کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
576794 1453088 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-based systems for oil spills control and cleanup
ترجمه فارسی عنوان
سیستم های مبتنی بر نانو برای کنترل و پاک سازی نشت نفت
کلمات کلیدی
نفت خالص را پاک می کند، غشای زیر غده، گرافیت خرد شده، هیدروفلوئید
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
This paper reports the development of superhydrophobic nanocomposite systems which are also oleophilic. As hydrophobicity is based on low energy surface and surface roughness, the electrospinning technique was selected as the manufacturing technique. N,N′ dimethylformamide (DMF) was employed as the polystyrene (PS) solvent. The “Tea-bag” (T-B) nanocomposite system is based on exfoliated graphite surrounded by PS superhydrophobic membranes. The T-B systems were tested regarding its adsorption and absorption rates. To test these properties, it was employed three different water/oil emulsions, i.e., new and used motor oil, which have physical properties (viscosity and specific gravity) similar to heavy crude oil extracted in Brazil, and vacuum pump oil (which does not form oil/water emulsion). It was observed that oil adsorption rate is dependent on oil surface tension, while the absorption rate is mainly dependent on membrane/exfoliated graphite surface area. Experimental data show that oil absorption rates ranged between 2.5 g/g and 40 g/g, while the adsorption rate oscillated from 0.32 g/g/min to 0.80 g/g/min. Furthermore, T-B systems were tested as containment barriers and sorbent materials with good results including its recyclability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 272, 15 May 2014, Pages 20-27
نویسندگان
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