Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment
Poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre (peh-g-opefb) was successfully prepared by heating poly(methyl acrylate)-grafted opefb (pma-g-opefb) at 60 °C for 4 h with a solution of hydrazine hydrate (15% v/v) in ethanol. The Fourier transform infrared spectrum of the product shows...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
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Multidisciplinary Digital Publishing Institute
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30160/1/Preparation%20and%20characterization%20of%20poly2.pdf |
| _version_ | 1825947652391436288 |
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| author | Johari, Ili Syazana Yusof, Nor Azah Haron, Md. Jelas Mohd Nor, Siti Mariam |
| author_facet | Johari, Ili Syazana Yusof, Nor Azah Haron, Md. Jelas Mohd Nor, Siti Mariam |
| author_sort | Johari, Ili Syazana |
| collection | UPM |
| description | Poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre (peh-g-opefb) was successfully prepared by heating poly(methyl acrylate)-grafted opefb (pma-g-opefb) at 60 °C for 4 h with a solution of hydrazine hydrate (15% v/v) in ethanol. The Fourier transform infrared spectrum of the product shows a secondary amine peak at 3267 cm-1, with amide carbonyl peaks at 1729 cm-1 and 1643 cm-1. The chelating ability of peh-g-opefb was tested with copper ion in aqueous solution. A batch adsorption study revealed that maximum adsorption of copper ion was achieved at pH 5. An isotherm study showed the adsorption follows a Langmuir model, with a maximum adsorption capacity of 43.48 mg g-1 at 25 °C. A kinetic study showed that the adsorption of copper ion rapidly reaches equilibrium and follows a pseudo-second-order kinetic model, with a constant rate of 7.02 × 10-1 g mg-1 min-1 at 25 °C. The Gibbs free energy, ΔG0, value is negative, indicating a spontaneous sorption process. Entropy, ΔS0, gives a positive value, indicating that the system is becoming increasingly disordered after the adsorption of copper ion. A positive enthalpy value, ΔH0, shows that the endothermic process takes place during the adsorption and is more favourable at high temperatures. |
| first_indexed | 2024-03-06T08:16:40Z |
| format | Article |
| id | upm.eprints-30160 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T08:16:40Z |
| publishDate | 2013 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | dspace |
| spelling | upm.eprints-301602015-10-05T07:16:07Z http://psasir.upm.edu.my/id/eprint/30160/ Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment Johari, Ili Syazana Yusof, Nor Azah Haron, Md. Jelas Mohd Nor, Siti Mariam Poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre (peh-g-opefb) was successfully prepared by heating poly(methyl acrylate)-grafted opefb (pma-g-opefb) at 60 °C for 4 h with a solution of hydrazine hydrate (15% v/v) in ethanol. The Fourier transform infrared spectrum of the product shows a secondary amine peak at 3267 cm-1, with amide carbonyl peaks at 1729 cm-1 and 1643 cm-1. The chelating ability of peh-g-opefb was tested with copper ion in aqueous solution. A batch adsorption study revealed that maximum adsorption of copper ion was achieved at pH 5. An isotherm study showed the adsorption follows a Langmuir model, with a maximum adsorption capacity of 43.48 mg g-1 at 25 °C. A kinetic study showed that the adsorption of copper ion rapidly reaches equilibrium and follows a pseudo-second-order kinetic model, with a constant rate of 7.02 × 10-1 g mg-1 min-1 at 25 °C. The Gibbs free energy, ΔG0, value is negative, indicating a spontaneous sorption process. Entropy, ΔS0, gives a positive value, indicating that the system is becoming increasingly disordered after the adsorption of copper ion. A positive enthalpy value, ΔH0, shows that the endothermic process takes place during the adsorption and is more favourable at high temperatures. Multidisciplinary Digital Publishing Institute 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30160/1/Preparation%20and%20characterization%20of%20poly2.pdf Johari, Ili Syazana and Yusof, Nor Azah and Haron, Md. Jelas and Mohd Nor, Siti Mariam (2013) Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment. Molecules, 18 (7). pp. 8461-8472. ISSN 1431-5157; ESSN: 1420-3049 http://www.mdpi.com/1420-3049/18/7 10.3390/molecules18078461 English |
| spellingShingle | Johari, Ili Syazana Yusof, Nor Azah Haron, Md. Jelas Mohd Nor, Siti Mariam Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title | Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title_full | Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title_fullStr | Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title_full_unstemmed | Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title_short | Preparation and characterization of poly(ethyl hydrazide)-grafted oil palm empty fruit bunch fibre for the removal of Cu(II) ions from an aqueous environment |
| title_sort | preparation and characterization of poly ethyl hydrazide grafted oil palm empty fruit bunch fibre for the removal of cu ii ions from an aqueous environment |
| url | http://psasir.upm.edu.my/id/eprint/30160/1/Preparation%20and%20characterization%20of%20poly2.pdf |
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