Abstract
Adsorption of methylene blue from aqueous solutionsonto unexpanded and expanded perlite samples activatedby H2SO4 and NaCl solutions has beeninvestigated, to assess the possibility of usingperlite for removing cationic dyes from aqueoussolutions. The effects of pH and temperature of dyesolution on the adsorption capacities have beenevaluated. The experimental data were correlatedreasonably well by the Langmuir adsorption isothermand the isotherm parameters (Q m and K) have beencalculated. The removal efficiency (P) anddimensionless separation factor (R) have shown thatperlite can be used for removal of methylene blue fromaqueous solutions, but unexpanded perlite is more effective.
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Doğan, M., Alkan, M. & Onganer, Y. Adsorption of Methylene Blue from Aqueous Solution onto Perlite. Water, Air, & Soil Pollution 120, 229–248 (2000). https://doi.org/10.1023/A:1005297724304
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DOI: https://doi.org/10.1023/A:1005297724304