Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction
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...
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The Korean Fiber Society
2016
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my.ums.eprints.274412021-06-26T01:05:55Z https://eprints.ums.edu.my/id/eprint/27441/ Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction Md Lutfor Rahman Bablu Hira Mandal Shaheen M. Sarkar Nor Asiken Abdul Wahab Mashitah Mohd Yusoff Sazmal E. Arshad Baba Musta QD Chemistry QH301-705.5 Biology (General) QK Botany 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 metal complexation. 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. The Korean Fiber Society 2016 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/27441/1/Synthesis%20of%20poly%20%28hydroxamic%20acid%29%20ligand%20from%20polymer%20grafted%20khaya%20cellulose%20for%20transition%20metals%20extraction%20ABSTRACT.pdf Md Lutfor Rahman and Bablu Hira Mandal and Shaheen M. Sarkar and Nor Asiken Abdul Wahab and Mashitah Mohd Yusoff and Sazmal E. Arshad and Baba Musta (2016) Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction. Fibers and Polymers, 17 (1). pp. 521-532. ISSN 1875-0052 https://link.springer.com/article/10.1007%2Fs12221-016-6001-2 |
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QD Chemistry QH301-705.5 Biology (General) QK Botany Md Lutfor Rahman Bablu Hira Mandal Shaheen M. Sarkar Nor Asiken Abdul Wahab Mashitah Mohd Yusoff Sazmal E. Arshad Baba Musta Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
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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 metal complexation. 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. |
format |
Article |
author |
Md Lutfor Rahman Bablu Hira Mandal Shaheen M. Sarkar Nor Asiken Abdul Wahab Mashitah Mohd Yusoff Sazmal E. Arshad Baba Musta |
author_facet |
Md Lutfor Rahman Bablu Hira Mandal Shaheen M. Sarkar Nor Asiken Abdul Wahab Mashitah Mohd Yusoff Sazmal E. Arshad Baba Musta |
author_sort |
Md Lutfor Rahman |
title |
Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
title_short |
Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
title_full |
Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
title_fullStr |
Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
title_full_unstemmed |
Synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
title_sort |
synthesis of poly (hydroxamic acid) ligand from polymer grafted khaya cellulose for transition metals extraction |
publisher |
The Korean Fiber Society |
publishDate |
2016 |
url |
https://eprints.ums.edu.my/id/eprint/27441/1/Synthesis%20of%20poly%20%28hydroxamic%20acid%29%20ligand%20from%20polymer%20grafted%20khaya%20cellulose%20for%20transition%20metals%20extraction%20ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/27441/ https://link.springer.com/article/10.1007%2Fs12221-016-6001-2 |
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1760230622590140416 |