Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate
The adsorption of polyvinylpyrrolidone over the surface of silica has been investigated. The impact of molar mass of the polymer, pH, and pretreatment temperature of silica particles have been evaluated by means of FTIR spectroscopy and electrophoretic measurements. The silica particles used have na...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2016/2417292 |
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| author | Laila M. Al-Harbi Samia A. Kosa Musa K. Baloch Qaisar A. Bhatti El-Sayed El-Badawey H. El-Mossalamy |
| author_facet | Laila M. Al-Harbi Samia A. Kosa Musa K. Baloch Qaisar A. Bhatti El-Sayed El-Badawey H. El-Mossalamy |
| author_sort | Laila M. Al-Harbi |
| collection | DOAJ |
| description | The adsorption of polyvinylpyrrolidone over the surface of silica has been investigated. The impact of molar mass of the polymer, pH, and pretreatment temperature of silica particles have been evaluated by means of FTIR spectroscopy and electrophoretic measurements. The silica particles used have narrow particle size distribution. The zeta potential of the aqueous silica suspension was decreased with the increase in pH. The amount of polymer adsorbed was increased with the increase in pretreatment temperature, time, concentration, pH, zeta potential, and molar mass of the polymer. The addition of polymer to the system increased the zeta potential due to adsorption of polymer on the surface of the particles. However, the impact increased with the increase in molecular mass of the polymer. The IR spectra obtained before and after adsorption of polymer concluded that, mostly, hydrogen bonding is responsible for the adsorption phenomena; however, hydrophobic interactions also play a significant role. The mechanism has been investigated and established through FTIR spectroscopy. |
| format | Article |
| id | doaj-art-f95331a25b59425ba5e3c7713627de86 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-f95331a25b59425ba5e3c7713627de862025-02-03T01:24:14ZengWileyInternational Journal of Polymer Science1687-94221687-94302016-01-01201610.1155/2016/24172922417292Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer AdsorbateLaila M. Al-Harbi0Samia A. Kosa1Musa K. Baloch2Qaisar A. Bhatti3El-Sayed El-Badawey H. El-Mossalamy4Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaInstitute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, PakistanInstitute of Chemical Sciences, Gomal University, Dera Ismail Khan 29050, PakistanDepartment of Chemistry, Faculty of Science, Benha University, Benha 13518, EgyptThe adsorption of polyvinylpyrrolidone over the surface of silica has been investigated. The impact of molar mass of the polymer, pH, and pretreatment temperature of silica particles have been evaluated by means of FTIR spectroscopy and electrophoretic measurements. The silica particles used have narrow particle size distribution. The zeta potential of the aqueous silica suspension was decreased with the increase in pH. The amount of polymer adsorbed was increased with the increase in pretreatment temperature, time, concentration, pH, zeta potential, and molar mass of the polymer. The addition of polymer to the system increased the zeta potential due to adsorption of polymer on the surface of the particles. However, the impact increased with the increase in molecular mass of the polymer. The IR spectra obtained before and after adsorption of polymer concluded that, mostly, hydrogen bonding is responsible for the adsorption phenomena; however, hydrophobic interactions also play a significant role. The mechanism has been investigated and established through FTIR spectroscopy.http://dx.doi.org/10.1155/2016/2417292 |
| spellingShingle | Laila M. Al-Harbi Samia A. Kosa Musa K. Baloch Qaisar A. Bhatti El-Sayed El-Badawey H. El-Mossalamy Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate International Journal of Polymer Science |
| title | Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate |
| title_full | Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate |
| title_fullStr | Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate |
| title_full_unstemmed | Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate |
| title_short | Adsorption of Polyvinylpyrrolidone over the Silica Surface: As Affected by Pretreatment of Adsorbent and Molar Mass of Polymer Adsorbate |
| title_sort | adsorption of polyvinylpyrrolidone over the silica surface as affected by pretreatment of adsorbent and molar mass of polymer adsorbate |
| url | http://dx.doi.org/10.1155/2016/2417292 |
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