화학공학소재연구정보센터
Separation and Purification Technology, Vol.200, 44-50, 2018
Construction of Ag3PO4/TiO2 nano-tube arrays photoelectrode and its enhanced visible light driven photocatalytic decomposition of diclofenac
This work shows results of our investigation on Ag3PO4/TiO2 NTAs photoelectrode photodegradation properties to diclofenac with visible light illumination. The composite photoelectrode has been synthesized by ultrasound precipitation strategy and characterized through scanning electrons microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). In addition, photoelectrocheznical and visible photocatalytic activity properties of as-prepared samples were investigated to prove the fact Compared with pure TiO2 NTAs, AS(3)PO(4)/TiO2 NTAs photoelectrode possesses the enhancement of light absorbance in the visible region and a lower recombination rate of photogenerated electron-hole pairs, so that it performed a better visible light photocatalytic property. Additionally, prepared Ag3PO4/TiO2 NTAs photoelectrode has well recyclability. On the basis of electrochemical, fluorescence spectra and photoluminescence, the photocatalytic performance enhancement mechanism for Ag3PO4/TiO2 NTAs was put forward.