| Fe_3O_4-TiO_2磁性光催化剂的制备与性能 |
| |
| 引用本文： | 栾江月,张秀芳,董晓丽,马春.Fe_3O_4-TiO_2磁性光催化剂的制备与性能[J].大连工业大学学报,2013(1):51-54. |
| |
| 作者姓名： | 栾江月 张秀芳 董晓丽 马春 |
| |
| 作者单位： | 大连工业大学轻工与化学工程学院 |
| |
| 摘 要： | 采用化学共沉淀法制备磁性纳米Fe3O4作为磁载体,以溶胶-凝胶法制备了Fe3O4-TiO2磁性光催化剂,采用X射线衍射(XRD)、紫外-可见(UV-Vis)漫反射等手段对其进行表征。以亚甲基蓝水溶液为模拟污染物,测试了Fe3O4-TiO2磁性光催化剂的光催化性能,光照90min后,亚甲基蓝的脱色率可达到96.6%,相同条件下TiO2对亚甲基蓝的脱色率为93.6%。在外加磁场作用下,Fe3O4-TiO2磁性光催化剂的平均回收率为85.6%,TiO2离心分离平均回收率为62.7%,Fe3O4-TiO2磁性光催化剂在保证高催化活性的前提下实现了高效回收。
|
| 关 键 词： | 四氧化三铁-二氧化钛 磁性光催化剂 二氧化钛 光催化 |
Preparation and performance of magnetic Fe3O4-TiO2 photocatalyst |
| |
| LUAN Jiangyue,ZHANG Xiufang,DONG Xiaoli,MA Chun.Preparation and performance of magnetic Fe3O4-TiO2 photocatalyst[J].Journal of Dalian Dalian Polytechnic University,2013(1):51-54. |
| |
| Authors: | LUAN Jiangyue ZHANG Xiufang DONG Xiaoli MA Chun |
| |
| Affiliation: | School of Light Industry and Chemistry Engineering,Dalian Polytechnic University,Dalian 116034,China |
| |
| Abstract: | A novel magnetic Fe_3O_4-TiO_2 photocatalyst was prepared by sol-gel procedure with Nano magnetite core Fe_3O_4 prepared by chemical coprecipitation as the magnetic carrier.The composite particle was characterized by X ray diffraction(XRD),UV-visible diffuse(UV-Vis).The photocatalytic reactivity of samples was evaluated using MB aqueous solution as simulated contaminants.The results showed that the photocatalytic discoloration reached about 96.6% in 90 min.The average recovery of Fe_3O_4-TiO_2 magnetic photocatalyst was about 85.6% in the external magnetic field and the average recovery of TiO_2 was about 62.7% in centrifuge.A high recovery was obtained for the Fe_3O_4-TiO_2 magnetic photocatalyst at high catalytic activity. |
| |
| Keywords: | Fe_3O_4-TiO_2 magnetic photocatalyst TiO_2 photocatalysis |
| 本文献已被 CNKI 等数据库收录！ |
