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Current Physical Chemistry
ISSN (Print): 1877-9468
ISSN (Online): 1877-9476
VOLUME: 3
ISSUE: 4
DOI: 10.2174/18779468113036660012      Price:  $58









Towards an Understanding on the Role of Precursor in the Synthesis of ZnS Nanostructures

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Author(s): Felipe A. La Porta, Mateus M. Ferrer, Yuri V. B. de Santana, Cristiane W. Raubach, Valéria M. Longo, Júlio R. Sambrano, Elson Longo, Juan Andrés, Máximo S. Li and José A. Varela
Pages 378-385 (8)
Abstract:
Wurtzite-structured ZnS nanostructures have been synthesized by means of a microwave-solvothermal method at 140°C using three precursors (chloride, nitrate and acetate). Different techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR) spectroscopy, ultraviolet–visible (UV–vis) absorption spectroscopy and photoluminescence (PL) measurements have been employed to characterize this material. The structure, surface morphology, chemical composition and optical properties were investigated as function of precursor. In order to complement experimental results, first principles calculations at DFT level were carried out in order to obtain the relative stability of the proposed intermediates along the formation mechanism.
Keywords:
ZnS, Microwave-solvothermal method, precursors, first principle calculations.
Affiliation:
Instituto de Química, UNESP, PO Box 355, 14801-970, Araraquara, SP, Brazil.