静电纺丝技术论文：稀土钙钛矿型氧化物纳米带的制备及光催化性质(3)

静电纺丝技术论文：稀土钙钛矿型氧化物纳米带的制备及光催化性质研究

infrared spectroscopy(FTIR). It is found that the composite nanobelts were smooth and uniform, and the width and thickness are 7-19μm and 300-600nm, respectively. LaCrO3 and LaFeO3 nanobelts obtained were orthorhombic in structure which width was 2-8μm and thickness was ca. 100nm; LaMnO3. LaCoO3. LaNiO3 and LaAlO3 nanobelts were rhombohedral system which were 2-7μm in width and ca. 100nm in thickness. And the rare earth perovskite oxides nanobelts became rougher, narrower and thinner than the relevant composite nanobelts.The

photocatalytic activities of LaMO3(M=Cr, Fe) nanobelts were studied by taking rhodamine B as degradation agent under illumination of ultraviolet ray. Under the existence of

LaCrO3(800℃) nanobelts, the degradation rate of rhodamine B reaches 94.55% after illuminated for 200min; under the

existence of LaFeO3(800℃) nanobelts. the degradation rate of rhodamine B reaches 89.56% after illuminated for 180min.The formation mechanism of LaMO3 nanobelts was also discussed and some new meaningful results are obtained.

【关键词】静电纺丝技术 稀土 钙钛矿 纳米带 光催化

【英文关键词】Electrospinning Rare earth

Perovskite Nanobelts Photocatalysis

【目录】稀土钙钛矿型氧化物纳米带的制备及光催化性质研究

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