Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions
The adsorption of Cr(VI) in aqueous solution by magnetic particles of crosslinked chitosan-ethylenediamine-Fe(III) (MPCh-EDA-FeCL) was studied in a batch system. Fe3+ in the MPCh-EDA-FeCL permitted that adsorption of Cr(VI) occurred with maximum efficiency between pH 3 and 11. The maximum adsorption capacity at pH 7.0 was 81.04 mg g-1 at 25 ºC. The adsorption kinetic process was described by the pseudo-second-order model. Thermodynamic parameters indicated spontaneous, exothermic and chemical adsorption nature. The adsorbent was successively regenerated using a 0.1 mol L-1 NaOH solution. Results were satisfactory for treatment of wastewater from the electroplating industry.
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2014
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014001000007 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:scielo:S0100-40422014001000007 |
|---|---|
| record_format |
ojs |
| spelling |
oai:scielo:S0100-404220140010000072014-11-28Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutionsToledo,Thiago V.Bellato,Carlos R.Souza,Carlos H. Ferreira deDomingues,Junielly T.Silva,Danilo de C.Reis,CésarFontes,Maurício P. Ferreira magnetic chitosan adsorption chromium(VI) The adsorption of Cr(VI) in aqueous solution by magnetic particles of crosslinked chitosan-ethylenediamine-Fe(III) (MPCh-EDA-FeCL) was studied in a batch system. Fe3+ in the MPCh-EDA-FeCL permitted that adsorption of Cr(VI) occurred with maximum efficiency between pH 3 and 11. The maximum adsorption capacity at pH 7.0 was 81.04 mg g-1 at 25 ºC. The adsorption kinetic process was described by the pseudo-second-order model. Thermodynamic parameters indicated spontaneous, exothermic and chemical adsorption nature. The adsorbent was successively regenerated using a 0.1 mol L-1 NaOH solution. Results were satisfactory for treatment of wastewater from the electroplating industry.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaQuímica Nova v.37 n.10 20142014-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014001000007en10.5935/0100-4042.20140245 |
| institution |
SCIELO |
| collection |
OJS |
| country |
Brasil |
| countrycode |
BR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-scielo-br |
| tag |
revista |
| region |
America del Sur |
| libraryname |
SciELO |
| language |
English |
| format |
Digital |
| author |
Toledo,Thiago V. Bellato,Carlos R. Souza,Carlos H. Ferreira de Domingues,Junielly T. Silva,Danilo de C. Reis,César Fontes,Maurício P. Ferreira |
| spellingShingle |
Toledo,Thiago V. Bellato,Carlos R. Souza,Carlos H. Ferreira de Domingues,Junielly T. Silva,Danilo de C. Reis,César Fontes,Maurício P. Ferreira Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| author_facet |
Toledo,Thiago V. Bellato,Carlos R. Souza,Carlos H. Ferreira de Domingues,Junielly T. Silva,Danilo de C. Reis,César Fontes,Maurício P. Ferreira |
| author_sort |
Toledo,Thiago V. |
| title |
Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| title_short |
Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| title_full |
Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| title_fullStr |
Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| title_full_unstemmed |
Preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and Fe(III) for the removal of Cr(VI) from aqueous solutions |
| title_sort |
preparation and evaluation of magnetic chitosan particles modified with ethylenediamine and fe(iii) for the removal of cr(vi) from aqueous solutions |
| description |
The adsorption of Cr(VI) in aqueous solution by magnetic particles of crosslinked chitosan-ethylenediamine-Fe(III) (MPCh-EDA-FeCL) was studied in a batch system. Fe3+ in the MPCh-EDA-FeCL permitted that adsorption of Cr(VI) occurred with maximum efficiency between pH 3 and 11. The maximum adsorption capacity at pH 7.0 was 81.04 mg g-1 at 25 ºC. The adsorption kinetic process was described by the pseudo-second-order model. Thermodynamic parameters indicated spontaneous, exothermic and chemical adsorption nature. The adsorbent was successively regenerated using a 0.1 mol L-1 NaOH solution. Results were satisfactory for treatment of wastewater from the electroplating industry. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2014 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014001000007 |
| work_keys_str_mv |
AT toledothiagov preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT bellatocarlosr preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT souzacarloshferreirade preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT dominguesjuniellyt preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT silvadanilodec preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT reiscesar preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions AT fontesmauriciopferreira preparationandevaluationofmagneticchitosanparticlesmodifiedwithethylenediamineandfeiiifortheremovalofcrvifromaqueoussolutions |
| _version_ |
1756387581339107328 |