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http://hdl.handle.net/10773/19168
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pinheiro, Paula C. | pt |
dc.contributor.author | Tavares, Daniela S. | pt |
dc.contributor.author | Daniel-da-Silva, Ana L. | pt |
dc.contributor.author | Lopes, Claudia B. | pt |
dc.contributor.author | Pereira, Eduarda | pt |
dc.contributor.author | Araujo, Joao P. | pt |
dc.contributor.author | Sousa, Celia T. | pt |
dc.contributor.author | Trindade, Tito | pt |
dc.date.accessioned | 2017-12-07T19:03:11Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 1944-8244 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19168 | - |
dc.description.abstract | This work reports the preparation of ferromagnetic nickel nanowires (NiNW) coated with dithiocarbamate-functionalized siliceous shells and its application for the uptake of aqueous Hg(II) ions by magnetic separation. NiNW with an average diameter and length of 35 nm and 5 mu m, respectively, were firstly prepared by Ni electrodeposition in an anodic aluminum oxide template. The NiNW surfaces were then coated with siliceous shells containing dithiocarbamate groups via a one-step procedure consisting in the alkaline hydrolytic co-condensation of tetraethoxysilane (TEOS) and a siloxydithio-carbamate precursor (SiDTC). A small amount of these new nanoadsorbents (2.5 mg.L-1) removed 99.8% of mercury ions from aqueous solutions with concentration 50 mu g.L-1 and in less than 24 h of contact time. This outstanding removal ability is attributed to the high affinity of the sulfur donor ligands to Hg(II) species combined with the high surface area-to-volume ratio of the NiNW. | pt |
dc.language.iso | eng | pt |
dc.publisher | AMER CHEMICAL SOC | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/120668/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132951/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F82010%2F2011/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | MAGNETIC NANOWIRES | pt |
dc.subject | REMOVAL | pt |
dc.subject | PARTICLES | pt |
dc.subject | NANOPARTICLES | pt |
dc.subject | NANOMATERIALS | pt |
dc.subject | REMEDIATION | pt |
dc.subject | ALUMINA | pt |
dc.subject | ARRAYS | pt |
dc.title | Ferromagnetic Sorbents Based on Nickel Nanowires for Efficient Uptake of Mercury from Water | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 8274 | pt |
degois.publication.issue | 11 | pt |
degois.publication.lastPage | 8280 | pt |
degois.publication.title | ACS APPLIED MATERIALS & INTERFACES | pt |
degois.publication.volume | 6 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1021/am5010865 | pt |
dc.identifier.doi | 10.1021/am5010865 | pt |
Appears in Collections: | CESAM - Artigos CICECO - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Ferromagnetic Sorbents Based on Nickel Nanowires for Efficient Uptake of Mercury from Water_10.1021am5010865.pdf | 4.44 MB | Adobe PDF |
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