可移动金核的二氧化钛空心球合成及光催化性质
가이동금핵적이양화태공심구합성급광최화성질
Hollow Spheres with Moveable Au Nanoparticles in Core and Titanium Oxide Shell: Synthesis and Photocatalytic Activity
  • 万方数据
    无机化学学报 무궤화학학보
    JOURNAL OF INORGANIC CHEMISTRY
    2008年 7期 1172-1176 ,共5页

    闵宇霖%万勇%刘蓉%俞书宏

    민우림%만용%류용%유서굉

    核壳结构%二氧化钛%光催化%空心球 覈殼結構%二氧化鈦%光催化%空心毬
    핵각결구%이양화태%광최화%공심구
    core-shell%titanium oxide%photocatalytic activity%hollow sphere


    Uniform hollow Au@TiO2 core shell spheres with moveable Au nanoparticles were synthesized based on templating against Au@carbon spheres. The diameter of the shell of the Au@TiO2 spheres could be controlled by adjusting the Ti(OC4H9)4 hydrolyzing reaction time or the ratio of Ti(OC4H9)4 to Au@carbon spheres, and the shell thickness of the core-shell spheres can be varied from 25 nm to 40 nm. As prepared hollow Au@TiO2 core-shell spheres display enhanced photocatalytic activity in the initial stage of photocatalytic degradation of methylene blue compared with pure hollow TiO2 spheres and the commercial photocatalyst TiO2(P-25).
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