| Zn2GeO4微米球的一步合成及其光催化制氢活性 |
| |
| 引用本文： | 杨 敏,贾晓鹏,李秉轲,邓国伟,王琪慧,刘晓旸.Zn2GeO4微米球的一步合成及其光催化制氢活性[J].无机材料学报,2017,32(2):141-147. |
| |
| 作者姓名： | 杨 敏 贾晓鹏 李秉轲 邓国伟 王琪慧 刘晓旸 |
| |
| 作者单位： | (1. 成都师范学院 化学与生命科学学院, 成都611130; 2.吉林大学 无机合成与制备化学国家重点实验室, 长春130012; 3. 吉林大学 超硬材料国家重点实验室, 长春130012) |
| |
| 基金项目： | 国家自然科学基金(21271082);中国博士后第56批面上资助项目(801141080411);四川省教育厅项目(15ZA0328);成都师范学院高层次引进人才专项科研项目(YJRC2015-5) |
| |
| 摘 要： | 采用微波辅助水热法一步合成尺寸约为5 μm的Zn2GeO4微米球。实验研究了微波水热的反应温度、反应时间、乙酸锌与氧化锗的摩尔比等因素对合成Zn2GeO4微米球的影响。采用FE-SEM、TEM、XRD和UV-Vis对合成的微米球进行表征。结果表明, 当乙酸锌：氧化锗为6:2, 微波辐射温度为170℃, 反应时间10 min, 尿素用量3.604 g, 制备的Zn2GeO4微米球具有良好的光催化效果。实验测试Zn2GeO4微米球比表面积为13 m2/g, 在紫外光辐射下, 在甲醇体系中的光解水产氢速率可达到3.76 mmol/(h·g)。该方法缩短反应时间, 增强了光催化活性。
|
| 关 键 词： | Zn2GeO4 微波水热法 光催化剂 微米球 |
| 收稿时间： | 2016-05-03 |
| 修稿时间： | 2016-06-29 |
One-pot Synthesis and Photocatalytic Hydrogen Evolution Properties of Zn2GeO4 Microspheres |
| |
| YANG Min,JIA Xiao-Peng,LI Bing-Ke,DENG Guo-Wei,WANG Qi-Hui,LIU Xiao-Yang.One-pot Synthesis and Photocatalytic Hydrogen Evolution Properties of Zn2GeO4 Microspheres[J].Journal of Inorganic Materials,2017,32(2):141-147. |
| |
| Authors: | YANG Min JIA Xiao-Peng LI Bing-Ke DENG Guo-Wei WANG Qi-Hui LIU Xiao-Yang |
| |
| Affiliation: | (1. Department of Chemistry and Bioscience,Chengdu Normal University, Chengdu 611130, China; 2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry, Jilin University Changchun 130012, China; 3. National Lab of Superhard Materials, Jilin University, Changchun 130012, China) |
| |
| Abstract: | Zn2GeO4 microspheres were synthesized via a one-pot microwave-hydrothermal route, Zn2GeO4 particles with the diameter of about 5 μm can be obtained．The synthesis conditions were investigated by a series of controled experiments, revealing that reaction temperature, reaction time and molar ratio of Zn(CH3COOH)2•H2O to GeO2 were crucial factors controlling formation and morphology of Zn2GeO4 microspheres. The products were characterized by various techniques including field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis). The results showed that Zn2GeO4 synthesized at conditions when n(Zn(CH3COOH)2·H2O )/n(GeO2)=6:2, 3.604 g urea, microwave heating at 170℃ for 10 min exhibited best photo-degradation activity. With specific surface area being 13 m2/g, the Zn2GeO4 microspheres showed a stable H2 evolution rate of 3.76 mmol/(h·g) under UV light irradiation. Data from this study suggest that this method greatly reduces the reaction time and enhances the photocatalytic activity. |
| |
| Keywords: | Zn2GeO4 microwave-hydrothermal photocatalyst microsphere |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
|
