Abstract
The equilibrium sorption of CI Direct Blue 1, as a model anionic adsorbate, from aqueous solution on cotton fabric was experimentally studied. The equilibrium sorption data were employed to test the performance of a proposed nonlinear sorption model in describing the sorption behavior of anionic adsorbates on cellulosic substrates. The analysis of data based on the nonlinear least-squares curve fitting showed excellent correlation against experimental values as indicated by a high coefficient of determination (R 2). The V and −Δμ° parameters were determined based on the nonlinear model and employed to represent the internal accessible volume of cotton to CI Direct Blue 1 and the standard affinity of sorption. It was shown that variations in temperature and concentration of electrolyte (e.g. NaCl) in the sorption system result in slight variations in V. The findings extend the scope of the previous study and indicate that the nonlinear sorption model can be used to accurately determine the thermodynamic properties of a sorption system, such as the affinity (−Δμ°), enthalpy (ΔH°), and entropy (ΔS°), for anionic adsorbates on cellulosic substrates.
References
AATCC (2010) AATCC Technical Manual, vol 85. American Association of Textile Chemists and Colorists, Research Triangle Park, NC, USA
Agnihotri VG, Giles CH (1972) Cellulose-dye adsorption process: study by monolayer method. J Chem Soc Perkin Trans 2(15):2241–2246
Aspland JR (1991) Chapter 2: Direct dyes and their application. Text Chem Color 23(11):41–45
Bates DM, Watts DG (1988) Nonlinear regression analysis and its applications. Wiley, New York
Carrillo F, Lis MJ, Valldeperas J (2002) Sorption isotherms and behaviour of direct dyes on lyocell fibres. Dyes Pigment 53:129–136
Daruwalla EH, Kangle PJ, Nabar GM (1961) Adsorption of direct cotton dyes by chemically modified celluloses. Text Res J 31(8):712–721
Freundlich H (1926) Colloid and capillary chemistry. ED Dutton and Co, New York, p 754
Hanson J, Neale SM, Stringfellow WA (1935) Absorption of dyestuffs by cellulose. Part VI. The effect of modification of the cellulose, and a theory of the electrolyte effect. Trans Faraday Soc 31:1718–1730
Holmes FH (1958) The absorption of Chrysophenine G by cotton: a test of quantitative theories of direct dyeing. Trans Faraday Soc 54(8):1172–1178
Holmes FH, Standing HA (1945) The dyeing of cellulose with direct dyes. 4. The electrolytic conductance of aqueous solutions of direct dyes. Trans Faraday Soc 41(8-9):568–574
Ibbett RN, Phillips DAS, Kaenthong S (2006) Evaluation of a dye isotherm method for characterisation of the wet-state structure and properties of lyocell fibre. Dyes Pigment 71:168–177
Ibbett RN, Phillips DAS, Kaenthong S (2007) A dye-adsorption and water NMR-relaxation study of the effect of resin cross-linking on the porosity characteristics of lyocell solvent-spun cellulosic fibre. Dyes Pigment 75:624–632
Ibe EC, Valko EI (1977) Absorption of direct dyes by crosslinked cellulose. 1. Equilibrium of dyeing. J Appl Polym Sci 21(2):371–384
Inglesby MK, Zeronian SH (1996) The accessibility of cellulose as determined by dye adsorption. Cellulose 3:165–181
Inglesby MK, Zeronian SH (2002) Direct dyes as molecular sensors to characterize cellulose substrates. Cellulose 9(1):19–29
Iyer SRS, Singh GS (1970) Studies on the aggregation of dyes in aqueous solutions. Colloid Polym Sci 242(1):1196–1200
Iyer SRS, Subramanian K (1980) The Influence of Electrolytes on the Adsorption of Chlorazol Sky Blue FF on Viscose Rayon Fibres at Different Temperatures. J Soc Dyers Colour 96(4):185–188
Marshall WJ, Peters RH (1947) The heats of reaction and affinities of direct dyes for cuprammonium rayon, viscose rayon, and cotton. J Soc Dyers Colour 63:446–461
McCleary HR (1953) Fundamentals of the dyeing of cellulosic fibers. Text Res J 23(10):673–682
Neale SM (1933) The modification of natural cotton cellulose by swelling and by degradation. Trans Faraday Soc 29:228–234
Neale SM, Stringfellow WA (1933) The absorption of dyestuffs by cellulose. Part I. The kinetics of the absorption of Sky Blue FF on viscose sheet, in the presence of various amounts of sodium chloride. Trans Faraday Soc 29:1167–1180
Peters RH, Vickerstaff T (1948) The adsorption of direct dyes on cellulose. Proc R Soc London Ser A 192:292–308
Porter JJ (1993) Interpretation of sorption isotherms for mixtures of direct dyes on cellulose. Text Chem Color 25(2):27–37
Porter JJ (2002) Dyeing equilibria: interaction of direct dyes with cellulose substrates. Color Technol 118:238–243
Porter JJ, Perkins WS (1970) A study of the thermodynamics of sorption of three direct dyes on cellophane film. Text Res J 40(1):81–88
Standing HA (1954) The direct dyeing of cellulose: a method for the analysis of equilibrium absorption data in terms of current quantitative theories. J Text Inst 45:T21–T29
Vickerstaff T (1954) Cellulose-dyeing equilibria with direct dyes. In: The physical chemistry of dyeing, 2 edn. Oliver and Boyd, London, p 97
Xu C, Shamey R (2012) Nonlinear modeling of equilibrium sorption of selected anionic adsorbates from aqueous solutions on cellulosic substrates. Part 1: Model development. Cellulose. doi:10.1007/s10570-012-9675-7
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xu, C., Shamey, R. Nonlinear modeling of equilibrium sorption of selected anionic adsorbates from aqueous solutions on cellulosic substrates: part 2: experimental validation. Cellulose 19, 627–633 (2012). https://doi.org/10.1007/s10570-012-9676-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10570-012-9676-6