Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 84: Issue 1
Adsorption of fast green and erythrosin-B to montmorillonite modified with crystal violet
Authors:
G. RytwoMIGAL, Galilee Technological Center Kiryat Shmona Israel Kiryat Shmona Israel

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R. Huterer-HarariTel Hai Academic College, Biotechnology and Environmental Sciences Department Upper Galilee Israel 12210 Upper Galilee Israel 12210

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S. DultzUniversity of Hannover Institute of Soil Science Hannover Germany 30419 Herrenhäuser Str. 2 Hannover Germany 30419 Herrenhäuser Str. 2

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Y. GonenTel Hai Academic College, Biotechnology and Environmental Sciences Department Upper Galilee Israel 12210 Upper Galilee Israel 12210

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Pages:
225–231
Online Publication Date:
14 Apr 2006
Publication Date:
14 Apr 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-7187-5
Keywords:
adsorption; crystal violet; erythrosin-B; fast green; isosteric enthalpy of adsorption; montmorillonite; organoclay
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Abstract  

Adsorption of erythrosin-B (EB) and fast green (FG) to a non-charged organosmectite based on crystal violet adsorbed up to 100% of the cation exchange capacity (CEC) was tested. Adsorption isotherms of EB and FG were prepared at 3, 24 and 50C. All isotherms are of H-type reaching loads of approximately up to 20% of the original CEC of the crude montmorillonite (up to 0.15 and 0.10 mol dye kg–1 clay for EB and FG, respectively). Adsorption decreases with temperature, indicating an exothermic process. Enthalpy was evaluated using van’t Hoff equation, yielding approximately –20 kJ mol–1 for both dyes.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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