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| 高比表面空心球状ZnO/ZnAl2O4复合光催化剂制备及活性 | |
| 引用本文： | 张 丽,阎建辉,周民杰,杨亚辉,刘又年.高比表面空心球状ZnO/ZnAl2O4复合光催化剂制备及活性[J].无机化学学报,2012,28(9):1827-1834. |
| 作者姓名： | 张 丽 阎建辉 周民杰 杨亚辉 刘又年 |
| 作者单位： | 1. 中南大学化学化工学院,长沙410083;湖南理工学院化学化工学院,岳阳414006;湖南理工学院精细石油化工催化与分离湖南省重点实验室,岳阳414006 2. 湖南理工学院化学化工学院,岳阳414006;湖南理工学院精细石油化工催化与分离湖南省重点实验室,岳阳414006 3. 中南大学化学化工学院,长沙,410083 |
| 基金项目： | 国家自然科学基金(No.21171175);湖南省科技计划项目(No.2012SK3174);湖南省创新团队基金资助项目 |
| 摘 要： | 以葡萄糖为模板,聚乙二醇(PEG-4000)为分散剂通过一步水热法所得前驱体,经500℃焙烧4 h得到ZnO/ZnAl2O4产物。并用XRD、SEM、TEM、BET、TG/DTA和UV-Vis DRS等技术对样品进行表征。结果表明产物为空心球状ZnO/ZnAl2O4复合光催化剂,比表面积高达158.3 m2.g-1。在模拟太阳光照射下,以甲基橙溶液的光催化降解考察样品的光催化活性,研究了焙烧温度、pH值和PEG加入量对样品光催化活性的影响。结果表明,当pH=9,PEG加入量为10%(以反应理论得到的前驱体ZnO/ZnAl2O4的质量来衡量)时,光催化活性最佳,光照60 min后,0.5 g.L-1光催化剂用量对甲基橙的脱色率达98.7%,与TiO2 Degussa P-25进行比较,相同条件下对甲基橙的脱色率提高了7.7%。 |
| 关 键 词： | ZnO/ZnAl2O4 水热法 比表面 光催化 |
Preparation and Photocatalytic Property of Hollow Sphere-Like ZnO/ZnAl2O4 Composite Photocatalysts with High Specific Surface Area |
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| ZHANG Li,YAN Jian-Hui,ZHOU Min-Jie,YANG Ya-Hui and LIU You-Nian.Preparation and Photocatalytic Property of Hollow Sphere-Like ZnO/ZnAl2O4 Composite Photocatalysts with High Specific Surface Area[J].Chinese Journal of Inorganic Chemistry,2012,28(9):1827-1834. | |
| Authors: | ZHANG Li YAN Jian-Hui ZHOU Min-Jie YANG Ya-Hui and LIU You-Nian |
| Affiliation: | College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, China; Hunan Province Key Laboratory of Cataly,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, China; Hunan Province Key Laboratory of Cataly,School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414000, China; Hunan Province Key Laboratory of Catalysis and Separation of Speciality Petrochemicals, Hunan Institute of Science and Technology, Yueya,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China and College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
| Abstract: | |
| Keywords: | ZnO/ZnAl2O4 hydrothermal process specific surface area photocatalysis |
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