Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium
The sorption properties of two layered minerals of the hydrotalcite supergroup – hydrotalcite and stichtite – were investigated with the aim of determining their kinetic parameters of sorption and their adsorption isotherm type. Pristine hydrotalcite and stichtite were characterized using X-ray diff...
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| Veröffentlicht in: | Clay minerals 2022-06, Vol.57 (2), p.105-113 |
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| creator | Nestroinaia, Olga V. Ryltsova, Irina G. Yaprintsev, Maksim N. Nakisko, Evgeniya Yu Seliverstov, Evgeniy S. Lebedeva, Olga E. |
| description | The sorption properties of two layered minerals of the hydrotalcite supergroup – hydrotalcite and stichtite – were investigated with the aim of determining their kinetic parameters of sorption and their adsorption isotherm type. Pristine hydrotalcite and stichtite were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, energy-dispersive Х-ray analysis and laser diffraction analysis of the particle-size distribution. The ‘memory effect’ of the sorbents was examined after calcination at 650°C. Slight indications of reconstructed hydrotalcite were observed, while the stichtite dehydration–rehydration cycle was irreversible. The hydrotalcite and stichtite were used to remove Congo Red from the aqueous solution. The pseudo-second order kinetic model described the process adequately. Mixed external and internal diffusion was confirmed for both minerals. The sorption of Congo Red on stichtite fits the Langmuir model. Stichtite demonstrated a maximum adsorption capacity of 2.5 mmol g
–1
at 35°C. Increasing temperature increased the adsorption rate of Congo Red on stichtite but did not affect the adsorption rate constant for hydrotalcite. |
| doi_str_mv | 10.1180/clm.2022.26 |
| format | Article |
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–1
at 35°C. Increasing temperature increased the adsorption rate of Congo Red on stichtite but did not affect the adsorption rate constant for hydrotalcite.</description><identifier>ISSN: 0009-8558</identifier><identifier>EISSN: 1471-8030</identifier><identifier>DOI: 10.1180/clm.2022.26</identifier><language>eng</language><publisher>Middlesex: Cambridge University Press</publisher><subject>Adsorption ; Analytical methods ; Anions ; Aqueous solutions ; Dehydration ; Dyes ; Electron microscopy ; Equilibrium ; Experiments ; Fourier transforms ; Infrared analysis ; Infrared spectroscopy ; Kinetics ; Lasers ; Minerals ; Particle size ; Particle size distribution ; Rehydration ; Scanning electron microscopy ; Size distribution ; Sorbents ; Sorption ; X-ray diffraction</subject><ispartof>Clay minerals, 2022-06, Vol.57 (2), p.105-113</ispartof><rights>Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a284t-de0e2c766117ef2c7ebc9fba5d0901612df7a2330abb032ee0e6aa94ac6799503</citedby><cites>FETCH-LOGICAL-a284t-de0e2c766117ef2c7ebc9fba5d0901612df7a2330abb032ee0e6aa94ac6799503</cites><orcidid>0000-0001-5248-5116 ; 0000-0002-5021-028X ; 0000-0002-7348-3758 ; 0000-0001-8791-8102</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids></links><search><creatorcontrib>Nestroinaia, Olga V.</creatorcontrib><creatorcontrib>Ryltsova, Irina G.</creatorcontrib><creatorcontrib>Yaprintsev, Maksim N.</creatorcontrib><creatorcontrib>Nakisko, Evgeniya Yu</creatorcontrib><creatorcontrib>Seliverstov, Evgeniy S.</creatorcontrib><creatorcontrib>Lebedeva, Olga E.</creatorcontrib><title>Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium</title><title>Clay minerals</title><description>The sorption properties of two layered minerals of the hydrotalcite supergroup – hydrotalcite and stichtite – were investigated with the aim of determining their kinetic parameters of sorption and their adsorption isotherm type. Pristine hydrotalcite and stichtite were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, energy-dispersive Х-ray analysis and laser diffraction analysis of the particle-size distribution. The ‘memory effect’ of the sorbents was examined after calcination at 650°C. Slight indications of reconstructed hydrotalcite were observed, while the stichtite dehydration–rehydration cycle was irreversible. The hydrotalcite and stichtite were used to remove Congo Red from the aqueous solution. The pseudo-second order kinetic model described the process adequately. Mixed external and internal diffusion was confirmed for both minerals. The sorption of Congo Red on stichtite fits the Langmuir model. Stichtite demonstrated a maximum adsorption capacity of 2.5 mmol g
