Kinetics of the exchange of water absorbed in silica hydrogel with ethanol: Modelling by Brouers and Sotolongo–Costa fractal kinetics Scientific paper

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Borivoj Adnađević
https://orcid.org/0000-0003-3322-8506
Nebojša Cvetković
https://orcid.org/0000-0003-3302-5362
Jelena Jovanović
https://orcid.org/0000-0002-3285-2289

Abstract

Isothermal kinetics of the exchange of absorbed water in a silica hyd­ro­gel (SH) with ethanol was examined. The isothermal kinetic curves of abs­orbed water exchange with ethanol were measured at the temperatures: = 297, 306 and 316 K. The rate of the exchange was analysed as a function of time. The possibility of mathematical description of the kinetics of exchange by the Brouers and Sotolongo–Costa’s (BS) fractal’s kinetics model was exam­ined. Parameter values (n, τ, β) of the model and their changes with tempe­ra­ture were calculated. By applying the method of Ozao, it was determined that the rate limiting step of the process of exchange was the rate of exchange of the absorbed water with ethanol. Values of the fractal dimension of the SH–ethanol interphase were calculated. The dependences of the effective time-dependent rate coefficient, activation energy and pre-exponential factor on time and deg­ree of exchange were calculated and discussed. The proposed model of the mechanism of the exchange of absorbed water with ethanol was discussed.

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How to Cite
[1]
B. Adnađević, N. Cvetković, and J. Jovanović, “Kinetics of the exchange of water absorbed in silica hydrogel with ethanol: Modelling by Brouers and Sotolongo–Costa fractal kinetics: Scientific paper”, J. Serb. Chem. Soc., vol. 86, no. 9, pp. 819-830, Aug. 2021.
Section
Physical Chemistry

References

A. C. Pierre, G. M. Pajonk, Chem. Rev. 102 (2002) 4243 (http://dx.doi.org/10.1021/cr0101306)

A. Parvathy Rao, A. Venkateswara Rao, J. Mater. Sci. 45 (2010) 51 (http://dx.doi.org/10.1007/s10853-009-3888-7)

V. G. Parale, K.-Y. Lee, H.-H. Park, J. Korean Ceram. Soc. 54 (2017) 184 (http://dx.doi.org/10.4191/kcers.2017.54.3.12)

E. Moretti, F. Merli, E. Cuce, C. Buratti, Energy Procedia 111 (2017) 472 (http://dx.doi.org/10.1016/j.egypro.2017.03.209)

J. E. Amonette, J. Matyáš, Microporous Mesoporous Mater. 250 (2017) 100 (http://dx.doi.org/10.1016/j.micromeso.2017.04.055)

A. Venkateswara Rao, N. D. Hegde, H. Hirashima, J. Colloid Interface Sci. 305 (2007) 124 (http://dx.doi.org/10.1016/j.jcis.2006.09.025)

S. M. Jones, J. Sol-Gel Sci. Technol. 40 (2006) 351 (http://dx.doi.org/10.1007/s10971-006-7762-7)

C. A. McCarthy, R. J. Ahern, K. J. Devine, A. M. Crean, Mol. Pharm. 15 (2018) 141 (http://dx.doi.org/10.1021/acs.molpharmaceut.7b00778)

C.-T. Wang, C.-L. Wu, I.-C. Chen, Y.-H. Huang, Sensors Actuators, B 107 (2005) 402 (http://dx.doi.org/10.1016/j.snb.2004.10.034)

J. L. Gurav, I.-K. Jung, H.-H. Park, E. S. Kang, D. Y. Nadargi, J. Nanomater. 2010 (2010) 1 (http://dx.doi.org/10.1155/2010/409310)

A. Parvathy Rao, A. Venkateswara Rao, G. M. Pajonk, P. M. Shewale, J. Mater. Sci. 42 (2007) 8418 (http://dx.doi.org/10.1007/s10853-007-1788-2)

J. Šesták, J. Therm. Anal. Calorim. 110 (2012) 5 (http://dx.doi.org/10.1007/s10973-011-2089-1)

S. Gaspard, S. Altenor, N. Passe-Coutrin, A. Ouensanga, F. Brouers, Water Res. 40 (2006) 3467 (http://dx.doi.org/10.1016/j.watres.2006.07.018)

F. Brouers, O. Sotolongo-Costa, Physica, A 368 (2006) 165 (http://dx.doi.org/10.1016/j.physa.2005.12.062)

F. Brouers, J. Mod. Phys. 05 (2014) 1594 (http://dx.doi.org/10.4236/jmp.2014.516160)

R. Ozao, M. Ochiai, J. Ceram. Soc. Japan 101 (1993) 263 (http://dx.doi.org/10.2109/jcersj.101.263)

P. Šimon, O. Zmeškal, J. Šesták, in Thermal analysis of Micro, Nano- and Non-Crys-talline Materials. Hot Topics in Thermal Analysis and Calorimetry, Vol. 9, J. Šesták., P. Šimon, Eds., Springer, Dordrecht, 2012, pp. 247–255 (http://dx.doi.org/10.1007/978-90-481-3150-1_12)

W. Siebrand, T. A. Wildman, Acc. Chem. Res. 19 (1986) 238 (http://dx.doi.org/10.1021/ar00128a002)

A. Plonka, A. Paszkiewicz, J. Chem. Phys. 96 (1992) 1128 (http://dx.doi.org/10.1063/1.462199)

R. Grima, S. Schnell, Biophys. Chem. 124 (2006) 1 (http://dx.doi.org/10.1016/j.bpc.2006.04.019).