Adsorption of reactive red dye (RR-120) on nanoadsorbent O-carboxymethylchitosan/γ-Fe 2 O 3 : kinetic, equilibrium and factorial design studies
In this study, a novel magnetically separable nanoadsorbent, consisting of a γ-Fe 2 O 3 and O -carboxymethylchitosan (O-CM), was synthesized in a three-step procedure. The structure of O-CM was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), vibratin...
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| Veröffentlicht in: | RSC advances 2016, Vol.6 (41), p.35058-35070 |
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| creator | Demarchi, Carla Albertina Chahm, Tamiris Martins, Bruna Aparecida Debrassi, Aline Nedelko, Natalia Ślawska-Waniewska, Anna Dłużewski, Piotr Dynowska, Elżbieta Greneche, Jean-Marc Rodrigues, Clovis Antonio |
| description | In this study, a novel magnetically separable nanoadsorbent, consisting of a γ-Fe
2
O
3
and
O
-carboxymethylchitosan (O-CM), was synthesized in a three-step procedure. The structure of O-CM was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), vibrating-sample magnetometer (VSM), and transmission electron microscope (SEM). Adsorption features of the magnetic nanoadsorbent were evaluated using the dye reactive red 120 (RR120). The isotherms, kinetics, and thermodynamics of the dye adsorption were studied in various experimental conditions,
i.e.
, initial dye concentration, contact time, solution pH and temperature. The effects of pH, initial dye concentration and temperature were investigated by the 3
3
Box–Behnken factorial experimental design method, and the statistical approach analysis of variance was used to optimize the operating conditions. The results obtained fitted well to the Langmuir–Freundlich model, and the kinetics of the adsorption process were found to follow the pseudo-second-order kinetics. The thermodynamic study was conducted by calculating a number of thermodynamic parameters, such as the standard changes in Δ
G
°, Δ
H
° and Δ
S
°. The high sensitivity of the magnetic nanoadsorbent to the external magnetic field culminates in its efficient and easy separation and good adsorption ability, demonstrating great potential in the application of water treatment. |
| doi_str_mv | 10.1039/C6RA04249J |
| format | Article |
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2
O
3
and
O
-carboxymethylchitosan (O-CM), was synthesized in a three-step procedure. The structure of O-CM was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), vibrating-sample magnetometer (VSM), and transmission electron microscope (SEM). Adsorption features of the magnetic nanoadsorbent were evaluated using the dye reactive red 120 (RR120). The isotherms, kinetics, and thermodynamics of the dye adsorption were studied in various experimental conditions,
i.e.
, initial dye concentration, contact time, solution pH and temperature. The effects of pH, initial dye concentration and temperature were investigated by the 3
3
Box–Behnken factorial experimental design method, and the statistical approach analysis of variance was used to optimize the operating conditions. The results obtained fitted well to the Langmuir–Freundlich model, and the kinetics of the adsorption process were found to follow the pseudo-second-order kinetics. The thermodynamic study was conducted by calculating a number of thermodynamic parameters, such as the standard changes in Δ
G
°, Δ
H
° and Δ
S
°. The high sensitivity of the magnetic nanoadsorbent to the external magnetic field culminates in its efficient and easy separation and good adsorption ability, demonstrating great potential in the application of water treatment.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/C6RA04249J</identifier><language>eng</language><publisher>Royal Society of Chemistry</publisher><subject>Condensed Matter ; Physics</subject><ispartof>RSC advances, 2016, Vol.6 (41), p.35058-35070</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1101-4370536375e3f600e2307fc45ae29c0bedb5d30f8e2a63d784fba11fc07fdbc83</citedby><cites>FETCH-LOGICAL-c1101-4370536375e3f600e2307fc45ae29c0bedb5d30f8e2a63d784fba11fc07fdbc83</cites><orcidid>0000-0001-7309-8633</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.science/hal-02269333$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Demarchi, Carla Albertina</creatorcontrib><creatorcontrib>Chahm, Tamiris</creatorcontrib><creatorcontrib>Martins, Bruna Aparecida</creatorcontrib><creatorcontrib>Debrassi, Aline</creatorcontrib><creatorcontrib>Nedelko, Natalia</creatorcontrib><creatorcontrib>Ślawska-Waniewska, Anna</creatorcontrib><creatorcontrib>Dłużewski, Piotr</creatorcontrib><creatorcontrib>Dynowska, Elżbieta</creatorcontrib><creatorcontrib>Greneche, Jean-Marc</creatorcontrib><creatorcontrib>Rodrigues, Clovis Antonio</creatorcontrib><title>Adsorption of reactive red dye (RR-120) on nanoadsorbent O-carboxymethylchitosan/γ-Fe 2 O 3 : kinetic, equilibrium and factorial design studies</title><title>RSC advances</title><description>In this study, a novel magnetically separable nanoadsorbent, consisting of a γ-Fe
2
O
3
and
O
-carboxymethylchitosan (O-CM), was synthesized in a three-step procedure. The structure of O-CM was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), vibrating-sample magnetometer (VSM), and transmission electron microscope (SEM). Adsorption features of the magnetic nanoadsorbent were evaluated using the dye reactive red 120 (RR120). The isotherms, kinetics, and thermodynamics of the dye adsorption were studied in various experimental conditions,
i.e.
