Effects of ultrasonic irradiation on the synthesis, crystallization, thermal and dissolution behaviour of chloride-intercalated, co-precipitated CaFe-layered double hydroxide.

•Mapping the influence of ultrasound irradiation on co-precipitated CaFe-Cl−-LDHs.•Continuous irradiation resulted in elevated crystal thickness and anion incorporation capacity.•On pulsed irradiation, porosity was developed and the aggregate size was reduced.•Detailed thermal, dissolution and optical description of sonocrystallized LDHs was given.•The integrity of the interlayer structure was preserved up to 200 °C.