Synthesis and Study of Optical and Photocatalytic Properties of Mn and Sm Doped ZnS Grown by Sol-Gel

• Published in: Journal of superconductivity and novel magnetism Vol. 26; no. 6; pp. 2337 - 2340
• Main Authors: Gómez-Barojas, E., Sánchez-Mora, E., Castillo-Abriz, C., Flores-Rodríguez, E., Silva-González, R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Boston Springer US 01.06.2013; Springer
• Subjects: Characterization and Evaluation of Materials; Chemistry; Condensed Matter Physics; Cross-disciplinary physics: materials science; rheology; Decomposition reactions; Electrochemistry; Electrodes: preparations and properties; Exact sciences and technology; General and physical chemistry; Glass; Glasses (including metallic glasses); Immersion coating; Light irradiation; Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids); Magnetic Materials; Magnetism; Materials science; Materials synthesis; materials processing; Methods of deposition of films and coatings; film growth and epitaxy; Optical properties; Original Paper; Photocatalysis; Physics; Physics and Astronomy; Sol gel process; Specific materials; Strongly Correlated Systems; Superconductivity; Zinc sulfides; Thin films; Zinc sulphide; Photocatalytic properties; Sol-gel; Fourier transformation; Doping; Glass; Infrared spectra; Coatings; Zinc sulfide; Samarium additions; Visible radiation; Dip coating; Fourier-transformed infrared spectrometry; Catalyst activity; Sol-gel process
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-012-1432-5

Optical and photocatalytic properties of ZnS, ZnS:Mn 2+ (20 and 30 wt%) and ZnS:Sm 3+ (20 and 30 wt%) samples formed by three coatings, were studied. The layers were deposited on glass substrate by the sol-gel dip coating process. The catalytic activity of the samples was determined by means of the photodecomposition of methylene blue under Ultra Violet and visible light irradiations. The Fourier Transform Infrared (FTIR) spectrum of ZnS shows the presence of OH, N–H, N–C and S–H groups. The last two groups suggest the formation of a thiocyanuric group (NCS − ) on the surface of the sample which enables the photocatalytic activity of undoped ZnS and doped ZnS under visible light irradiation.