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Isotherm adsorption studies of Ni(II) ion removal from aqueous solutions by modified carboxymethyl cellulose hydrogel
| Content Provider | Scilit |
|---|---|
| Author | Anah, L. Astrini, N. |
| Copyright Year | 2018 |
| Description | Journal: Iop Conference Series: Earth and Environmental Science This paper reports the removal of nickel ions from aqueous solutions using carboxymethyl cellulose-graft-poly(acrylic acid) CMC-g-PAA hydrogel as an adsorbent. The hydrogel was prepared through graft copolymerization of acrylic acid monomer onto a carboxymethyl cellulose backbone in the presence of N,N'-methylenebisacrylamide as a crosslinking-agent using benzoyl peroxide initiator system. Isotherm for the adsorption of nickel on CMC-g-PAA hydrogel was developed and the equilibrium data fitted to the Langmuir and Freundlich isotherm models. The result showed that at pH of 5 and shaker speed of 100 rpm, Freundlich model was better fitted than Langmuir model, of which $R^{2}$ = 0.999 and $R^{2}$ = 0.935, respectively. The constant of Langmuir model was $K_{L}$ value = 0.003 and $q_{max}$ = 1000 mg/g, whereas the constant of Freundlich model n = 1.2 and $K_{F}$ = 4.614. The CMC-g-PAA hydrogel before and after Ni(II) adsorption were characterized using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR). |
| Related Links | http://iopscience.iop.org/article/10.1088/1755-1315/160/1/012017/pdf |
| ISSN | 17551307 |
| e-ISSN | 17551315 |
| DOI | 10.1088/1755-1315/160/1/012017 |
| Journal | Iop Conference Series: Earth and Environmental Science |
| Issue Number | 1 |
| Volume Number | 160 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-06-18 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Earth and Environmental Science Water Science and Technology Carboxymethyl Cellulose Cmc G Paa Hydrogel |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences Physics and Astronomy Environmental Science |
