期刊
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
卷 13, 期 5, 页码 713-718出版社
SPRINGER
DOI: 10.1007/s10098-010-0343-z
关键词
Direct Red 23; Cationization; Sawdust; Sandene; Adsorption isotherm
Sawdust, SD, was reacted with Sandene 850 (polyamine) in alkaline medium to yield cationized sawdust. The latter was characterized through its Fourier Transform Infrared (FT-IR) spectra and nitrogen content. Thus, obtained cationized sawdust was harnessed for removal of Direct Red 23 from aqueous solutions. Adsorption studies were performed under different agitation time, adsorbent and adsorbate concentrations and the onset of this on the adsorption capacity of Direct Red 23 onto cationized sawdust. Langmuir and Freundlich models were applied in the adsorption studies. The study showed that the cationized sawdust is effectively used in adsorption of Direct Red 23 from aqueous solutions.
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