以葡萄糖为前躯体,采用水热法制备胶体碳球,以其为模板通过水热沉淀法制备C/Bi2MoO6核壳结构,然后在350℃空气中煅烧,获得了具有良好光催化性能的Bi2MoO6空心球.通过SEM、XRD、FT-IR和BET等测试方法对该催化剂进行了表征;并对其形成机理及反应过程进行了初步探讨,以亚甲基蓝作为被降解物质,研究了其光催化活性。结果表明,Bi2MoO6空心球是由纳米晶粒组成的,壁厚约为30～50nm,平均直径约为0.6～0.8μm,采用胶体碳球作模板时制得的Bi2MoO6空心球比表面积为11.315m2/g,而直接合成的粉体比表面积为3.378m2/g。在黑管灯照射下,2.5h亚甲基蓝的降解率达到了91.95%。
Colloidal carbon spheres with a hydrophilic surface were synthesized using glucose as a precursor by hydrothermal method.Carbon/Bi2MoO6 hollow spheres were successfully prepared by employing colloidal carbon spheres as template in subsection hydrothermal precipitation method.scanning electron microscopy（SEM）,X-ray diffractometry（XRD）,Fourier transform infrared（FT-IR） spectroscopy and Brumauer-Emmett-Tller（BET）were applied to characterize the morphology and structure of the as-prepared colloidal carbon spheres and Bi2MoO6 hollow spheres.The formation mechanism and reaction process of Bi2MoO6 hollow spheres were proposed.The photocatalytic activity of Bi2MoO6 hollow spheres has been tested on decomposable methylene blue under clarinet lamp.The results showed that Bi2MoO6 hollow spheres were composed of nanocrystals,the thickness was about 30～50nm,and the mean diameter was up to 0.6～0.8μm.The BET surface area of Bi2MoO6 hollow spheres and powders were about 11.315m2/g and 3.378m2/g,respectively.When the initial concentration of methylene blue（MB） was 10mg/L,the degradation rate of MB reached to 91.95% under clarinet lamp for 2.5 h by Bi2MoO6 hollow spheres.
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