The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin
This study describes the synthesis, characterization and application of a new amino-substituted p-tert-butylcalix[4]arene-based magnetic sporopollenin, Calix-EPPTMS-MS (4), for the removal of two toxic organophosphorus pesticides, namely chlorpyrifos and diazinon, from contaminated water. The synthe...
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my.utm.727262017-11-27T09:02:12Z http://eprints.utm.my/id/eprint/72726/ The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin Kamboh, Muhammad Afzal Wan Ibrahim, Wan Aini Nodeh, Hamid Rashidi Sanagi, Mohd. Marsin Sherazi, Syed Tufail Hussain QD Chemistry This study describes the synthesis, characterization and application of a new amino-substituted p-tert-butylcalix[4]arene-based magnetic sporopollenin, Calix-EPPTMS-MS (4), for the removal of two toxic organophosphorus pesticides, namely chlorpyrifos and diazinon, from contaminated water. The synthesized Calix-EPPTMS-MS (4) was characterized using FT-IR spectroscopy, a UV-Vis spectrophotometer, an elemental analyzer, scanning electron microscopy and energy dispersive spectroscopy. The pesticide removal efficiency of Calix-EPPTMS-MS (4) was evaluated through a batch-wise method and gas chromatography using a micro-electron capture detector (GC-μECD). Experimental parameterssuch as adsorbent dosage, pesticide concentration, solution pH and contact time were optimized. Excellent removal efficiencies of 96% for chlorpyrifos and 88% for diazinon were achieved at pH 7 within 10 min of contact time. Kinetic studies showed that both pesticides followed the pseudo-second-order rate model with a coefficient of determination (R2) of 0.999. The Langmuir and Dubinin-Radushkevich isotherms with high values of R2 revealed that chlorpyrifos and diazinon adsorption on the Calix-EPPTMS-MS (4) adsorbent follows the chemisorption mechanism. Pesticide contaminated wastewater samples were used to assess the field applicability of the Calix-EPPTMS-MS (4) adsorbent. The results obtained showed that the newly fabricated adsorbent material Calix-EPPTMS-MS (4) is an efficient adsorbent and exhibits great potential as an alternative adsorbent for pesticide removal. Royal Society of Chemistry 2016 Article PeerReviewed Kamboh, Muhammad Afzal and Wan Ibrahim, Wan Aini and Nodeh, Hamid Rashidi and Sanagi, Mohd. Marsin and Sherazi, Syed Tufail Hussain (2016) The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin. New Journal of Chemistry, 40 (4). pp. 3130-3138. ISSN 1144-0546 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964632141&doi=10.1039%2fc5nj02284c&partnerID=40&md5=c8fbcb17088f2863c21c69c719abf6a1 |
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QD Chemistry Kamboh, Muhammad Afzal Wan Ibrahim, Wan Aini Nodeh, Hamid Rashidi Sanagi, Mohd. Marsin Sherazi, Syed Tufail Hussain The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
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This study describes the synthesis, characterization and application of a new amino-substituted p-tert-butylcalix[4]arene-based magnetic sporopollenin, Calix-EPPTMS-MS (4), for the removal of two toxic organophosphorus pesticides, namely chlorpyrifos and diazinon, from contaminated water. The synthesized Calix-EPPTMS-MS (4) was characterized using FT-IR spectroscopy, a UV-Vis spectrophotometer, an elemental analyzer, scanning electron microscopy and energy dispersive spectroscopy. The pesticide removal efficiency of Calix-EPPTMS-MS (4) was evaluated through a batch-wise method and gas chromatography using a micro-electron capture detector (GC-μECD). Experimental parameterssuch as adsorbent dosage, pesticide concentration, solution pH and contact time were optimized. Excellent removal efficiencies of 96% for chlorpyrifos and 88% for diazinon were achieved at pH 7 within 10 min of contact time. Kinetic studies showed that both pesticides followed the pseudo-second-order rate model with a coefficient of determination (R2) of 0.999. The Langmuir and Dubinin-Radushkevich isotherms with high values of R2 revealed that chlorpyrifos and diazinon adsorption on the Calix-EPPTMS-MS (4) adsorbent follows the chemisorption mechanism. Pesticide contaminated wastewater samples were used to assess the field applicability of the Calix-EPPTMS-MS (4) adsorbent. The results obtained showed that the newly fabricated adsorbent material Calix-EPPTMS-MS (4) is an efficient adsorbent and exhibits great potential as an alternative adsorbent for pesticide removal. |
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Article |
author |
Kamboh, Muhammad Afzal Wan Ibrahim, Wan Aini Nodeh, Hamid Rashidi Sanagi, Mohd. Marsin Sherazi, Syed Tufail Hussain |
author_facet |
Kamboh, Muhammad Afzal Wan Ibrahim, Wan Aini Nodeh, Hamid Rashidi Sanagi, Mohd. Marsin Sherazi, Syed Tufail Hussain |
author_sort |
Kamboh, Muhammad Afzal |
title |
The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
title_short |
The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
title_full |
The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
title_fullStr |
The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
title_full_unstemmed |
The removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
title_sort |
removal of organophosphorus pesticides from water using a new amino-substituted calixarene-based magnetic sporopollenin |
publisher |
Royal Society of Chemistry |
publishDate |
2016 |
url |
http://eprints.utm.my/id/eprint/72726/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964632141&doi=10.1039%2fc5nj02284c&partnerID=40&md5=c8fbcb17088f2863c21c69c719abf6a1 |
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1643656506175913984 |
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13.211869 |