Abstract
Acetic acid-modified powdered and encapsulated cellulose-based modified citrus peels CPAA and CPAA-A were easily prepared and characterized using FTIR, DRX, BET, SEM, pHPZC and Boehm analysis, to investigate the single and binary adsorption of MB and CV dyes.Many parameters that affect adsorption phenomena were investigated: pH (3–11) of initial dyes solution, contact time, and initial dyes concentration (25–300 mg·L−1).Kinetics modeling shows that the adsorption of MB and CV onto adsorbents was well described by pseudo-first-order. CV and MB adsorption capacities on CPAA-A were respectively 881.36 and 923.07 mg·g−1 found by Langmuir model showing homogeneous and monolayer adsorption of MB and CV. The removal of dyes in the binary system shows that adsorption was slightly or nether affected by the simultaneous presence of the dyes in solution. CPAA-A and CPAA show very high adsorption capacities proving to be very useful in the field of water treatment in single or binary systems.
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