, initial dye concentration, contact time, solution pH and temperature. The effects of pH, initial dye concentration and temperature were investigated by the 3
3
Box–Behnken factorial experimental design method, and the statistical approach analysis of variance was used to optimize the operating conditions. The results obtained fitted well to the Langmuir–Freundlich model, and the kinetics of the adsorption process were found to follow the pseudo-second-order kinetics. The thermodynamic study was conducted by calculating a number of thermodynamic parameters, such as the standard changes in Δ
G
°, Δ
H
° and Δ
S
°. The high sensitivity of the magnetic nanoadsorbent to the external magnetic field culminates in its efficient and easy separation and good adsorption ability, demonstrating great potential in the application of water treatment.</description><subject>Condensed Matter</subject><subject>Physics</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNkE1OwzAQhSMEElXphhN4SRGh_kmchl1UUQqqVKmCdeTYY2pI7WKnFbkFd-EenIlURcBs5mnmmzfSi6Jzgq8JZvlowpcFTmiSPxxFPYoTHlPM8-N_-jQahPCCu-IpoZz0oo9CBec3jXEWOY08CNmYHXRCIdUCulguY0LxEHV7K6wTe7wC26BFLIWv3Hu7hmbV1nJlGheEHX19xlNAFC0QQzfo1VhojLxC8LY1tam82a6RsArp7pHzRtRIQTDPFoVmqwyEs-hEizrA4Kf3o6fp7eNkFs8Xd_eTYh5LQjCJE5bhlHGWpcA0xxgow5mWSSqA5hJXoKpUMazHQAVnKhsnuhKEaNlRqpJj1o-GB9-VqMuNN2vh29IJU86KebmfYUp5zhjbkY69PLDSuxA86N8Dgst99OVf9OwbQWJ2TA</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Demarchi, Carla Albertina</creator><creator>Chahm, Tamiris</creator><creator>Martins, Bruna Aparecida</creator><creator>Debrassi, Aline</creator><creator>Nedelko, Natalia</creator><creator>Ślawska-Waniewska, Anna</creator><creator>Dłużewski, Piotr</creator><creator>Dynowska, Elżbieta</creator><creator>Greneche, Jean-Marc</creator><creator>Rodrigues, Clovis Antonio</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-7309-8633</orcidid></search><sort><creationdate>2016</creationdate><title>Adsorption of reactive red dye (RR-120) on nanoadsorbent O-carboxymethylchitosan/γ-Fe 2 O 3 : kinetic, equilibrium and factorial design studies</title><author>Demarchi, Carla Albertina ; Chahm, Tamiris ; Martins, Bruna Aparecida ; Debrassi, Aline ; Nedelko, Natalia ; Ślawska-Waniewska, Anna ; Dłużewski, Piotr ; Dynowska, Elżbieta ; Greneche, Jean-Marc ; Rodrigues, Clovis Antonio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1101-4370536375e3f600e2307fc45ae29c0bedb5d30f8e2a63d784fba11fc07fdbc83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Condensed Matter</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Demarchi, Carla Albertina</creatorcontrib><creatorcontrib>Chahm, Tamiris</creatorcontrib><creatorcontrib>Martins, Bruna Aparecida</creatorcontrib><creatorcontrib>Debrassi, Aline</creatorcontrib><creatorcontrib>Nedelko, Natalia</creatorcontrib><creatorcontrib>Ślawska-Waniewska, Anna</creatorcontrib><creatorcontrib>Dłużewski, Piotr</creatorcontrib><creatorcontrib>Dynowska, Elżbieta</creatorcontrib><creatorcontrib>Greneche, Jean-Marc</creatorcontrib><creatorcontrib>Rodrigues, Clovis Antonio</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Demarchi, Carla Albertina</au><au>Chahm, Tamiris</au><au>Martins, Bruna Aparecida</au><au>Debrassi, Aline</au><au>Nedelko, Natalia</au><au>Ślawska-Waniewska, Anna</au><au>Dłużewski, Piotr</au><au>Dynowska, Elżbieta</au><au>Greneche, Jean-Marc</au><au>Rodrigues, Clovis Antonio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption of reactive red dye (RR-120) on nanoadsorbent O-carboxymethylchitosan/γ-Fe 2 O 3 : kinetic, equilibrium and factorial design studies</atitle><jtitle>RSC advances</jtitle><date>2016</date><risdate>2016</risdate><volume>6</volume><issue>41</issue><spage>35058</spage><epage>35070</epage><pages>35058-35070</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>In this study, a novel magnetically separable nanoadsorbent, consisting of a γ-Fe
2
O
3
and
O
-carboxymethylchitosan (O-CM), was synthesized in a three-step procedure. The structure of O-CM was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), vibrating-sample magnetometer (VSM), and transmission electron microscope (SEM). Adsorption features of the magnetic nanoadsorbent were evaluated using the dye reactive red 120 (RR120). The isotherms, kinetics, and thermodynamics of the dye adsorption were studied in various experimental conditions,
i.e.
, initial dye concentration, contact time, solution pH and temperature. The effects of pH, initial dye concentration and temperature were investigated by the 3
3
Box–Behnken factorial experimental design method, and the statistical approach analysis of variance was used to optimize the operating conditions. The results obtained fitted well to the Langmuir–Freundlich model, and the kinetics of the adsorption process were found to follow the pseudo-second-order kinetics. The thermodynamic study was conducted by calculating a number of thermodynamic parameters, such as the standard changes in Δ
G
°, Δ
H
° and Δ
S
°. The high sensitivity of the magnetic nanoadsorbent to the external magnetic field culminates in its efficient and easy separation and good adsorption ability, demonstrating great potential in the application of water treatment.</abstract><pub>Royal Society of Chemistry</pub><doi>10.1039/C6RA04249J</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0001-7309-8633</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals |
| subjects | Condensed Matter Physics |
| title | Adsorption of reactive red dye (RR-120) on nanoadsorbent O-carboxymethylchitosan/γ-Fe 2 O 3 : kinetic, equilibrium and factorial design studies |
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