Formation of ZnS nano- and microparticles from thiourea solutions

[Display omitted] • ZnS particles can be synthesized using precipitation by thiourea. • The thiourea concentration plays an important role for the formation of structures. • Use microwave radiation results in particle enlarging. Effects of temperature, concentration of thiourea and reaction conditio...

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Bibliographic Details
Published in:Advanced powder technology : the international journal of the Society of Powder Technology, Japan Japan, 2013-11, Vol.24 (6), p.1017-1022
Main Authors: Sofronov, D.S., Sofronova, E.M., Baumer, V.N., Kudin, K.A., Mateichenko, P.V., Vovk, O.M., Bryleva, E.Yu, Belikov, K.N.
Format: Article
Language:English
Subjects:
Nanosize
Particles
Powder technology
Semiconductors
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Summary:[Display omitted] • ZnS particles can be synthesized using precipitation by thiourea. • The thiourea concentration plays an important role for the formation of structures. • Use microwave radiation results in particle enlarging. Effects of temperature, concentration of thiourea and reaction conditions (thermal heating and microwave irradiation) on morphological properties of ZnS particles obtained by sedimentation from 0.01, 0.1 and 1М zinc nitrate solutions are studied. It is found that ZnS particles of two shapes are formed from thiourea solutions at a thermal heating (70–90°С): agglomerated particles of the spherical shape with the dimensions of agglomerates 50–100nm (particle size in agglomerates of 3–5nm) and hexagonal columns in length up to 2μm and diameter of 80–100nm. At the microwave heating conditions (90°С), irrespective of thiourea concentration formation of spherical ZnS particles with the size 0.6–1.2μm is observed.
ISSN:0921-8831
1568-5527
DOI:10.1016/j.apt.2013.02.006