Data of the immersion enthalpy of activated carbon in benzene and cyclohexane. Influence of the content of surface oxygenated groups

Abstract

The objective of this data article is to show by calorimetric curves and the immersion enthalpies the differences between the interactions that occur when two activated carbons of different textural and chemical properties are put in contact with C6 compounds (an aromatic and a closed chain aliphatic: benzene and cyclohexane, respectively) in their pure state, and subsequently in mixtures thereof, with different molar composition. The greatest interaction occurs with the activated carbon that has the lower content of oxygen groups on the surface, both for the pure solvents, as for the mixtures; As for wetting liquids, there is a greater interaction with benzene (−∆Him: 94.98–106.40 J g−1) than with cyclohexane (−∆Him: 21.23–65.97 J g−1). The immersion enthalpy values for the different molar fractions are between −36.51 and −79.69 J g−1 for the oxidized sample, and between −50.43 and −85.59 J g−1 for the sample without chemical modification.

Competitive Adsorption of Caffeine and Diclofenac Sodium onto Biochars Derived from Fique Bagasse: An Immersion Calorimetry Study

“…As it has been shown, the immersion calorimetry enables an adequate correlation between the PSD calculated from the N 2 isotherms at −196.15 °C using the modeling method based on the QSDFT and the results when the adsorbent is immersed in molecules with different molecular diameter. This shows that it is possible to approach the adsorption capacities study of different compounds that are being studied in this work from the immersion calorimetry and correlate the enthalpies generated by the adsorbate–adsorbent interaction with the structure of the adsorbent and the molecule; immersion calorimetry is considered to be one of the most reliable techniques for the quantification of energies in this type of interaction . The values of the immersion enthalpies (Δ H imm ) of the bagasse biochars in benzene, water, CFN, and DCF in this study are presented in Table .…”

“…This shows that it is possible to approach the adsorption capacities study of different compounds that are being studied in this work from the immersion calorimetry and correlate the enthalpies generated by the adsorbate–adsorbent interaction with the structure of the adsorbent and the molecule; immersion calorimetry is considered to be one of the most reliable techniques for the quantification of energies in this type of interaction. 26 The values of the immersion enthalpies (Δ H imm ) of the bagasse biochars in benzene, water, CFN, and DCF in this study are presented in Table 1 .…”

Dataset of the immersion enthalpy of activated carbons chemically modified in methylparaben aqueous solution: Relation with adsorption

“…Around 100 mg of each activated carbon was weighed into a glass ampoule with a fragile peak and the immersion of the sample into the liquid was performed. The resulting thermal changes were registered until baseline is stabilized again and finally, an electric calibration was done [4], [5].…”