Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents
The coconut pith biosorbents were prepared by modifying coconut pith (CP) with sodium hydroxide and bis(triethoxysilylpropyl) tetrasulfide to enhance its sorption capacity and selectivity toward silver ion [Ag(I)]. It was found that the Ag(I) sorption capacity of pure CP, CP modified with sodium hyd...
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| Format: | Article |
| Language: | English |
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Taylor and Francis Ltd.
2015
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| Online Access: | http://eprints.utm.my/55974/1/NorasikinSaman2015_SilverIonAdsorptionUsingAlkaliandOrganosilane.pdf |
| _version_ | 1796860296933933056 |
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| author | Saman, Norasikin Johari, Khairiraihanna Tien, Songshiow Mat, Hanapi |
| author_facet | Saman, Norasikin Johari, Khairiraihanna Tien, Songshiow Mat, Hanapi |
| author_sort | Saman, Norasikin |
| collection | ePrints |
| description | The coconut pith biosorbents were prepared by modifying coconut pith (CP) with sodium hydroxide and bis(triethoxysilylpropyl) tetrasulfide to enhance its sorption capacity and selectivity toward silver ion [Ag(I)]. It was found that the Ag(I) sorption capacity of pure CP, CP modified with sodium hydroxide, and CP modified with bis(triethoxysilylpropyl) tetrasulfide was 0.50, 0.48, and 0.62 mmol/g, respectively. The Ag(I) equilibrium data were best fitted to the Langmuir isotherm model, whereas the kinetic data obeyed the pseudo-second-order kinetic model with the anticipation of the film diffusion as the rate-limiting step. The sorption process was generally governed by a combination of physical and chemical sorption mechanisms. The Ag(I) sorption capacity and selectivity of coconut pith biosorbents were low as compared with other metal ions. |
| first_indexed | 2024-03-05T19:39:16Z |
| format | Article |
| id | utm.eprints-55974 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:39:16Z |
| publishDate | 2015 |
| publisher | Taylor and Francis Ltd. |
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| spelling | utm.eprints-559742016-11-15T06:38:04Z http://eprints.utm.my/55974/ Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents Saman, Norasikin Johari, Khairiraihanna Tien, Songshiow Mat, Hanapi TP Chemical technology The coconut pith biosorbents were prepared by modifying coconut pith (CP) with sodium hydroxide and bis(triethoxysilylpropyl) tetrasulfide to enhance its sorption capacity and selectivity toward silver ion [Ag(I)]. It was found that the Ag(I) sorption capacity of pure CP, CP modified with sodium hydroxide, and CP modified with bis(triethoxysilylpropyl) tetrasulfide was 0.50, 0.48, and 0.62 mmol/g, respectively. The Ag(I) equilibrium data were best fitted to the Langmuir isotherm model, whereas the kinetic data obeyed the pseudo-second-order kinetic model with the anticipation of the film diffusion as the rate-limiting step. The sorption process was generally governed by a combination of physical and chemical sorption mechanisms. The Ag(I) sorption capacity and selectivity of coconut pith biosorbents were low as compared with other metal ions. Taylor and Francis Ltd. 2015-05-04 Article PeerReviewed application/pdf en http://eprints.utm.my/55974/1/NorasikinSaman2015_SilverIonAdsorptionUsingAlkaliandOrganosilane.pdf Saman, Norasikin and Johari, Khairiraihanna and Tien, Songshiow and Mat, Hanapi (2015) Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents. Journal of Natural Fibers, 12 (3). pp. 283-302. ISSN 1544-0478 http://dx.doi.org/10.1080/15440478.2014.923360 DOI:10.1080/15440478.2014.923360 |
| spellingShingle | TP Chemical technology Saman, Norasikin Johari, Khairiraihanna Tien, Songshiow Mat, Hanapi Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title | Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title_full | Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title_fullStr | Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title_full_unstemmed | Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title_short | Silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| title_sort | silver ion adsorption using alkali and organosilane modified coconut pith biosorbents |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/55974/1/NorasikinSaman2015_SilverIonAdsorptionUsingAlkaliandOrganosilane.pdf |
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