文摘
A new kind of nanostructured photocatalyst, PbBiO2Cl is synthesized by a simple hydrothermal method. The proposed formation mechanism of PbBiO2Cl is carried out by analyzing the XRD patterns and SEM images of the products prepared under different conditions. The PbBiO2Cl nanostructure behaves as a truncated bipyramid, exposed with {002} and {103} facets. Moreover, theoretical calculation and absorption spectrum indicate the PbBiO2Cl shows strong absorption in the visible region with a band gap of 2.53 eV. The obtained PbBiO2Cl nanostructures exhibit significantly enhanced photocatalytic activity on degradation of methyl orange (MO) and 4-chlorophonel (4-CP). This work may offer a paradigm on designing and synthesizing visible photocatalyst exposed with reactive facets, which can be applied in many fields.