Preparation and Photocatalytic Preoperty of Cu11O2 (VO4)6 Photocatalyst by Sol-Gel Method
Cu11O2 (VO4)6 powders have been synthesized by complexing Sol-Gel method using citric acid as chelate, calcined at different temperature without using any template. Techniques of X-ray diffraction (XRD) and scanning electron microscope (SEM) have been employed to characterize the as-synthesized materials. The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange (MO) solution under UV-light. It revealed that temperature values can influence significantly on the morphologies and structures of the products.It also found that the sample prepared with the molar ratio of citric acid to metal inons be 2:1, pH=7 and calcinated under 500°C for 4 hours was pure triclinic Cu11O2 (VO4)6 phase.In this conditions, the sample had highest photocatalytic activity with the photodegradation rate was about 78.9% or so in 60min under 20W ultraviolet lamp.
Qunjie Xu, Honghua Ge and Junxi Zhang
M. Wang et al., "Preparation and Photocatalytic Preoperty of Cu11O2 (VO4)6 Photocatalyst by Sol-Gel Method", Advanced Materials Research, Vols. 361-363, pp. 1598-1601, 2012