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Synthesis of poly(hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rahman, Lutfor Mandal, Bablu Hira Sarkar, Shaheen M. Wahab, Nor Asiken Abdul Yusoff, Mashitah Mohd Arshad, Sazmal Effendi Musta, Baba |
| Copyright Year | 2016 |
| Abstract | A cellulose-graft-poly(methyl acrylate) was synthesized by free radical initiating process and the ester functional groups were converted into the hydroxamic acid ligand. The intermediate and final products are characterized by FT-IR, FE-SEM, HR-TEM and XPS technique. The pH of the solution acts as a key factor in achieving optical color signals of metalcomplexation. The reflectance spectra of the [Cu-ligand]n+ complex was found to be a highest absorbance at 99.8 % at pH 6 and it was increased upon increasing of Cu2+ ion concentrations and a broad peak at 700 nm was observed which indicated the charge transfer (π-π transition) metals-Cu complex. The adsorption capacity of copper was found to be superior (336 mg g−1) rather than other transition metals such as Fe3+, Co3+, Cr3+, Ni2+, Mn2+ and Zn2+ were 310, 295, 288, 250, 248 and 225 mg g-1, respectively at pH 6. The experimental data of all metal ions fitted significantly with the pseudo-second-order rate equation. The transition metal ions sorption onto ligand were well fitted with the Langmuir isotherm model (R2>0.99), which suggested that the cellulose-based adsorbent known as poly(hydroxamic acid) ligand surface is homogenous and monolayer. The reusability of the poly(hydroxamic acid) ligand was checked by the sorption/desorption process up to ten cycles without any significant loss in its original sensing and removal performances. |
| Starting Page | 521 |
| Ending Page | 532 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s12221-016-6001-2 |
| Alternate Webpage(s) | http://umpir.ump.edu.my/id/eprint/16780/1/fist-2016-lutfor-Synthesis%20of%20Poly(hydroxamic%20acid1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s12221-016-6001-2 |
| Volume Number | 17 |
| Journal | Fibers and Polymers |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
