摘要
采用静电纺丝法制备了Fe2O3掺杂纳米TiO2的有机无机PVP/Fe2O3-TiO2纤维,经高温焙烧得到Fe2O3-TiO2纳米纤维。利用差动-热重(DSC-TGA)、傅里叶红外光谱(FT-IR)、扫描电镜(SEM)、XRD和比表面积分析仪等对样品进行了表征。以10mg/L亚甲基蓝溶液为底物,研究了Fe2O3掺杂量和焙烧温度等对亚甲基蓝太阳光催化降解效果的影响。结果表明,掺杂量为0.08%、焙烧温度为500℃得到的Fe2O3-TiO2纳米纤维光降解效果最好,达到96.3%,重复使用7次降解率仍在90%以上。
The method of electrostatic spinning was adopted to prepare Fe2O3 doped nano TiO2 organic-inorganic PVP/ Fe2O3-TiO2 fibers,and Fe2O3-TiO2 nanofibers was obtained by high temperature calcination.The nanofibers were characterized by DSC-TGA,FT-IR,SEM,XRD,et al.The photocatalytic degradation of methylene blue using Fe2O3-TiO2 nanofiber as catalyst under sunshine was investigated.The results showed that the degradation rate of the nanofibers was the best 96.3% when the content of dopant was 0.08% and calcination temperature was 500℃,and the degregation rate remained above 90% after seven times reuse.
出处
《化工新型材料》
CAS
CSCD
北大核心
2013年第8期59-61,69,共4页
New Chemical Materials
