Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles
In the present work, superparamagnetic iron oxide nanoparticles (SPION) surface-coated with 3-mercaptopropanoic acid (3-MPA) were prepared and their feasibility for the removal of arsenate from dilute aqueous solutions was demonstrated. The synthesized 3-MPA-coated SPION was characterized using tran...
| Authors: | ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2015 |
| Country: | España |
| Institution: | Universitat Autònoma de Barcelona |
| Repository: | Dipòsit Digital de Documents de la UAB |
| Language: | English |
| OAI Identifier: | oai:ddd.uab.cat:174267 |
| Online Access: | https://ddd.uab.cat/record/174267 https://dx.doi.org/urn:doi:10.1016/j.jcis.2014.10.005 |
| Access Level: | Open access |
| Keyword: | Arsenate removal Superparamagnetic iron oxide nanoparticles SPION 3-Mercaptopropionic acid |
| _version_ | 1878736014160166912 |
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| author | Morillo Martín, Diego |
| author2 | Faccini, Mirko Amantia, David Valiente, Manuel|||0000-0003-0766-9922 Pérez González, Gustavo|||0000-0001-9112-9042 Aubouy, Laurent |
| author2_role | author author author author author |
| author_browse | Amantia, David Aubouy, Laurent Faccini, Mirko Morillo Martín, Diego Pérez González, Gustavo|||0000-0001-9112-9042 Valiente, Manuel|||0000-0003-0766-9922 |
| author_facet | Morillo Martín, Diego Faccini, Mirko Amantia, David Valiente, Manuel|||0000-0003-0766-9922 Pérez González, Gustavo|||0000-0001-9112-9042 Aubouy, Laurent |
| author_role | author |
| collection | Dipòsit Digital de Documents de la UAB |
| description | In the present work, superparamagnetic iron oxide nanoparticles (SPION) surface-coated with 3-mercaptopropanoic acid (3-MPA) were prepared and their feasibility for the removal of arsenate from dilute aqueous solutions was demonstrated. The synthesized 3-MPA-coated SPION was characterized using transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infra-red spectrometry (FTIR). Separation efficiency of the coated nanoparticles and the equilibrium isotherm of arsenate adsorption were investigated. The obtained results reveal the arsenate adsorption to be highly pH-dependent, and the maximum adsorption was attained in less than 60 min. The resulting increase of 3-MPA-coated SPION adsorption capacity to twice the adsorption capacity of SPION alone under the same conditions is attributed to the increase of active adsorption sites. An adsorption reaction is proposed. On the other hand, efficient recovery of arsenate from the loaded nanoparticles was achieved using nitric acid (HNO3) solution, which also provides a concentration over the original arsenate solution. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_87435a4c9aa23dfd5ec2b8b220e9eefa |
| institution | Universitat Autònoma de Barcelona |
| instname_str | Universitat Autònoma de Barcelona |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ddd.uab.cat:174267 |
| publishDate | 2015 |
| publishDateSort | 2015 |
| reponame_str | Dipòsit Digital de Documents de la UAB |
| spelling | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles Morillo Martín, Diego Faccini, Mirko Amantia, David Valiente, Manuel|||0000-0003-0766-9922 Pérez González, Gustavo|||0000-0001-9112-9042 Aubouy, Laurent Arsenate removal Superparamagnetic iron oxide nanoparticles SPION 3-Mercaptopropionic acid In the present work, superparamagnetic iron oxide nanoparticles (SPION) surface-coated with 3-mercaptopropanoic acid (3-MPA) were prepared and their feasibility for the removal of arsenate from dilute aqueous solutions was demonstrated. The synthesized 3-MPA-coated SPION was characterized using transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infra-red spectrometry (FTIR). Separation efficiency of the coated nanoparticles and the equilibrium isotherm of arsenate adsorption were investigated. The obtained results reveal the arsenate adsorption to be highly pH-dependent, and the maximum adsorption was attained in less than 60 min. The resulting increase of 3-MPA-coated SPION adsorption capacity to twice the adsorption capacity of SPION alone under the same conditions is attributed to the increase of active adsorption sites. An adsorption reaction is proposed. On the other hand, efficient recovery of arsenate from the loaded nanoparticles was achieved using nitric acid (HNO3) solution, which also provides a concentration over the original arsenate solution. https://ddd.uab.cat/record/174267 https://dx.doi.org/urn:doi:10.1016/j.jcis.2014.10.005 |
| spellingShingle | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles Morillo Martín, Diego Arsenate removal Superparamagnetic iron oxide nanoparticles SPION 3-Mercaptopropionic acid |
| title | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| title_full | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| title_fullStr | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| title_full_unstemmed | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| title_short | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| title_sort | Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles |
| topic | Arsenate removal Superparamagnetic iron oxide nanoparticles SPION 3-Mercaptopropionic acid |
| topic_facet | Arsenate removal Superparamagnetic iron oxide nanoparticles SPION 3-Mercaptopropionic acid |
| url | https://ddd.uab.cat/record/174267 https://dx.doi.org/urn:doi:10.1016/j.jcis.2014.10.005 |