–1
at 35°C. Increasing temperature increased the adsorption rate of Congo Red on stichtite but did not affect the adsorption rate constant for hydrotalcite.</description><subject>Adsorption</subject><subject>Analytical methods</subject><subject>Anions</subject><subject>Aqueous solutions</subject><subject>Dehydration</subject><subject>Dyes</subject><subject>Electron microscopy</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Fourier transforms</subject><subject>Infrared analysis</subject><subject>Infrared spectroscopy</subject><subject>Kinetics</subject><subject>Lasers</subject><subject>Minerals</subject><subject>Particle size</subject><subject>Particle size distribution</subject><subject>Rehydration</subject><subject>Scanning electron microscopy</subject><subject>Size distribution</subject><subject>Sorbents</subject><subject>Sorption</subject><subject>X-ray diffraction</subject><issn>0009-8558</issn><issn>1471-8030</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNotkEtPwzAQhC0EEqVw4g9Y4ohS1nZiJ9xQxUuqhMTjbDm2Q13SOLWdQ_89LuW0O7OfdqRB6JrAgpAa7nS_XVCgdEH5CZqRUpCiBganaAYATVFXVX2OLmLcZMnKms2Q-vBhTM4P2Hd46Ydvj9-twWrIltPY7C3Ot0GlKager_cm-KR67ZLNjMExOb1OWd3jHzfYrOKfb3eT610b3LS9RGed6qO9-p9z9PX0-Ll8KVZvz6_Lh1WhaF2mwliwVAvOCRG2y5ttddO1qjLQAOGEmk4oyhiotgVGbca5Uk2pNBdNUwGbo5vj3zH43WRjkhs_hSFHSioEZAQIzdTtkdLBxxhsJ8fgtirsJQF56FDmDuWhQ0k5-wWrCmWi</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Nestroinaia, Olga V.</creator><creator>Ryltsova, Irina G.</creator><creator>Yaprintsev, Maksim N.</creator><creator>Nakisko, Evgeniya Yu</creator><creator>Seliverstov, Evgeniy S.</creator><creator>Lebedeva, Olga E.</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7RQ</scope><scope>7SR</scope><scope>7UA</scope><scope>7XB</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F1W</scope><scope>H96</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L.G</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0001-5248-5116</orcidid><orcidid>https://orcid.org/0000-0002-5021-028X</orcidid><orcidid>https://orcid.org/0000-0002-7348-3758</orcidid><orcidid>https://orcid.org/0000-0001-8791-8102</orcidid></search><sort><creationdate>20220601</creationdate><title>Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium</title><author>Nestroinaia, Olga V. ; 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Pristine hydrotalcite and stichtite were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, energy-dispersive Х-ray analysis and laser diffraction analysis of the particle-size distribution. The ‘memory effect’ of the sorbents was examined after calcination at 650°C. Slight indications of reconstructed hydrotalcite were observed, while the stichtite dehydration–rehydration cycle was irreversible. The hydrotalcite and stichtite were used to remove Congo Red from the aqueous solution. The pseudo-second order kinetic model described the process adequately. Mixed external and internal diffusion was confirmed for both minerals. The sorption of Congo Red on stichtite fits the Langmuir model. Stichtite demonstrated a maximum adsorption capacity of 2.5 mmol g
–1
at 35°C. Increasing temperature increased the adsorption rate of Congo Red on stichtite but did not affect the adsorption rate constant for hydrotalcite.</abstract><cop>Middlesex</cop><pub>Cambridge University Press</pub><doi>10.1180/clm.2022.26</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-5248-5116</orcidid><orcidid>https://orcid.org/0000-0002-5021-028X</orcidid><orcidid>https://orcid.org/0000-0002-7348-3758</orcidid><orcidid>https://orcid.org/0000-0001-8791-8102</orcidid></addata></record> |
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| ispartof | Clay minerals, 2022-06, Vol.57 (2), p.105-113 |
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| source | Cambridge University Press Journals Complete |
| subjects | Adsorption Analytical methods Anions Aqueous solutions Dehydration Dyes Electron microscopy Equilibrium Experiments Fourier transforms Infrared analysis Infrared spectroscopy Kinetics Lasers Minerals Particle size Particle size distribution Rehydration Scanning electron microscopy Size distribution Sorbents Sorption X-ray diffraction |
| title | Sorption of Congo Red anionic dye on natural hydrotalcite and stichtite: kinetics and equilibrium |
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