期刊
E-JOURNAL OF CHEMISTRY
卷 6, 期 4, 页码 949-954出版社
WWW PUBL PTE
DOI: 10.1155/2009/303194
关键词
Adsorption; Reactive dye; Palm kernel shell; Film-surface-pore diffusion
The rate of adsorption of two reactive dyes, Reactive Black 5 and Reactive Red E onto palm kernel shell-based activated carbon was studied. The experiment was carried out to investigate three models: film diffusion model, film-surface and film-pore diffusion models. The results showed that the external coefficients of mass transfer decreased with increasing of initial adsorbate concentration. In addition, it was found that the adsorption process was better described by using the two resistance models, i.e. film-surface diffusion.
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