Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form
The nature of paraquat adsorption is compared between zeolite NaX and NaY which have the same faujasite structure but different Si/Al ratio, namely 1.2 and 2.2, respectively. The adsorption was proposed to occur via ion exchange and expected to increase with Al content. However, NaX had a lower para...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617417715394 |
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| _version_ | 1841564608860520448 |
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| author | Wina Rongchapo Chalermpan Keawkumay Nattawut Osakoo Krittanun Deekamwong Narong Chanlek Sanchai Prayoonpokarach Jatuporn Wittayakun |
| author_facet | Wina Rongchapo Chalermpan Keawkumay Nattawut Osakoo Krittanun Deekamwong Narong Chanlek Sanchai Prayoonpokarach Jatuporn Wittayakun |
| author_sort | Wina Rongchapo |
| collection | DOAJ |
| description | The nature of paraquat adsorption is compared between zeolite NaX and NaY which have the same faujasite structure but different Si/Al ratio, namely 1.2 and 2.2, respectively. The adsorption was proposed to occur via ion exchange and expected to increase with Al content. However, NaX had a lower paraquat adsorption capacity than NaY. The bare and paraquat-containing zeolites (PQX and PQY) were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, N 2 adsorption–desorption analysis, magic-angle spinning nuclear magnetic resonance (MAS) NMR, and X-ray photoelectron spectroscopy. The presence of adsorbed paraquat was confirmed by Fourier transform infrared spectroscopy. Paraquat adsorbed in supercages of the zeolites resulting in a decrease of surface area and displacement of sodium cations. Results from 23 Na MAS NMR and X-ray photoelectron spectroscopy indicated that interaction of sodium ions in the cavity of NaX was stronger than that in NaY, making it less exchangeable with paraquat. |
| format | Article |
| id | doaj-art-eff9796a21b44e10807422f2bf77fa20 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-eff9796a21b44e10807422f2bf77fa202025-01-02T22:37:41ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-02-013610.1177/0263617417715394Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium formWina RongchapoChalermpan KeawkumayNattawut OsakooKrittanun DeekamwongNarong ChanlekSanchai PrayoonpokarachJatuporn WittayakunThe nature of paraquat adsorption is compared between zeolite NaX and NaY which have the same faujasite structure but different Si/Al ratio, namely 1.2 and 2.2, respectively. The adsorption was proposed to occur via ion exchange and expected to increase with Al content. However, NaX had a lower paraquat adsorption capacity than NaY. The bare and paraquat-containing zeolites (PQX and PQY) were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, N 2 adsorption–desorption analysis, magic-angle spinning nuclear magnetic resonance (MAS) NMR, and X-ray photoelectron spectroscopy. The presence of adsorbed paraquat was confirmed by Fourier transform infrared spectroscopy. Paraquat adsorbed in supercages of the zeolites resulting in a decrease of surface area and displacement of sodium cations. Results from 23 Na MAS NMR and X-ray photoelectron spectroscopy indicated that interaction of sodium ions in the cavity of NaX was stronger than that in NaY, making it less exchangeable with paraquat.https://doi.org/10.1177/0263617417715394 |
| spellingShingle | Wina Rongchapo Chalermpan Keawkumay Nattawut Osakoo Krittanun Deekamwong Narong Chanlek Sanchai Prayoonpokarach Jatuporn Wittayakun Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form Adsorption Science & Technology |
| title | Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form |
| title_full | Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form |
| title_fullStr | Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form |
| title_full_unstemmed | Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form |
| title_short | Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form |
| title_sort | comprehension of paraquat adsorption on faujasite zeolite x and y in sodium form |
| url | https://doi.org/10.1177/0263617417715394 |
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