%0 Journal Article %A DU Duo-Qin %A QIN Li-Xiao %A TAN Yun-Fei %A TANG Fei %T Preparation and Characterization of MoO3-x Hexagonal Microrods as High-Efficiency Photocatalysts %D 2021 %R 10.19894/j.issn.1000-0518.190335 %J Chinese Journal of Applied Chemistry %P 92-98 %V 38 %N 1 %X Hexagonal MoO3-x microrods with rich surface oxygen vacancies were prepared from MoO3 using a facile and controllable one-step reduction method with ascorbic acid as the reducing agent. The as-prepared MoO3-x microrods exhibit much better photocatalytic activity than MoO3 for degrading Rhodamine B due to the narrower band gap and wider range of sunlight absorption. Moreover, the photocatalytic activity of MoO3-x increases significantly with an increase in surface oxygen vacancies. For the MoO2.799 sample with a Mo5+ content of 20.1%, it only takes 60 minutes to degrade 90% of Rhodamine B in a solution with an initial concentration of 10 mg/L. This study may present a new strategy to synthesize semiconductor photocatalysts. %U http://yyhx.ciac.jl.cn/EN/10.19894/j.issn.1000-0518.190335