Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method

Adsorption of paraquat and pirimiphos-methyl in water was performed on four adsorbents including montmorillonite (Mt), organoclay (TDA-Mt) from intercalation of Mt with tetradecylammonium chloride, and mesoporous Mt from intragallery templating method (with and without Ti addition). The adsorbents w...

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Main Authors: Chalermpan Keawkumay, Suriyan Rakmae, Wina Rongchapo, Nitinat Suppakarn, Sanchai Prayoonpokarach, Jatuporn Wittayakun
Format: Article
Language:English
Published: SAGE Publishing 2017-05-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/0263617416677351
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author Chalermpan Keawkumay
Suriyan Rakmae
Wina Rongchapo
Nitinat Suppakarn
Sanchai Prayoonpokarach
Jatuporn Wittayakun
author_facet Chalermpan Keawkumay
Suriyan Rakmae
Wina Rongchapo
Nitinat Suppakarn
Sanchai Prayoonpokarach
Jatuporn Wittayakun
author_sort Chalermpan Keawkumay
collection DOAJ
description Adsorption of paraquat and pirimiphos-methyl in water was performed on four adsorbents including montmorillonite (Mt), organoclay (TDA-Mt) from intercalation of Mt with tetradecylammonium chloride, and mesoporous Mt from intragallery templating method (with and without Ti addition). The adsorbents were characterized by X-ray diffraction, N 2 adsorption–desorption, and transmission electron microscopy. Paraquat adsorption isotherms followed Langmuir model and the adsorption capacity was as follows: TDA-Mt > Mt > mesoporous Ti-Mt > mesoporous Mt. The adsorption mechanism on TDA-Mt and Mt might be via ion exchange. The adsorption on mesoporous samples was on the external surface with negative charge. The presence of Ti enhanced the adsorption capacity. Pirimiphos-methyl adsorbed on negative charge of the external surface of Mt samples. The adsorbed amount increased with the initial concentration due to a strong intermolecular interaction.
format Article
id doaj-art-a72fe1b061d34d008cae4adb71cc0ffc
institution Kabale University
issn 0263-6174
2048-4038
language English
publishDate 2017-05-01
publisher SAGE Publishing
record_format Article
series Adsorption Science & Technology
spelling doaj-art-a72fe1b061d34d008cae4adb71cc0ffc2025-01-03T01:24:47ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382017-05-013510.1177/0263617416677351Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating methodChalermpan KeawkumaySuriyan RakmaeWina RongchapoNitinat SuppakarnSanchai PrayoonpokarachJatuporn WittayakunAdsorption of paraquat and pirimiphos-methyl in water was performed on four adsorbents including montmorillonite (Mt), organoclay (TDA-Mt) from intercalation of Mt with tetradecylammonium chloride, and mesoporous Mt from intragallery templating method (with and without Ti addition). The adsorbents were characterized by X-ray diffraction, N 2 adsorption–desorption, and transmission electron microscopy. Paraquat adsorption isotherms followed Langmuir model and the adsorption capacity was as follows: TDA-Mt > Mt > mesoporous Ti-Mt > mesoporous Mt. The adsorption mechanism on TDA-Mt and Mt might be via ion exchange. The adsorption on mesoporous samples was on the external surface with negative charge. The presence of Ti enhanced the adsorption capacity. Pirimiphos-methyl adsorbed on negative charge of the external surface of Mt samples. The adsorbed amount increased with the initial concentration due to a strong intermolecular interaction.https://doi.org/10.1177/0263617416677351
spellingShingle Chalermpan Keawkumay
Suriyan Rakmae
Wina Rongchapo
Nitinat Suppakarn
Sanchai Prayoonpokarach
Jatuporn Wittayakun
Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
Adsorption Science & Technology
title Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
title_full Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
title_fullStr Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
title_full_unstemmed Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
title_short Adsorption of paraquat and pirimiphos-methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
title_sort adsorption of paraquat and pirimiphos methyl by montmorillonite modified with tetradecylammonium chloride and intragallery templating method
url https://doi.org/10.1177/0263617416677351
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