کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
625574 1455430 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of methylene blue from aqueous solution using nanoporous SBA-3
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Removal of methylene blue from aqueous solution using nanoporous SBA-3
چکیده انگلیسی

The adsorption behavior of methylene blue from aqueous systems onto mesoporous SBA-3 has been studied. Batch experiments were carried out to measure the adsorption as a function of contact time, initial concentration (50–150 mg L− 1), pH (4–12), and temperature (303, 313 and 323 K). The equilibrium of the process was achieved within 1 h. The sorption of methylene blue on the mesoporous silica SBA-3 slightly increases with increasing pH, and temperature, indicating an endothermic process. Adsorption isotherms were fitted with the Langmuir, Freundlich and Temkin models. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The adsorption kinetics of methylene blue on mesoporous SBA-3 matched well with pseudo-second order kinetic model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 261, Issues 1–2, 15 October 2010, Pages 61–66
نویسندگان
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