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对喷静电纺丝法制备TiO_2/ZnTiO_3复合纳米纤维及其光催化性能

The Photocatalytic Property of TiO_2/ZnTiO_3 Composite Nanofibers Prepared by Two-spinneret Electrospinning
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摘要 采用对喷静电纺丝法制备了PVP/TiO2/TPEE/Zn(CH3COO)2纳米纤维,分别在500℃、550℃、600℃、650℃和700℃煅烧5h,得到不同煅烧温度下的TiO2/ZnTiO3复合纳米纤维光催化剂,利用热重-差热分析法(TG-DTA)、扫描电子显微镜(SEM)、X射线衍射仪(XRD)对样品进行了表征,并研究了该催化剂在300W的紫外灯下催化亚甲基蓝(MB)降解的活性。结果表明,当煅烧温度为550℃时,TiO2/ZnTiO3复合纳米纤维催化剂的光催化活性最高。 PVP/TiO2/TPEE/Zn(CHaCOO)2 nanofibers were prepared by two-spinneret electrospinning. The as-spun fibers were calcined at 500℃, 550℃, 600℃, 650℃, and 700℃ for 5h, and TiO2/ZnTiO3 composite nanofibers were obtained. The fabricated samples were characterized by thermogravimetry-differential thermal analysis (TG- DTA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The processes of the photocatalytic deg- radation of methylene blue (MB) at ultraviolet lamp by the prepared nanofibers photocatalyst were investigated. The results show that TiO2/ZnTiO3 composite nanofibers calcined at 550℃ have the highest photocatalytie property.
出处 《材料导报》 EI CAS CSCD 北大核心 2012年第24期34-36,49,共4页 Materials Reports
基金 国家自然科学基金(51073005) 北京市自然科学基金(2112013) 北京市教委科技发展计划重点项目(KZ201010012012 KZ201210012013) 北京市属高等学校人才强教深化计划(IHLB) 国家973项目(2010CB933501) 北京市科技计划项目(课题)(Z111103066611004) 纺织之光青年基金
关键词 静电纺丝 TIO2 ZnTiO3复合纳米纤维 光催化性能 electrospining, TiO2/ZnTiO3 composite nanofibers, photocatalytic property
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