کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
144212 438924 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation of ZnS nano- and microparticles from thiourea solutions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Formation of ZnS nano- and microparticles from thiourea solutions
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advanced Powder Technology - Volume 24, Issue 6, November 2013, Pages 1017–1022
نویسندگان
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