Details
| Original language | English |
|---|---|
| Pages (from-to) | 225-231 |
| Number of pages | 7 |
| Journal | Journal of Thermal Analysis and Calorimetry |
| Volume | 84 |
| Issue number | 1 |
| Publication status | Published - Apr 2006 |
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 50°C. 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.
Keywords
- Adsorption, Crystal violet, Erythrosin-B, Fast green, Isosteric enthalpy of adsorption, Montmorillonite, Organoclay
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Journal of Thermal Analysis and Calorimetry, Vol. 84, No. 1, 04.2006, p. 225-231.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Adsorption of fast green and erythrosin-B to montmorillonite modified with crystal violet
AU - Rytwo, G.
AU - Huterer-Harari, R.
AU - Dultz, S.
AU - Gonen, Y.
N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/4
Y1 - 2006/4
N2 - 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 50°C. 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.
AB - 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 50°C. 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.
KW - Adsorption
KW - Crystal violet
KW - Erythrosin-B
KW - Fast green
KW - Isosteric enthalpy of adsorption
KW - Montmorillonite
KW - Organoclay
UR - http://www.scopus.com/inward/record.url?scp=33645919312&partnerID=8YFLogxK
U2 - 10.1007/s10973-005-7187-5
DO - 10.1007/s10973-005-7187-5
M3 - Article
AN - SCOPUS:33645919312
VL - 84
SP - 225
EP - 231
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
SN - 1388-6150
IS - 1
ER -