title: Synthesis, characterization and optical studies of highly luminescent ZnS nanoparticles associated with hypromellose matrix as a green and novel stabilizer.
abstract: ZnS nanoparticles stabilized by a carbohydrate-based matrix, hypromellose (hydroxypropyl methylcellulose) were prepared via a wet chemical method. The nanocomposite was characterized by X-ray diffraction, transmission electon microscopy and Fourier transform infrared spectroscopy. X-Ray diffraction patterns revealed a zinc blende structure. Thermogravimetric analysis suggested that polymer attached to the surface decomposes at 700 °C. Absorption measurements were carried out and calculation of the diameter polydispersity index (DPI) suggests the formation of monodisperse nanoparticles. The optical properties of the as-prepared samples were studied by UV/vis spectroscopy and steady-state photoluminescence (PL) spectroscopy. The PL studies indicate the applicability of these nanoparticles as biocompatible sensors or luminescence markers in future.
authors.affiliation: Department of Chemistry, Government Lahiri College, Chirimiri, 497449, India.
authors.forename: Ashish
authors.initials: A
authors.lastname: Tiwari
authors.forename: S A
authors.initials: SA
authors.lastname: Khan
authors.forename: R S
authors.initials: RS
authors.lastname: Kher
authors.forename: S J
authors.initials: SJ
authors.lastname: Dhoble
mesh_terms: D065347:Hypromellose Derivatives / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D053758:Nanoparticles / Q000737:chemistry*; D055620:Optical Phenomena; D013440:Sulfides / Q000138:chemical synthesis* / Q000737:chemistry*; D017967:Zinc Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D013440:Sulfides; D017967:Zinc Compounds; D065347:Hypromellose Derivatives; C031238:zinc sulfide
keywords: ZnS-hypomellose nanoparticles; diameter polydispersity index (DPI); optical absorption; photoluminescence (PL); thermogavimetric analysis