| 锐钛矿 TiO2纳米片的可控合成和光催化机制 |
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| 引用本文： | 孟凡明,范拯华,巩金峰,袁江涛,李慧杰.锐钛矿 TiO2纳米片的可控合成和光催化机制[J].安徽大学学报(自然科学版),2016,40(3):37-43. |
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| 作者姓名： | 孟凡明 范拯华 巩金峰 袁江涛 李慧杰 |
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| 作者单位： | 安徽大学物理与材料科学学院,安徽合肥,230601;安徽大学物理与材料科学学院,安徽合肥,230601;安徽大学物理与材料科学学院,安徽合肥,230601;安徽大学物理与材料科学学院,安徽合肥,230601;安徽大学物理与材料科学学院,安徽合肥,230601 |
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| 基金项目： | Anhui Provincial Natural Science Foundation of China |
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| 摘 要： | 采用溶剂热法合成了锐钛矿T iO2纳米结构，研究乙醇、乙二醇和丙三醇对 T iO2形貌和光催化性能的影响。采用X射线衍射仪（XRD）、扫描电子显微镜（SEM ）、拉曼光谱（Raman）、紫外可见近红外分光光度计（UV‐Vis）等对此TiO2样品进行表征。结果表明：随着黏度的增加，TiO2的形貌由纳米片到纳米棒最后形成纳米颗粒；在乙醇溶液中合成的T iO2纳米片表现出优异的光催化性能，这是由于U V光具有粒子性，光的多次反弹使得样品具有高的紫外吸收所致。
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| 关 键 词： | 溶剂热法 合成 形貌 光催化性能 |
Controllable synthesis of anatase TiO2 nanosheets and thei r photocatalytic mechanism |
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| MENG Fanming,FAN Zhenghua,GONG Jinfeng,YUAN Jiangtao,LI Huijie.Controllable synthesis of anatase TiO2 nanosheets and thei r photocatalytic mechanism[J].Journal of Anhui University(Natural Sciences),2016,40(3):37-43. |
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| Authors: | MENG Fanming FAN Zhenghua GONG Jinfeng YUAN Jiangtao LI Huijie |
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| Abstract: | Anatase TiO2 nanostructures were synthesized by a facile solvothermal method . The effects of ethanol ,ethylene glycol ,and glycerol on the morphology and photocatalytic activity of TiO2 nanostructures were investigated .The as‐synthesized nanostructures have been characterized by X‐ray diffraction (XRD ) , scanning electron microscopy (SEM ) , Raman spectroscopy (Raman) ,and UV‐Vis absorption spectra (UV‐Vis) .It was found that the morphology changes from nanosheets to nanorods ,and then to nanoparticles with the increase of viscosity . TiO2 nanosheets obtained with ethanol solution exhibited excellent photocatalytic activity ,which could be attributed to the high UV light absorption resulted from multiple bounces of particles of UV light . |
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| Keywords: | solvothermal method synthesis morphology photocatalytic activity |
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