| 三氧化钨纳米片的制备及其光催化性质研究 |
| |
| 引用本文： | 宋继梅,张小霞,焦剑,汪鑫.三氧化钨纳米片的制备及其光催化性质研究[J].安徽大学学报(自然科学版),2009,33(3). |
| |
| 作者姓名： | 宋继梅 张小霞 焦剑 汪鑫 |
| |
| 作者单位： | 安徽大学,化学化工学院,功能无机材料化学安徽省重点实验室,安徽,合肥,230039 |
| |
| 基金项目： | 安徽省教育厅自然科学基金资助项目(2005KJ100);;安徽省高等学校“十五”优秀人才建设基金资助项目;;安徽大学人才队伍建设基金资助项目 |
| |
| 摘 要： | 利用化学沉淀法和水热法制备单斜相和正交相WO3纳米片,通过X射线衍射(XRD)、扫描电子显微镜(SEM)对合成产物进行表征.以合成的WO3光催化降解次甲基蓝染料为模型,研究光催化反应的影响因素,比较不同物相WO3的催化性能,测定单斜相和正交相WO3的带隙能.与正交相产物相比,单斜相WO3的带隙能较小,更容易发生电子吸光和跃迁,产生数量较多的电子-空穴对,因而具有较高的光催化活性.
|
| 关 键 词： | 纳米片 WO3 制备 光催化降解 物相 |
Synthesis and photocatalytic properties of tungsten trioxide nanoflakes |
| |
| SONG Ji-mei,ZHANG Xiao-xia,JIAO Jian,WANG Xin.Synthesis and photocatalytic properties of tungsten trioxide nanoflakes[J].Journal of Anhui University(Natural Sciences),2009,33(3). |
| |
| Authors: | SONG Ji-mei ZHANG Xiao-xia JIAO Jian WANG Xin |
| |
| Institution: | College of Chemistry and Chemical Engineering;Key Laboratory of Anhui Province of Functional Inorganic Materials Chemistry;Anhui University;Hefei 230039;China |
| |
| Abstract: | Monoclinic and orthorhombic WO3 nanoflakes were invidiously obtained by chemical precipitation and hydrothermal treatment.The products were characterized via X-ray diffraction(XRD) and field emitted scanning electron microscopy(FESEM).The photocatalytic activities of as-synthesized WO3 nanoflakes for methylene blue were researched.The band gaps of as-prepared products were determined by UV-Vis absorption spectra.Compared with orthorhombic WO3,the band gap of monoclinic tungsten trioxide was lower.So,the pho... |
| |
| Keywords: | nanoflakes WO3 preparation photocatalytic degradation phase |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
