Effect of Cupric Salts (Cu (NO 3 ) 2 , CuSO 4 , Cu(CH 3 COO) 2 ) on Cu 2 (OH)PO 4 Morphology for Photocatalytic Degradation of 2,4-dichlorophenol under Near-infrared light irradiation

摘要

Cu 2 (OH)PO 4 microstructures were synthesized by the hydrothermal method using three different types cupric salts (Cu (NO 3 ) 2 , CuSO 4 , Cu(CH 3 COO) 2 ) as raw materials. The X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible-NIR absorption spectra were used to characterize the as-obtained products. The different anions (SO 4 2- , CH 3 COO - , NO 3- ) have different shapes and polarities, which can generate different interactions in reaction bath, induced the difference of structure and morphology of the prepared Cu 2 (OH)PO 4 . The Cu 2 (OH)PO 4 microstructures prepared form Cu(NO 3 ) 2 a?￠3H 2 O showed the best photocatalytic activity induced by near-infrared light to degrade 2,4-dichlorophenol (2,4-DCP) solution. Our work suggests that the active morphological surfaces as well as different coordination environments for the metal ions has an important influence on the photocatalytic performance of Cu 2 (OH)PO 4 microstructure.