CdS nanocrystals/TiO2/crosslinked chitosan composite: Facile preparation, characterization and adsorption-photocatalytic properties

► CdS nanocrystals were deposited on TiO2/crosslinked chitosan composite. ► CdS/TiO2/CS NCFs showed enhanced photocatalytic activity. ► The photocatalytic decolorization reached 99.1% by CdS/TiO2/CS NCFs ► Photocatalytic decolorization of methyl orange by CdS/TiO2/CS NCFs obeyed L-H mechanism.