One-dimensional BiPO4 nanorods and two-dimensional BiOCl lamellae:: Fast low-temperature sonochemical synthesis, characterization, and growth mechanism

Regular BiPO4 nanorods, for the first time, and BiOCI lamellae have been successfully synthesized via a facile sonochemical method in a surfactant/ligand-free system under ambient air. The as-prepared products are characterized by XRD, TEM, SAED, FE-SEM, HRTEM, and Raman spectroscopy, The effects of pH and ultrasound irradiation on the phase and morphology of the products are studied and the sonochemical formation mechanisms of 1 D and 2D structures are discussed. TEM data from samples made after different reaction times suggest an ultrasound-induced nucleation and an oriented-attachment growth mechanism.