期刊
ORIENTAL JOURNAL OF CHEMISTRY
卷 33, 期 3, 页码 1111-1119出版社
ORIENTAL SCIENTIFIC PUBL CO
DOI: 10.13005/ojc/330307
关键词
Biosorption; Aleurites moluccana; Chromium; Kinetics; Carbon-chitosan composite; Epichlorohydrin
资金
- UP System Enhanced Creative Work and Research Grant [ECWRG-2015-2-021]
Batch adsorption of toxic Cr(VI) ion from an aqueous solution using lumbang (Aleurites moluccana) activated carbon-chitosan composite crosslinked with epichlorohydrin as an adsorbent was investigated. The adsorption experiments were performed at varying pH, agitation time, initial Cr(VI) ion concentration, temperature, and adsorbent dose. At an initial concentration of 60 ppm Cr(VI), the maximum adsorption was observed at pH 3, adsorbent dose of 3 g/L, contact time of 75 min, and temperature of 30 degrees C. Analysis of the experimental data using different kinetic models revealed that the biosorption phenomenon behaved under a pseudo second-order rate mechanism.
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