چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| Here, edetic acid (EDTA) structure was chemically modified by aspartic acid and lysine (two α-amino acids) over covalent functionalization. The obtained modified EDTA (m-EDTA) was used to functionalize graphene oxide (GO) surface for effective removal of dyes from waste waters. The methylene blue dye was adsorbed on the hybrid sorbent through π–π interactions with GO conjugated surface and also electrostatic interactions with multivalent chelating m-EDTA sites. The synthesized hybrid sorbent has been characterized with X-ray powder diffraction, scanning electron microscope, Fourier transform infrared spectroscopy, and ultraviolet–visible spectroscopy. 0.03 g of synthesized hybrid sorbent has been used for treatment of 30 mL of pollutant (1 g/L). The results indicate high removal efficiency was obtained in first 20 min that verify the modification of the GO has a positive effect on removal efficiency. |
| نویسنده | نفر چندم مقاله |
|---|---|
| ابوالفضل اکبرزاده | سوم |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| khadivi2019.pdf | 1398/05/16 | 2228852 | دانلود |
