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Title	Cationic dialdehyde cellulose microfibers for efficient removal of eriochrome black T from aqueous solution
ID_Doc	7400
Authors	Gomes, AS; Leal, MVG; Tolosa, GR; Cabrera, FC; Dognani, G; Job, AE
Title	Cationic dialdehyde cellulose microfibers for efficient removal of eriochrome black T from aqueous solution
Year	2023
Published
Abstract	Materials based on cellulose have been widely used as a decontaminant agent of wastewater. However, it can not be found in the literature any application of the cationic dialdehyde cellulose (cDAC) in anionic dye removal. Therefore, this study aims a circular economy concept using sugarcane bagasse to obtain a functionalized cel-lulose by oxidation and cationization. cDAC was characterized by SEM, FT-IR, oxidation degree, and DSC. Adsorption capacity was evaluated by pH, kinetic, concentration effect, strength ionic tests, and recycling. The kinetic followed Elovich model (R2 = 0.92605 for EBT = 100 mg/L) and non-linear Langmuir model (R2 = 0.94542), which resulted in a maximum adsorption capacity of 563.30 mg/g. The cellulose adsorbent reached an efficient recyclability of 4 cycles. Thus, this work presents a potential material to become a new, clean, low-cost, recyclable, and environmentally friendly alternative for effluent decontamination-containing dyes.
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