17th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings, Volume II) (2024) [K-13-P, pp. 491-494]
AUTHOR(S) / АУТОР(И): Danijela Smiljanić 
, Aleksandra Daković , Milena Obradović , Marija Marković , Milica Ožegović , I. Dimitrijević and Željko Mravik
Download Full Pdf 
DOI: 10.46793/Phys.Chem24II.491S
ABSTRACT / САЖЕТАК:
In this study, two surfactants, primary amine dodecylamine (D) and di(hydrogenated tallow)dimethylammonium chloride known under the trade name Arquad®2HT-75 (A) were used to modify bentonite in amounts equivalent to 50% and 100% of bentonite`s cationic exchange capacity. For prepared composites static water contact angle and true density were maeasured. Obtained composites were tested as adsorbents for an anticonvulsant drug – carbamazepine (CARB). The results of the contact angle measurements confirmed that the modification of the starting material changed its surface properties from hydrophilic to hydrophobic. Additionally, the true density decreased as the surfactant content in the bentonite increased, which suggest that the surfactant was intercalated into the interlayers of the bentonite. Adsorption isotherms have shown that CARB adsorption increased with increasing of the initial drug concentration as well as with the increase of the amount of each surfactant in composites.
KEYWORDS / КЉУЧНЕ РЕЧИ:
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (grants No. 451-03-66/2024-03/200023 and 451-03-66/2024-03/200017), and from the Science Fund of the Republic of Serbia, grant No. 6706, acronym–ASPIRE.
REFERENCES / ЛИТЕРАТУРА:
- F. I. Hai, S. Yang, M.B. Asif, V. Sencadas, S. Shawkat, M. Sanderson-Smith, J. Gorman, Z.Q. Xu, K. Yamamoto, Water 10 (2018) 107.
- M. Obradović, A. Daković, D. Smiljanić, M. Ožegović, M. Marković, G.E. Rottinghaus, J. Krstić, Microporous Mesoporous Mater. 335 (2022) 111795.
- M. Obradović, A. Daković, D. Smiljanić, M. Marković, M. Ožegović, J. Krstić, N. Vuković, M. Milojević-Rakić, Processes 12 (2023) 96.
- A. Daković, S. Matijašević, G.E. Rottinghaus, D.R. Ledoux, P. Butkeraitis, Ž. Sekulić, Colloids Surf. B Biointerfaces 66 (2008) 20–25.
- M. A. Marković, A.S. Daković, G.E. Rottinghaus, M.D. Stojanović, V.T. Dondur, M.M. Kragović, Z.P. Gulišija, Hem. Ind. 70 (2016) 519–524.
- C. A. Schneider, W.S. Rasband, K.W. Eliceiri, Nat. Methods 9 (2012) 671–675.
- Z. Jovanović, A. Kalijadis, D. Vasiljević-Radović, M. Erić, M. Laušević, S. Mentus, Z. Laušević, Carbon 49 (2011) 3737–3746.
- K. Y. Law, J. Phys. Chem. Lett. 5 (2014) 686–688.
- S. Kaufhold, M. Plötze, M. Klinkenberg, R. Dohrmann, J. Porous Mater. 20 (2013) 191–208.
- S. Akbulut, Z.N. Kurt, S. Arasan, Y. Pekdemir, Sadhana 38 (2013) 317–329.