Effective adsorption of sodium dodecylsulfate (SDS) by hydrocalumite (CaAl-LDH-Cl) induced by self-dissolution and re-precipitation mechanism

► We prepared the CaAl-LDH-Cl materials synthesized by hydrating freshly prepared tricalcium aluminate (C3A) in CaCl2 solution. ► The modified materials were characterized by XRD, FTIR, XPS, and SEM. ► We showed the distances and morphologies of resulting materials reacted with different concentration of SDS, respectively. ► We concluded the mechanism of the CaAl-LDH-Cl reacted with different concentration of SDS.