Adsorption of anionic and non-ionic surfactants on a cellulosic surface
DSpace at IIT Bombay
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Title |
Adsorption of anionic and non-ionic surfactants on a cellulosic surface
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Creator |
PARIA, SANTANU
MANOHAR, C KHILAR, KC |
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Subject |
adsorption isotherm
sodium compounds spectrophotometry titration cellulose |
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Description |
The adsorption of an anionic surfactant, sodium dodecylbenzenesulfonate (NaDBS) and a non-ionic surfactant, Triton X-100 (TX-100) has been studied on cellulose surfaces with and without the presence of electrolytes by using both spectrophotometric and titrametric methods. The adsorption isotherms are identified with four different regimes for both surfactants. Two important phenomena reflected in the adsorption isotherms are the steep increase in adsorption due to hemimicellisation below the critical micelle concentration (CMC) and the decrease in the adsorption above the CMC. Adsorption of anionic surfactant, NaDBS gets enhanced in presence of monovalent (K+) or bivalent (Ca2+) cation while for non-ionic surfactant, TX-100 there is no such enhancement in adsorption in presence of salt.
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Publisher |
Elseiver
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Date |
2009-02-17T12:03:08Z
2011-11-25T17:02:55Z 2011-12-26T13:05:58Z 2011-12-27T05:53:55Z 2009-02-17T12:03:08Z 2011-11-25T17:02:55Z 2011-12-26T13:05:58Z 2011-12-27T05:53:55Z 2005 |
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Type |
Article
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Identifier |
Colloids and Surfaces A: Physicochemical and Engineering Aspects 252(2-3), 221-229
0927-7757 http://dx.doi.org/10.1016/j.colsurfa.2004.09.022 http://hdl.handle.net/10054/665 http://dspace.library.iitb.ac.in/xmlui/handle/10054/665 |
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Language |
en
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