期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：4
页码：1049-1059
出版社：University of Mohammed Premier Oujda
摘要：This review focuses on the ability of polyaniline (PANi) to adsorb two monoazo dyes: Red Drimarene CL-5B (RD) and Orange G (OG) in aqueous solution. A systematic study of various parameters (amount of support, contact time, initial concentration, temperature, pH, ionic strength), was performed. The results obtained show that the two dyes are adsorbed quickly enough for the first few minutes to achieve a discoloration yield greater than 97% after 30 min of contact adsorbate-adsorbent. The adsorption kinetic modeling of RD and OG shows a better fit to the model pseudo second order. The retention mechanism of identification was carried out by different models of adsorption isotherms. It shows that the adsorption of the dyes studied follows the Langmuir model. The maximum retained amounts of RD and OG respectively 118.45 mg.g -1 and 162.77 mg.g -1 .The values of thermodynamic parameters ΔG°, ΔH° and ΔS° indicate that the adsorption reactions are spontaneous and endothermic
