کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
580079 1453148 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The investigation of copper-based impregnated activated carbons prepared from water-soluble materials for broad spectrum respirator applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
The investigation of copper-based impregnated activated carbons prepared from water-soluble materials for broad spectrum respirator applications
چکیده انگلیسی
The preparation of impregnated activated carbons (IACs) from aqueous, copper-containing solutions for broad spectrum gas filtration applications is studied here. Several samples were studied to determine the effect that impregnant loading, impregnant distribution and impregnant recipe had on the overall performance. Dynamic flow testing was used to determine the gas filtration capacity of the IAC samples versus a variety of challenge gases. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) were used to characterize the impregnant distribution on the carbon as a function of impregnant loading. Oven tests were performed to determine the thermal stability of the IAC samples exposed to elevated temperatures. The role impregnant distribution plays in gas filtration capacity and the overall performance of the IAC samples is discussed. The IAC samples prepared in this work were found to have gas filtration capacities as good as or better than broad spectrum respirator carbon samples prepared from the patent literature. IACs impregnated with an aqueous 2.4 M Cu(NO3)2/0.04 M H3PO4·12MoO3/4 M HNO3 solution that were heated to 200 °C under argon were found to have the best overall performance of the samples studied in this work.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 180, Issues 1–3, 15 August 2010, Pages 419-428
نویسندگان
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