Issue 18, 2013
From the journal:

Physical Chemistry Chemical Physics

Temperature and time dependence on ZnS microstructure and phases obtained through hydrothermal decomposition of diethyldithiocarbamate complexes

Guilherme Oliveira Siqueira,a   Tulio Matencio,a   Herculano Vieira da Silva,a   Yara Gonçalves de Souza,a   José Domingos Ardisson,b   Geraldo Magela de Limaa  and  Arilza de Oliveira Porto*a  

* Corresponding authors

a Departamento de Química – Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
E-mail: arilzaporto@yahoo.com.br
Fax: +55 31 34095700
Tel: +55 31 34095739

b Centro de Desenvolvimento da Tecnologia Nuclear, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Brazil

Abstract

Zinc sulphide was obtained through hydrothermal decomposition of [Zn(S2CNEt2)] under different experimental conditions such as temperatures and reaction times. Hydrothermal reactions were carried out in a stainless steel autoclave at 160, 180 and 200 °C for 3, 6 and 24 hours. The obtained products were characterized using X-ray diffraction, scanning and high resolution transmission electron microscopies. Particle size and microstrain were determined by Rietveld refinement of experimental X-ray diffraction patterns. The obtained crystal size values were in the range of 6.1 to 30 nm and as the temperature and reaction times increase the particle size also increases. Band gap values are in the range of 3.34 to 3.60 eV and are highly dependent on the crystal microstrain. The catalyst activities were studied through the degradation of methylene blue dye solutions under ultraviolet radiation.

Graphical abstract: Temperature and time dependence on ZnS microstructure and phases obtained through hydrothermal decomposition of diethyldithiocarbamate complexes

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Article information

DOI
https://doi.org/10.1039/C3CP50549A
Article type
Paper
Submitted
05 Feb 2013
Accepted
01 Mar 2013
First published
04 Mar 2013

Phys. Chem. Chem. Phys., 2013,15, 6796-6803

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Temperature and time dependence on ZnS microstructure and phases obtained through hydrothermal decomposition of diethyldithiocarbamate complexes

G. O. Siqueira, T. Matencio, H. V. da Silva, Y. G. de Souza, J. D. Ardisson, G. M. de Lima and A. de Oliveira Porto, Phys. Chem. Chem. Phys., 2013, 15, 6796 DOI: 10.1039/C3CP50549A

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