Chitosan–alunite composite: An effective dye remover with high sorption, regeneration and application potential

•CAC has excellent sorption potential for AR1 and RR2 dyes.•Sorption of dyes satisfactorily fitted by the Langmuir isotherm.•The sorption performance of CAC did not decrease for 20 consecutive cycles.•CAC showed good sorption yields for anionic dyes at real conditions. This study was undertaken to p...

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