可见光照射下PbSnO(3)纳米结构对异丙醇的光催化降解

Chen Di, Ouyang Shuxin, Ye Jinhua

International Center for Materials Nanoarchitectonics (MANA) and Photocatalytic Materials Center (PMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 Japan.

Nanoscale Res Lett. 2009 Jan 7;4(3):274-280. doi: 10.1007/s11671-008-9237-y.

Nanostructured PbSnO(3) photocatalysts with particulate and tubular morphologies have been synthesized from a simple hydrothermal process. As-prepared samples were characterized by X-ray diffraction, Brunauer-Emmet-Teller surface area, transmission electron microscopy, and diffraction spectroscopy. The photoactivities of the PbSnO(3) nanostructures for isopropanol (IPA) degradation under visible light irradiation were investigated systematically, and the results revealed that these nanostructures show much higher photocatalytic properties than bulk PbSnO(3) material. The possible growth mechanism of tubular PbSnO(3) catalyst was also investigated briefly.

通过简单的水热法合成了具有颗粒状和管状形态的纳米结构PbSnO(3)光催化剂。采用X射线衍射、布鲁诺尔-埃米特-特勒比表面积、透射电子显微镜和衍射光谱对制备的样品进行了表征。系统研究了PbSnO(3)纳米结构在可见光照射下对异丙醇（IPA）降解的光活性，结果表明这些纳米结构比块状PbSnO(3)材料具有更高的光催化性能。还简要研究了管状PbSnO(3)催化剂可能的生长机理。