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Synthesis, characte...
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Chauhan, TanyaUniversity of Miskolc
(författare)
Synthesis, characterization, and challenges faced during the preparation of zirconium pillared clays
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:2a9a8f0e-c41c-430e-8057-dd433f4f8463
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https://lup.lub.lu.se/record/2a9a8f0e-c41c-430e-8057-dd433f4f8463URI
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https://doi.org/10.1016/j.arabjc.2022.103706DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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In this study, Zr-pillared montmorillonite clays (Zr-PILCs) were synthesized using two different precursor materials: raw montmorillonite (CM) and sodium ion-saturated montmorillonite (Na-CM) at different Zr/clay ratios (2.5, 5 and 10 mmol/g). To study the effect of Zr concentration and clay pre-treatment with NaCl on pillaring, the modified clay samples were characterized in detail using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), high-resolution transmission electron microscopy (HRTEM), scanning transmission electron microscopy and energy-dispersive X-ray spectroscopy (STEM-EDX). The XRD analysis showed the increase of basal spacing of Zr-PILCs prepared from both precursor materials: from 1.26 to 1.74 nm in the case of CM, and from 1.13 to 1.93 nm for Na-CM. Results from FT-IR revealed new bands ascribed to Zr-O bonds in the range of 400–500 cm−1 in Zr-pillared samples obtained from Na-CM at Zr/clay ratios of 2.5 and 5 mmol/g. The distribution and nature of Zr species in between the silicate layers were studied using STEM-EDX and HAADF imaging. They were found to be separated by a distance of 1.5–3 nm and their thickness lies in the range of 1–2 nm. Pillared clays prepared from pre-treatment with NaCl were more thermally stable at higher temperatures.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Udayakumar, MahithaUniversity of Miskolc
(författare)
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Ahmed Shehab, MohammedUniversity of Miskolc
(författare)
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Kristály, FerencUniversity of Miskolc
(författare)
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Katalin Leskó, AnettUniversity of Miskolc
(författare)
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Ek, MartinLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ma6528ek
(författare)
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Wahlqvist, DavidLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)da5423wa
(författare)
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Tóth, PálUniversity of Miskolc
(författare)
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Hernadi, KlaraUniversity of Miskolc
(författare)
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Németh, ZoltánUniversity of Miskolc
(författare)
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University of MiskolcNanoLund: Centre for Nanoscience
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Arabian Journal of Chemistry: Elsevier BV15:41878-5352
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Chauhan, Tanya
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Udayakumar, Mahi ...
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Ahmed Shehab, Mo ...
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Kristály, Ferenc
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Katalin Leskó, A ...
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Ek, Martin
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visa fler...
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Wahlqvist, David
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Tóth, Pál
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Hernadi, Klara
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Németh, Zoltán
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och Nanoteknik
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