期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
静电纺丝法制备Fe2O3/TiO2复合纳米纤维及光催化性能研究
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1. 白城师范学院化学系, 吉林白城 137000;
2. 东北师范大学先进光电子功能材料研究中心, 吉林长春 130024 -
DOI：
Electrospinning Preparation of Fe2O3/TiO2 Composite nanofibers and Their Photocatalytic Properties
摘要/Abstract
以聚乙烯吡咯烷酮、钛酸正丁酯和氯化铁为前驱体,利用静电纺丝法制备了Fe2O3/Ti O2复合纳米纤维.采用SEM,XRD,FT-IR和UV-Vis DRS等测试手段对纤维的形貌和结构进行了表征.通过对罗丹明B染料的光催化降解实验,探讨了煅烧温度和Fe2O3的含量对光催化性能的影响.结果表明:Fe2O3/Ti O2复合纳米纤维中Fe3+进入到Ti O2的晶格,从而改变了Ti O2的光谱响应范围.煅烧温度为600℃,0.5%(质量分数)Fe2O3含量的Fe2O3/Ti O2复合纳米纤维,在可见光范围具有良好的光催化活性.
By combining with so-lgel method and electrospinning technology,poly vinyl pyrrolidone (PVP) /Ti(OiPr)4/FeCl3 composite nanofibers were prepared.After calcination of the above as-spun precursor nanofibers,Fe2O3/ TiO2 composite nanofibers were successfully obtained.The morphology and structure of products were characterized by SEM,XRD,FT-IR and UV-Vis DRS.The photocatalytic efficiencies of Fe2O3/ TiO2 composite nanofibers w ere assessed by monitoring the photodegradat ion of Rhodamine B.Furthermore,the inf luences of calcination temperature as well as Fe2O3 content in the Fe2O3/ TiO2 composite nanofibers on their photocatalytic properties were investigated.The results showed that the absorption threshold of TiO2 could be shifted to visible light range due to the presence of Fe3+ in the titania framework.The Fe2O3/ TiO2 composite nanof ibers calcined at 600 e,with the molar ratio of Fe2O3 to TiO2 of 0.5%,displayed better photocatalytic activity under visible light irradiation.