Lutfor, M. R. and Nik Rohani, Nik Mustapa and M. M., Yusoff (2014) Synthesis of Polyamidoxime Chelating Ligand from Polymer-Grafted Corn-Cob Cellulose for Metal Extraction. Journal of Applied Polymer Science. pp. 40833-40840. (Published)
![[img]](http://umpir.ump.edu.my/style/images/fileicons/application_pdf.png) |
PDF
Paper_3.pdf Restricted to Repository staff only Download (889kB) |
Abstract
A conventional free-radical initiating process was used to prepare graft copolymers from acrylonitrile (AN) with corn-cob cellulose with ceric ammonium nitrate (CAN) as an initiator. The optimum grafting was achieved with corn-cob cellulose (anhydroglucose unit, AGU), mineral acid (H2SO4), CAN, and AN at concentrations of 0.133, 0.081, 0.0145, and 1.056 mol/L, respectively. Furthermore, the nitrile functional groups of the grafted copolymers were converted to amidoxime ligands with hydroxylamine under basic conditions of pH 11 with 4 h of stirring at 70�C. The purified acrylic polymer-grafted cellulose and polyamidoxime ligand were characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy analysis. The ligand showed an excellent copper binding capacity (4.14 mmol/g) with a faster rate of adsorption (average exchange rate =7 min), and it showed a good adsorption capacity for other metal ions as well. The metal-ion adsorption capacities of the ligand were pH-dependent in the following order: Cu2>Co2>Mn2>Cr3>Fe3>Zn2>Ni2. The metal-ion removal efficiency was very high; up to 99% was removed from the aqueous media at a low concentration. These new polymeric chelating ligands could be used to remove aforementioned toxic metal ions from industrial wastewater.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | PM. Dr. Md. Lutfor Rahman |
| Date Deposited: | 09 Jan 2015 02:40 |
| Last Modified: | 06 Feb 2018 07:50 |
| URI: | http://umpir.ump.edu.my/id/eprint/8115 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |