کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
144212 | 438924 | 2013 | 6 صفحه PDF | دانلود رایگان |

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.
Figure optionsDownload 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.
Journal: Advanced Powder Technology - Volume 24, Issue 6, November 2013, Pages 1017–1022