jafar azimvand
Department of Chemistry, University of Payame Noor, P.O.Box 16596-39884, Tehran, Iran
[ 1 ] - Preparation and Characterization of Nano-lignin Biomaterial to Remove Basic Red 2 dye from aqueous solutions
The present study prepares alkali lignin (AL) via acidification of black liquor, obtained from a pulp and paper factory. The average molecular weight of AL (equal to 2,530 g/mol) has been determined with gel permeation chromatography. AL has been modified by ethylene glycol, while lignin nanoparticles (LN) has been prepared through acid precipitation technology, their size being assessed by mea...
[ 2 ] - Preparation and Characterization of Nano-lignin Biomaterial to Remove Basic Red 2 dye from aqueous solutions
The present study prepares alkali lignin (AL) via acidification of black liquor, obtained from a pulp and paper factory. The average molecular weight of AL (equal to 2,530 g/mol) has been determined with gel permeation chromatography. AL has been modified by ethylene glycol, while lignin nanoparticles (LN) has been prepared through acid precipitation technology, their size being assessed by mea...
[ 3 ] - حذف ماده رنگزای کاتیونی بازیک بنفش16 (BV16) از محلول‌های آبی با استفاده از دندریمر پلی‌آمیدوآمین نسل 2 (PAMAM-G2)
در این مطالعه دندریمر پلی‌آمیدوآمین نسل 2 (PAMAM-G2) به عنوان جاذب برای رنگبری پساب حاوی ماده رنگزای بازیک بنفش 16 ((BV16 استفاده شد. به منظور مطالعه ویژگی‌های رنگبری جاذب، عوامل موثر بر فرآیند رنگبری همچون pH، مقدار جاذب، غلظت ماده رنگزا و زمان تماس بررسی گردید. با افزایش pH ، زمان تماس و غلظت اولیه ماده رنگزا، ظرفیت جذب qe نیز افزایش یافت. در حالی که مقدار جاذب، با ظرفیت جذب رابطه معکوس داشت ...
نویسندگان همکار