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JCR 2016
جستجوی مقالات
پنجشنبه 10 مهر 1404
Iranian Journal of Materials Science and Engineering
، جلد ۱۰، شماره ۲، صفحات ۳۷-۴۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژههای فارسی مقاله
عنوان انگلیسی
CATION UPTAKE PROPERTIES OF CALCIUM ALUMINOSILICATE
چکیده انگلیسی مقاله
In this study, the effect of different parameters such as time and temperature of calcination and milling on the formation of calcium aluminosilicates was investigated. Raw materials used in this study were calcium carbonate and kaolin in high purity. Powder X-ray diffraction patterns were obtained from all samples after heat treatment at various temperatures and times. To study the microstructure scanning electron microscope was used. Milling the samples contributed to the amorphous structure due to inducing defects in the structure. Moreover, increasing the milling time reduced crystallization temperature of anorthite. Uptake experiments were performed using solutions containing different concentrations of nickel. Samples were exposed to the solution for 24 h with stirring then the samples were filtered and the concentrations of the cations in the separated solutions were analyzed. FTIR analysis was conducted on the adsorbents before and after nickel uptake. Nevertheless, they hardly helped understand sorption mechanisms. Therefore, adsorption isotherms were studied instead. Three adsorption isotherms of Langmuir, Freundlich and DKR were used to model sorption data. Results suggested monolayer sorption occurs on the surface of the adsorbent and sorption energy calculated by DKR model was 22.36 kJ/mol which can be described as a strong chemical adsorption mechanism
کلیدواژههای انگلیسی مقاله
نویسندگان مقاله
m s ساقیان | m s saghian
r نقی زاده | r naghizadeh
حسین سرپولکی | h sarpoolaky
نشانی اینترنتی
http://ijmse.iust.ac.ir/browse.php?a_code=A-10-127-15&slc_lang=en&sid=en
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زبان مقاله منتشر شده
en
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نوع مقاله منتشر شده
Research paper
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