Chen G, Song X, Zhao Y, Han B, Yan H
Institute of Chemistry, Academia Sinica, Beijing, 100080, China
J Colloid Interface Sci. 1997 Feb 1;186(1):206-8. doi: 10.1006/jcis.1996.4634.
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+ and the montmorillonite is much stronger than that between Na+ 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.
在298.15 K下测定了溴化十四烷基吡啶（TPB）在钠蒙脱石悬浮液上的吸附焓和吸附等温线以及TPB溶液的稀释焓。稀释过程是吸热的，吸附过程是放热的。对于离子交换吸附，TP⁺与蒙脱石之间的相互作用比Na⁺与蒙脱石之间的相互作用强得多，因为累积吸附焓随吸附量急剧增加。然而，对于分子吸附，TPB与粘土之间的相互作用要弱得多。
