Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1964
Title: Characterization of Sr2+ uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT
Authors: Shahwan, Talal
Erten, Hasan N.
Keywords: Kaolinite
Magnesite
Sr2+
Issue Date: 2005
Publisher: Walter De Gruyter Gmbh
Source: Shahwan, T., and Erten, H.N. (2005). Characterization of Sr2+ uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT. Radiochimica Acta, 93(4), 225-232. doi:10.1524/ract.93.4.225.64066
Abstract: The sorption behavior of Sr2+ ions on natural minerals rich in kaolinite and magnesite was studied using SEM/EDS, XPS, XRPD, AAS/AES and DRIFT techniques. Quantitative analysis of the XPS data shows that magnesite is more effective in Sr2+ uptake than kaolinite. DRIFT spectra and XRPD patterns indicate that the structures of both minerals were not affected upon Sr2+ sorption. Intercalation of DMSO in kaolinite lamellae aiming at increasing the interlayer space did not significantly enhance the sorption capacity of the clay towards Sr2+ probably due to the lack of a negative charge on the accessible sites. EDS mapping indicated that while the sorbed Sr is equally distributed on surface of natural kaolinite, it was associated - to a larger extent - with the regions richer in Mg in the case of natural magnesite. Comparing the uptake mechanisms of natural magnesite with that of pure MgCO3, it was seen that while natural magnesite sorbed Sr2+ mainly through an ion exchange type mechanism, the formation of SrCO3 coprecipitate was detected on the surface of the MgCO 3 at higher loadings.
URI: https://doi.org/10.1524/ract.93.4.225.64066
http://hdl.handle.net/11147/1964
ISSN: 0033-8230
0033-8230
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
1964.pdfMakale632.97 kBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

26
checked on Feb 16, 2024

WEB OF SCIENCETM
Citations

24
checked on Jan 19, 2024

Page view(s)

140
checked on Feb 26, 2024

Download(s)

222
checked on Feb 26, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.