Synthesis and photocatalytic property of lead molybdate dendrites with exposed (0Â 0Â 1) facet

► PbMoO4 dendritic crystals are synthesized by the composite molten salt method for the first time. ► The dendritic plane is exposed on (0 0 1) facet. ► Well recyclability with a stable catalytic activity is found compared with P25 and TiO2 nanoparticles. ► Multi-atomic centers on (0 0 1) facet are the origin of active sites for hydrophilicity and adsorption of O2.