RESUMO
Monoclinic and hexagonal LaPO4 nanorods were prepared through hydrothermal method without the assistance of additives. The products were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED). Monoclinic and hexagonal LaPO4 nanorods can be achieved by adjusting the hydrothermal temperature and the pH value. The photocatalytic activity of monoclinic and hexagonal LaPO4 nanorods on rhodamine B (RB) and Congo red (CR) under UV irradiation was investigated, respectively. Interestingly, the monoclinic and hexagonal phase shows different photocatalytic performance for the photodegradation of the organic RB and CR dye.
