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介孔结构多酸掺杂-锐钛矿纳米晶Na₄W₁₀O₃₂/TiO₂的制备及其可见光光催化性能研究

Preparation and Visible-light Photocatalytic Properties of Polyoxometalate-doped Anatase Nanocrystal Na₄W₁₀O₃₂/TiO₂ with Mesoporous Structure

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【Author】 XU Yun-Ting 1,LI Li 2,YU Xiao-Dan 2,GUO Yi-Hang 2* (1. Lanzhou Institute of Geology,Chinese Academic of Sciences,Lanzhou 730000,China; 2. Faculty of Chemistry,Northeast Normal University,Changchun 130024,China)

【机构】中国科学院兰州地质研究所；东北师范大学化学学院；东北师范大学化学学院兰州730000；长春130024；长春130024；

【Abstract】 A simple and rapid process has been developed for the preparation of mesoporous anatase TiO 2 crystalline particles coupled by homogeneously dispersed Na 4W 10 O 32 at a lower temperature ( 200 ℃ ) by combining sol-gel and programmed temperature hydrothermal methods. The composite,Na 4W 10 O 32 /TiO 2,has a uniform mesopore distribution with the average pore diameter of 3.8 nm,and its BET surface area is 178.4 m 2/g. The average size of the composite is below 10 nm. This new photocatalyst exhibited a visible-light photocatalytic activity to decompose para -thion-methyl.更多还原