Adsorption of Rare Earth Metals from Water using a Kenaf Cellulose-based Poly(hydroxamic acid) Ligand
A kenaf cellulose-based poly(hydroxamic acid) ligandwas synthesized frompoly(methylacrylate) grafted cellulose and applied towards the adsorption of rare earthmetals fromaqueousmedia. The startingmaterials and final product were examined by FT-IR, FE-SEM, and ICP-MS. Remarkable maximum adsorption...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/19470/ http://umpir.ump.edu.my/id/eprint/19470/ http://umpir.ump.edu.my/id/eprint/19470/ http://umpir.ump.edu.my/id/eprint/19470/7/fist-2017-shaheen-Adsorption%20of%20rare%20earth%20metals%20from%20water1.pdf |
| Summary: | A kenaf cellulose-based poly(hydroxamic acid) ligandwas synthesized frompoly(methylacrylate) grafted cellulose
and applied towards the adsorption of rare earthmetals fromaqueousmedia. The startingmaterials and final
product were examined by FT-IR, FE-SEM, and ICP-MS. Remarkable maximum adsorption results were obtained
for the earthmetals La3+, Ce3+, Pr3+, Gd3+, Nd3+, Eu3+, and Sm3+, with values of 260, 245, 235, 220, 210, 195,
and 192 mg g−1, respectively. The adsorption capacities of the ligand for adsorption of rare earth metals were
well fitted with the pseudo-second-order rate equation. Further, the adsorption properties of the rare earth
ionswere nicelymatchedwith the Langmuir isothermmodel, (R2 N 0.99), thus suggesting that the adsorbent surface
of the ligand ismonolayer and homogenous in nature. The reusability of the created ligandwas evaluated by
carrying out sequential sorption/desorption experiments, indicating that the developed adsorbent can be reused
for at least 10 cycles without incurring any significant losses to its primary removal capabilities. |
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