Adsorption enthalpy and adsorption isotherm of tetradecylpyridinium bromide on Na-montmorillonite

Journal Article · Fri Jan 31 23:00:00 EST 1997 · Journal of Colloid and Interface Science

DOI:https://doi.org/10.1006/jcis.1996.4634· OSTI ID:438902

Chen, G; Song, X; Zhao, Y; Han, B; Yan, H ^[1]

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1. Academia Sinica, Beijing (China). Inst. of Chemistry

The adsorption enthalpy and the adsorption isotherm of tetradecylpyridinium bromide (TPB) onto a Na-montmorillonite suspension and the dilution enthalpy of the TPB solution have been determined at 298.15 K. The dilution process is endothermic and the adsorption process is exothermic. For ion exchange adsorption, the interaction between TP{sup +} and the montmorillonite because the cumulative adsorption enthalpy increases dramatically with adsorption amount. For molecular adsorption, however, the interaction between TPB and the clay is much weaker.

• OSTI ID: 438902
• Journal Information: Journal of Colloid and Interface Science, Journal Name: Journal of Colloid and Interface Science Journal Issue: 1 Vol. 186; ISSN 0021-9797; ISSN JCISA5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
ADSORPTION HEAT
ADSORPTION ISOTHERMS
ENHANCED RECOVERY
ENVIRONMENTAL TRANSPORT
MONTMORILLONITE
SOLUTION HEAT
SORPTIVE PROPERTIES
SURFACTANTS