Article ID Journal Published Year Pages File Type
144212 Advanced Powder Technology 2013 6 Pages PDF
Abstract

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 1 М 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 50–100 nm (particle size in agglomerates of 3–5 nm) and hexagonal columns in length up to 2 μm and diameter of 80–100 nm. At the microwave heating conditions (90 °С), irrespective of thiourea concentration formation of spherical ZnS particles with the size 0.6–1.2 μm is observed.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights• 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.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
Authors
, , , , , , , ,