Possibility of application of naphthalene as carbon pyrolysate to obtain mineral-carbon sorbents
Dariusz Szychowski , Barbara Pacewska
AbstractPhysicochemical properties of mineral-carbon sorbents obtained by thermal decomposition of a mixture of aluminum hydroxide or alumina and naphthalene were investigated. Depending on the amount of pre-filled organic substance (naphthalene), sorption capacity, degree of porosity, surface character (hydrophilic–hydrophobic properties) and mesopores surface were tested. Properties of the obtained sorbents were tested by adsorption methods such as low-temperature nitrogen adsorption, adsorption of benzene vapors and thermal analysis methods (TG, DTG). Thermoporosimetric tests were also performed using DSC calorimeter. Investigations of water freezing and melting were carried out in the temperature range from − 40 to + 20 °C. When analyzing the curves of the distribution pore volume with respect to the effective radii for benzene vapors adsorption, it was found that for samples obtained using aluminum hydroxide as a mineral matrix and for aluminum hydroxide itself, the monodispersive distribution of mesopores volume was observed. The above observations were confirmed on the basis of thermoporosimetric tests. Only in the case of pure aluminum hydroxide, different results were obtained.
|Journal series||Journal of Thermal Analysis and Calorimetry, ISSN 1388-6150, e-ISSN 1588-2926|
|Score||= 70.0, 15-01-2020, ArticleFromJournal|
|Publication indicators||: 2018 = 1.063; : 2018 = 2.471 (2) - 2018=2.084 (5)|
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