, P.; Sathishkumar, M.
• Is Part Of: Materials today. Volume 43:Part 6(2021)
• Page Start: 3325
• Page End: 3335
• Publication Date: 2021
• Subjects: Mn doped ZnS -- Sol gel technique antimicrobial activity -- Microorganisms photo catalytic degradation; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.12.009
• Languages: English
• ISSNs: 2214-7853

Abstract

Highlights: Cubic structured nanocrystalline zinc sulfide thin films have been successfully prepared by sol–gel dip coding method. Structural, Optical and Antimicrobial activity of undoped and different concentration of Mn doped zinc sulfide thin films has been investigated. The Mn atoms is favorable for the growth of ZnS nanocrystal and peaks become stronger depends on the doping concentration. Mn doped zinc sulfide thin films exhibit excellent inhibition zone against all tested microorganism and photo catalytic degradation properties to compare other zinc sulfide thin films. Abstract: The undoped and manganese (Mn) doped zinc sulphide (ZnS) thin film has been deposited on the glass substrate by sol gel dip coating method. The influence of different Mn concentration (Zn1− x Mnx S) (x = 0, 0.02, 0.04, 0.06, 0.08, and 0.1 wt%) on the structural, morphological, element composition, functional group and optical properties were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray, Fourier transmission infrared spectroscopy, UV–Visible spectroscopy and photoluminescence. In addition antimicrobial activity of as-deposited ZnS thin film has been evaluated by in vitro disk diffusion method against different microorganisms. Besides the photo catalytic degradation properties of methylene blue dye (MBD) and methyl orange dye (MOD) under UV light irradiation has been evaluated. From this investigation Mn doped ZnS thin film revelled excellent antimicrobial activity and photo catalytic degradation properties compare undoped ZnS thin film.