کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
214584 1425840 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of oleate on fluorite surface as revealed by atomic force microscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Adsorption of oleate on fluorite surface as revealed by atomic force microscopy
چکیده انگلیسی

The adsorption of oleic acid / oleate on fluorite surface could be visualized using tapping mode of atomic force microscopy (AFM). The natural fluorite crystals were equilibrated with 10− 3 to 10− 7 M oleate solutions and their AFM images at each concentration along with height profiles were recorded. Even at low oleate concentration of 1 × 10− 7 M, concomitant monolayer and bilayer structures were observed. It suggests that normal–normal bonding of hydrocarbon chains takes place before the surface is completely covered by the monolayer. Multi-layer adsorption of oleate was observed at oleate concentrations of above 10− 4 M. The tapping mode AFM can be utilized to visualize the topography of surfaces adsorbed with surfactant molecules.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mineral Processing - Volume 90, Issues 1–4, 16 February 2009, Pages 101–104
نویسندگان
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