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Sorption of methyl orange by chitosan gels having hydrophobic groups
Author(s) -
Seo Toshihiro,
Kanbara Takaki,
Iijima Toshiro
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070360614
Subject(s) - sorption , methyl orange , chitosan , langmuir , polymer chemistry , chemical engineering , sorptivity , chemistry , adsorption , materials science , organic chemistry , photocatalysis , porosity , engineering , catalysis
The equilibrium sorption of methyl orange by chitosan and its acyl (octanoyl, dodecanoyl, and octadecanoyl) derivatives was investigated. In general, a greater of substitution and a longer chain length increase the sorption of the dye; however, there are optimum degrees of substitution and chain length to enhance the sorptivity. The sorption isotherms were interpreted by means of a dual mechanism which comprises partition and Langmuir sorption modes.