- citati u SCIndeksu: 0
- citati u CrossRef-u:0
- citati u Google Scholaru:[
 ]
- posete u poslednjih 30 dana:7
- preuzimanja u poslednjih 30 dana:4
|
|
|
2020, vol. 9, br. 2, str. 41-47
|
|
Termodinamička razmatranja sorpcije disperzne boje na poliestarska vlakna
Thermodynamic investigation of disperse dyes sorption on polyester fibers
aUniverzitet u Nišu, Srbija bUniversity of Tetovo, Faculty of Natural Sciences and Mathematics, Tetovo, North Macedonia cUniverzitet u Nišu, Tehnološki fakultet, Leskovac, Srbija dUniversity of Zagreb, Faculty of Textile Technology, Zagreb, Croatia
e-adresa: izida50@gmail.com
Projekat: The funds for the realization of this scientific work were provided by the Ministry of Education. Science and Technological Development of the Republic of Serbia.
Sažetak
U članku je predstavljena analiza termodinamike sorpcije tokom procesa bojenja sirovih poliestarskih vlakana disperznom bojom. Bojenje vlakana je izvršeno dis-kontinualno, šaržni proces, prema standardnoj proceduri uz variranje početne kon-centracija boje i temperature bojenja. Korišćeno je nekoliko usvojenih modela za izračunavanje termodinamičkih parametara kojima se definiše i pojašnjava proces sorpcije disperzne boje na poliestarsko vlakno. Utvrđena je visoka funkcionalnost promenljivih za izračunavanje osnovnih termodinamičkih parametara, čime je potvrđena validnost rezultata. Zavisno od načina izračunavanja, promena slobodne energije tokom bojenja poliestra, bila je negativna (-10 --40 kJ·mol -1), što odgovara spontanom i uglavnom fizičkom procesu sorpcije. Pozitivna vrednost za promenu entalpije tokom bojenja (1.1×10 -2 -2.9 ×10 1 kJ·mol -1), odražava endotermnu prirodu interakcija, a relativno manja brojčana vrednost karakteriše fenomen fizisorpcije. Pozitivna vrednost za promenu entropije (1.1×10 -4 -1.5 ×10 -1 kJ·mol -1 ·K -1) potvrđuje se da je u pitanju fizička sorpcija.
Abstract
The thermodynamics of sorption during the dyeing process of raw polyester fibers with disperse dye was studied in this article. Dyeing of fibers is carried out by a discontinuous batch process, according to standard procedures with varying of the initial dye concentration and the dyeing temperature. Several of the accepted models for calculation of thermodynamic parameters were used which define and clarify the sorption of disperse dyes on polyester fibers. High functionality of variables for the calculation of basic thermodynamic parameters was determined, which confirmed the validity of the results. Depending on the method of calculation , the change of free energy during the dyeing of the polyester was negative (-10-40 kJ·mol-1), which corresponds to the spontaneous and mainly the physical process of sorption. A positive value for the change in enthalpy during dyeing (1.1×10-2-2.9×10 1 kJ·mol-1) reflects the endothermic nature of the interactions, and a relatively lower value characterizes the physisorption phenomenon. A positive value for the change in entropy (1.1×10-4-1.5×10-1 kJ·mol-1 ·K-1) confirms that it is a physical sorption.
|
|
|
|
Reference
|
|
  
|
Alahabadi, A., Hosseini-Bandegharaei, A., Moussavi, G., Amin, B., Rastegar, A., Karimi-Sani, H., Fattahi, M., Miri, M. (2017) Comparing adsorption properties of NH 4 Cl-modified activated carbon towards chlortetracycline antibiotic with those of commercial activated carbon. Journal of Molecular Liquids, 232: 367-381
|
|
|
Anastopoulos, I.G.Z., Kyzas, G.Z. (2016) Are the thermodynamic parameters correctly estimated in liquid-phase adsorption phenomena?. Journal of Molecular Liquids, 218: 174-185
|
|
|
Blanco, S.P.D.M., Scheufele, F.B., Modenes, A.N., Espinoza-Quinones, F.R., Marin, P., Kroumov, A.D., Borba, C.E. (2017) Kinetic equilibrium and thermodynamic phenomenological modeling of reactive dye adsorption onto polymeric adsorbent. Chemical Engineering Journal, 307(1): 466-475
|
|
|
Doke, K.M., Khan, E.M. (2013) Adsorption thermodynamics to clean up wastewater: Critical review. Reviews in Environmental Science and Bio/Technology, 12(1): 25-44
|
|
|
Ferus-Comelo, M. (2015) A new method to measure the solubility of disperse dyes in water at high temperature. Coloration Technology, 131(4): 269-271
|
|
|
Ghosal, P.S., Gupta, A.K. (2015) An insight into thermodynamics of adsorptive removal of fluoride by calcined Ca-Al-(NO3) layered double hydroxide. RSC Advances, 5(128): 105889-105900
|
|
|
Ghosal, P.S., Gupta, A.K. (2017) Determination of thermodynamic parameters from Langmuir isotherm constant-revisited. Journal of Molecular Liquids, 225: 137-146
|
|
|
Mousa, A.A., Youssef, Y.A., Mohamed, W.S., Farouk, R., Giebel, E., Buchmeiser, M.R. (2017) Organoclays assisted VAT and disperse dyeing of poly(ethylene terephthalate) nanocomposite fabrics via melt spinning. Coloration Technology, 134(2): 126-134
|
|
|
Rodri'guez, A., Ovejero, G., Mestanza, M., Garci'a, J. (2010) Removal of dyes from wastewaters by adsorption on sepiolite and pansil. Industrial & Engineering Chemistry Research, 49(7): 3207-3216
|
|
|
Tran, H.N., You, S., Chao, H. (2016) Thermodynamic parameters of cadmium adsorption onto orange peel calculated from various methods: A comparison study. Journal of Environmental Chemical Engineering, 4(3): 2671-2682
|
|
|
Tran, H.N., You, S.J., Hosseini-Bandegharaei, A., Chao, H. (2017) Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solutions: A critical review. Water Research, 120: 88-116
|
|
|
|
|