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گواهی نمایه سازی مقاله Competitive adsorption of Cu2+ and Zn2+ ions from aqueous solutions by oxidized carbon nanotubes

عنوان مقاله: Competitive adsorption of Cu2+ and Zn2+ ions from aqueous solutions by oxidized carbon nanotubes
شناسه (COI) مقاله: ICHEC07_143
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

Mohammad Reza Golzari - Islamic Azad University, shahr rey
Azita khosravan - International center for science, high technology and environmental science
Hassan Hashemipour - Shahid Bahonar University of Kerman, Chemical engineering Department

خلاصه مقاله:
The individual and competitive adsorption capacities of Cu2+ and Zn2+ by nitric acid treated multiwalled carbon nanotubes (CNTs) were studied. The maximum sorption capacities calculated to single ion adsorption were 100% for Cu2+ and 91.4% for Zn2+ in the initial concentration 5 mg/l. The competitive adsorption studies showed that the affinity order of two metal ions adsorbed by CNTs were 90.4% for Cu2+ and 52.68% for Zn2+in the initial concentration 5 mg/l. Equilibrium time were studied for of single ion adsorption and of two metal ions adsorption by CNT 0.02 g at initial concentration 5 mg/l, this time was 60 min. The effects of solution pH, initial concentration, CNT dosage and temperature on the competitive adsorption of Cu and Zn ions were investigated.

کلمات کلیدی:
carbon nanotube, competitiv adsorption, copper, zinc

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-ICHEC07-ICHEC07_143.html