Kinetic study and sorption mechanism of uranium (VI) onto NaY zeolite
Radioactive Uranium (VI) was removed by adsorption on NaY zeolite. The synthesized NaY zeolite sorbent was characterized with several techniques: X-ray diffraction XRD, scanning electronic microscopy MEB and Infrared spectroscopy measurements FTIR. Textural properties were determined by N2 adsorptio...
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| creator | Houhoune, F. Khemaissia, S. Nibou, D. Chegrouche, S. Menacer, S. |
| description | Radioactive Uranium (VI) was removed by adsorption on NaY zeolite. The synthesized NaY zeolite sorbent was characterized with several techniques: X-ray diffraction XRD, scanning electronic microscopy MEB and Infrared spectroscopy measurements FTIR. Textural properties were determined by N2 adsorption isotherm. Batch adsorption experiments were performed to study the adsorption of uranium (VI) from aqueous solutions on NaY zeolite material. Operating variables studied include solution pH, contact time and temperature. Equilibrium data were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich models. The equilibrium data were best represented by the Langmuir isotherm model. Sorption kinetic data were fitted using pseudo first order, pseudo second order models and Intraparticule diffusion model. The experimental data fitted very well the pseudo second order model. The process mechanism was found to be complex, consisting of both mass transfer and intraparticle diffusion. The thermodynamic parameters such as standard free energy ΔG0, standard enthalpy ΔH0 and standard entropy ΔS0 have been determined which indicates a spontaneous exothermic adsorption process. |
| doi_str_mv | 10.1063/1.5048180 |
| format | Conference Proceeding |
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The synthesized NaY zeolite sorbent was characterized with several techniques: X-ray diffraction XRD, scanning electronic microscopy MEB and Infrared spectroscopy measurements FTIR. Textural properties were determined by N2 adsorption isotherm. Batch adsorption experiments were performed to study the adsorption of uranium (VI) from aqueous solutions on NaY zeolite material. Operating variables studied include solution pH, contact time and temperature. Equilibrium data were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich models. The equilibrium data were best represented by the Langmuir isotherm model. Sorption kinetic data were fitted using pseudo first order, pseudo second order models and Intraparticule diffusion model. The experimental data fitted very well the pseudo second order model. The process mechanism was found to be complex, consisting of both mass transfer and intraparticle diffusion. 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The synthesized NaY zeolite sorbent was characterized with several techniques: X-ray diffraction XRD, scanning electronic microscopy MEB and Infrared spectroscopy measurements FTIR. Textural properties were determined by N2 adsorption isotherm. Batch adsorption experiments were performed to study the adsorption of uranium (VI) from aqueous solutions on NaY zeolite material. Operating variables studied include solution pH, contact time and temperature. Equilibrium data were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich models. The equilibrium data were best represented by the Langmuir isotherm model. Sorption kinetic data were fitted using pseudo first order, pseudo second order models and Intraparticule diffusion model. The experimental data fitted very well the pseudo second order model. The process mechanism was found to be complex, consisting of both mass transfer and intraparticle diffusion. The thermodynamic parameters such as standard free energy ΔG0, standard enthalpy ΔH0 and standard entropy ΔS0 have been determined which indicates a spontaneous exothermic adsorption process.</description><subject>Adsorption</subject><subject>Enthalpy</subject><subject>Fourier transforms</subject><subject>Free energy</subject><subject>Isotherms</subject><subject>Mass transfer</subject><subject>Sorption</subject><subject>Uranium</subject><subject>X-ray diffraction</subject><subject>Zeolites</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2018</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNotkD1PwzAYhC0EEqUw8A8ssQBSit_4I86IqhYqKlgAwWS5zhvhqolL7Azl15Oqne6GR3e6I-Qa2ASY4g8wkUxo0OyEjEBKyAoF6pSMGCtFlgv-dU4uYlwzlpdFoUdk9uJbTN7RmPpqR21b0Ri6bfKhpQ26H9v62NBQ074bbN_Q28_FHQ1tCvTVftM_DBuf8JKc1XYT8eqoY_Ixn71Pn7Pl29Ni-rjMXC51ypxdOVXxWlZClLpEW9coES2TIKBG1AKckOCYcIXiHKqVVjlyKbmuFJacj8nNIXfbhd8eYzLr0HftUGlyphVn-dAzUPcHKjqf7H6K2Xa-sd3OADP7mwyY4038H3cJWL4</recordid><startdate>20180801</startdate><enddate>20180801</enddate><creator>Houhoune, F.</creator><creator>Khemaissia, S.</creator><creator>Nibou, D.</creator><creator>Chegrouche, S.</creator><creator>Menacer, S.</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20180801</creationdate><title>Kinetic study and sorption mechanism of uranium (VI) onto NaY zeolite</title><author>Houhoune, F. ; Khemaissia, S. ; Nibou, D. ; Chegrouche, S. ; Menacer, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c258t-cabc6d3f5d44989eaffe5eea05141fee841c451c04c76331db862e35538d6e933</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorption</topic><topic>Enthalpy</topic><topic>Fourier transforms</topic><topic>Free energy</topic><topic>Isotherms</topic><topic>Mass transfer</topic><topic>Sorption</topic><topic>Uranium</topic><topic>X-ray diffraction</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Houhoune, F.</creatorcontrib><creatorcontrib>Khemaissia, S.</creatorcontrib><creatorcontrib>Nibou, D.</creatorcontrib><creatorcontrib>Chegrouche, S.</creatorcontrib><creatorcontrib>Menacer, S.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Houhoune, F.</au><au>Khemaissia, S.</au><au>Nibou, D.</au><au>Chegrouche, S.</au><au>Menacer, S.</au><au>Alghem-Hamidatou, Lylia</au><au>Sidi-Ali, Kamel</au><au>Amokrane, Arezki</au><au>Adimi, Nassima</au><au>Belgaid, Mohamed</au><au>Bouzid, Boualem</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Kinetic study and sorption mechanism of uranium (VI) onto NaY zeolite</atitle><btitle>AIP conference proceedings</btitle><date>2018-08-01</date><risdate>2018</risdate><volume>1994</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>Radioactive Uranium (VI) was removed by adsorption on NaY zeolite. The synthesized NaY zeolite sorbent was characterized with several techniques: X-ray diffraction XRD, scanning electronic microscopy MEB and Infrared spectroscopy measurements FTIR. Textural properties were determined by N2 adsorption isotherm. Batch adsorption experiments were performed to study the adsorption of uranium (VI) from aqueous solutions on NaY zeolite material. Operating variables studied include solution pH, contact time and temperature. Equilibrium data were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich models. The equilibrium data were best represented by the Langmuir isotherm model. Sorption kinetic data were fitted using pseudo first order, pseudo second order models and Intraparticule diffusion model. The experimental data fitted very well the pseudo second order model. The process mechanism was found to be complex, consisting of both mass transfer and intraparticle diffusion. The thermodynamic parameters such as standard free energy ΔG0, standard enthalpy ΔH0 and standard entropy ΔS0 have been determined which indicates a spontaneous exothermic adsorption process.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5048180</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2018, Vol.1994 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_proquest_journals_2086302258 |
| source | AIP Journals Complete |
| subjects | Adsorption Enthalpy Fourier transforms Free energy Isotherms Mass transfer Sorption Uranium X-ray diffraction Zeolites |
| title | Kinetic study and sorption mechanism of uranium (VI) onto NaY zeolite |
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