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Ali Ahmad H, Thomas S, Bazin P, Vicente A, Fernandez C, Awala H, Mintova S. Nanosized Na-EMT and Li-EMT zeolites: selective sorption of water and methanol studied by a combined IR and TG approach. Phys Chem Chem Phys 2016; 18:30585-30594. [PMID: 27785497 DOI: 10.1039/c6cp05766g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanosized EMT-type zeolite crystals in sodium (Na-EMT) and ion-exchanged lithium (Li-EMT) forms were prepared. The sorption behavior of Li(Na)-EMT samples towards water, methanol and a mixture of both (50 : 50) was studied by combined thermogravimetric and infrared spectroscopic methods. The stability of the samples prior to and after the sorption measurements in two subsequent cycles was confirmed by X-ray diffraction, N2 sorption and NMR spectroscopy. The high sorption capacity of the Li-EMT sample towards water was demonstrated. It was found that the methanol is replaced by water faster in the Li-EMT sample in comparison to the Na-EMT sample. At low temperature, the methanol shows weak adsorption on each cationic site and no side products during desorption for both samples were obtained.
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Affiliation(s)
- Hacan Ali Ahmad
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Sébastien Thomas
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Philippe Bazin
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Aurélie Vicente
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Christian Fernandez
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Hussein Awala
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
| | - Svetlana Mintova
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Boulevard Maréchal Juin, 14050 Caen, France.
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Boudrahem F, Aissani-Benissad F, Soualah A. Kinetic and Equilibrium Study of the Sorption of Lead(II) Ions from Aqueous Phase by Activated Carbon. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2013. [DOI: 10.1007/s13369-013-0614-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Pattaraprakorn W, Nakamura R, Aida T, Niiyama H. Adsorption of CO2 and N2 onto Charcoal Treated at Different Temperatures. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2005. [DOI: 10.1252/jcej.38.366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Woraratana Pattaraprakorn
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Ryuichi Nakamura
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Takashi Aida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Hiroo Niiyama
- Global Scientific Information and Computing Center, Tokyo Institute of Technology
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