ToF-SIMS depth profiling analysis of the uptake of Ba2+ and Co2+ ions by natural kaolinite clay

Simple item page
dc.citation.epage28en_US
dc.citation.issueNumber1en_US
dc.citation.spage23en_US
dc.citation.volumeNumber277en_US
dc.contributor.authorShahwan, T.en_US
dc.contributor.authorErten, H. N.en_US
dc.contributor.authorBlack, L.en_US
dc.contributor.authorAllen, G. C.en_US
dc.date.accessioned2016-02-08T10:26:12Z
dc.date.available2016-02-08T10:26:12Z
dc.date.issued2004en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractThe sorption behavior of Ba2+ and Co2+ ions on a natural clay sample rich in kaolinite was studied using time-of-flight secondary ion mass spectrometry (ToF-SIMS). Depth profiling at 10-Å steps was performed up to a 70-Å matrix depth of the clay prior to and following sorption. The results showed that Co2+ is sorbed in slightly larger quantities than Ba2+, with significant numbers of ions fixed on the outermost surface of the clay. Depletion of the ions K+, Mg 2+, and Ca2+ from the clay lattice was observed to accompany enrichment with Co2+ and Ba2+ ions. The data obtained using X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) indicated insignificant structural and morphological changes in the lattice of the clay upon sorption of both Ba2+ and Co2+ ions. Analysis using energy dispersive X-ray spectroscopy (EDS) showed that the average atomic percentage (±S.D.) of Ba and Co on kaolinite surface were 0.49±0.11 and 0.61±0.19, respectively, indicating a limited uptake capacity of natural kaolinite for both ions. © 2004 Elsevier Inc. All rights reserved.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:26:12Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2004en
dc.identifier.doi10.1016/j.jcis.2004.04.013en_US
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/11693/24235
dc.language.isoEnglishen_US
dc.publisherAcademic Pressen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.jcis.2004.04.013en_US
dc.source.titleJournal of Colloid and Interface Scienceen_US
dc.subjectBaen_US
dc.subjectCoen_US
dc.subjectDepth profilingen_US
dc.subjectKaoliniteen_US
dc.subjectSorptionen_US
dc.subjectToF-SIMSen_US
dc.titleToF-SIMS depth profiling analysis of the uptake of Ba2+ and Co2+ ions by natural kaolinite clayen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ToF–SIMS depth profiling analysis of the uptake of Ba2+ and Co2+ ions by natural kaolinite clay.pdf
Size:
378.45 KB
Format:
Adobe Portable Document Format
Description:
Full printable version
Download

Collections

Scholarly Publications - Chemistry