p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite
<p class="orbitalabstract">Natural adsorbent prepared from kaolin clay (RK) as well as RK modified separately with cysteine (CYMK), and chitosan (CHMK) was used for the removal of p-nitrophenol (PNP) from aqueous solution. Prepared adsorbents were fully characterized using X-ray diff...
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Universidade Federal de Mato Grosso do Sul
2018-09-01
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Online Access: | http://orbital.ufms.br/index.php/Chemistry/article/view/1143 |
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doaj-f3452b9dfa284d8e893690278e031c562021-07-07T19:22:39ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282018-09-0110643544510.17807/orbital.v10i6.1143518p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified KaoliniteFolahan Amoo Adekola0Sodiq Jimoh1Adejumoke Abosede Inyinbor2Industrial Chemistry department, University of IlorinIndustrial Chemistry department, University of IlorinLandmark University, Km 4 Ipetu-Omu Aran road, Omu Aran, Kwara state, Nigeria.<p class="orbitalabstract">Natural adsorbent prepared from kaolin clay (RK) as well as RK modified separately with cysteine (CYMK), and chitosan (CHMK) was used for the removal of p-nitrophenol (PNP) from aqueous solution. Prepared adsorbents were fully characterized using X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscope (SEM) and Fourier Transformed Infrared Spectroscopy (FTIR). Vivid characteristics of kaolinite were shown by FTIR spectroscopy and surface modification showed new absorption bands which corresponds to the unique functional groups in the modifying agents. Surface morphology was also altered after modification. Surface modification enhanced adsorption capacity. Adsorption data fitted best into the Freundlich adsorption isotherm for the three adsorption systems thus suggesting multi surface adsorption. The maximum monolayer adsorption capacities were 6.94 mg/g, 4.61 mg/g and 6.56 mg/g for PNP-RK, PNP-CYMK and PNP-CHMK systems respectively. The pseudo second order kinetics best described the kinetics of the adsorption system. Temperature effects showed that the adsorbents were stable across the temperature considered and thermodynamic parameters showed that the adsorption processes were feasible and spontaneous.</p><p class="orbitalabstract"> </p><p class="orbitalabstract">DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i6.1143">http://dx.doi.org/10.17807/orbital.v10i6.1143</a></p><p> </p>http://orbital.ufms.br/index.php/Chemistry/article/view/1143p-nitrophenolkaolinechitosancysteine |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Folahan Amoo Adekola Sodiq Jimoh Adejumoke Abosede Inyinbor |
spellingShingle |
Folahan Amoo Adekola Sodiq Jimoh Adejumoke Abosede Inyinbor p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite Orbital: The Electronic Journal of Chemistry p-nitrophenol kaoline chitosan cysteine |
author_facet |
Folahan Amoo Adekola Sodiq Jimoh Adejumoke Abosede Inyinbor |
author_sort |
Folahan Amoo Adekola |
title |
p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite |
title_short |
p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite |
title_full |
p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite |
title_fullStr |
p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite |
title_full_unstemmed |
p-Nitrophenol Removal from Aqueous Solution Using Raw and Modified Kaolinite |
title_sort |
p-nitrophenol removal from aqueous solution using raw and modified kaolinite |
publisher |
Universidade Federal de Mato Grosso do Sul |
series |
Orbital: The Electronic Journal of Chemistry |
issn |
1984-6428 |
publishDate |
2018-09-01 |
description |
<p class="orbitalabstract">Natural adsorbent prepared from kaolin clay (RK) as well as RK modified separately with cysteine (CYMK), and chitosan (CHMK) was used for the removal of p-nitrophenol (PNP) from aqueous solution. Prepared adsorbents were fully characterized using X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscope (SEM) and Fourier Transformed Infrared Spectroscopy (FTIR). Vivid characteristics of kaolinite were shown by FTIR spectroscopy and surface modification showed new absorption bands which corresponds to the unique functional groups in the modifying agents. Surface morphology was also altered after modification. Surface modification enhanced adsorption capacity. Adsorption data fitted best into the Freundlich adsorption isotherm for the three adsorption systems thus suggesting multi surface adsorption. The maximum monolayer adsorption capacities were 6.94 mg/g, 4.61 mg/g and 6.56 mg/g for PNP-RK, PNP-CYMK and PNP-CHMK systems respectively. The pseudo second order kinetics best described the kinetics of the adsorption system. Temperature effects showed that the adsorbents were stable across the temperature considered and thermodynamic parameters showed that the adsorption processes were feasible and spontaneous.</p><p class="orbitalabstract"> </p><p class="orbitalabstract">DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i6.1143">http://dx.doi.org/10.17807/orbital.v10i6.1143</a></p><p> </p> |
topic |
p-nitrophenol kaoline chitosan cysteine |
url |
http://orbital.ufms.br/index.php/Chemistry/article/view/1143 |
work_keys_str_mv |
AT folahanamooadekola pnitrophenolremovalfromaqueoussolutionusingrawandmodifiedkaolinite AT sodiqjimoh pnitrophenolremovalfromaqueoussolutionusingrawandmodifiedkaolinite AT adejumokeabosedeinyinbor pnitrophenolremovalfromaqueoussolutionusingrawandmodifiedkaolinite |
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1721314727048511488 |