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• W1981902048 abstract "Dodecylsulfate- and dodecyl benzene sulfonate-hydrotalcites were prepared by calcination-rehydratation method. The surfactants intercalation in the interlayer space of hydrotalcite were checked by PXRD and FTIR spectroscopy where the resulting materials were found to be similar to those reported in the literature and were used to remove a basic dye (safranine) from aqueous solutions. The sorption kinetics data fitted the pseudo second order model. The isotherms were established and the parameters calculated. The sorption data fitted the Langmuir model with good values of the determination coefficient. The thermodynamic parameters calculated from Van't Hoff plots gave a low value of Delta G degrees (<-20 kJ mol(-1)) indicating a spontaneous physisorption process. Two regeneration cycles were processed by acetone extraction leading to the same removal capacity of the obtained materials as the original surfactant-intercalated hydrotalcites. The UV-vis spectra of the recovered extracts were similar to the spectrum of safranine, which means that the dye was recovered without any modification." @default.
• W1981902048 created "2016-06-24" @default.
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• W1981902048 date "2008-05-30" @default.
• W1981902048 modified "2023-09-27" @default.
• W1981902048 title "Basic dye removal from aqueous solutions by dodecylsulfate- and dodecyl benzene sulfonate-intercalated hydrotalcite" @default.
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• W1981902048 doi "https://doi.org/10.1016/j.jhazmat.2007.09.076" @default.
• W1981902048 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17997219" @default.
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