| Bi_2O_3纳米纤维的制备、表征及光催化性能 |
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| 引用本文： | 李跃军,曹铁平,张健.Bi_2O_3纳米纤维的制备、表征及光催化性能[J].河北师范大学学报(自然科学版),2011,35(6). |
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| 作者姓名： | 李跃军 曹铁平 张健 |
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| 作者单位： | 1. 白城师范学院化学系,吉林白城,137000
2. 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金(50572014); 教育部“新世纪优秀人才支持计划”(NCET-05-0322) |
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| 摘 要： | 采用溶胶-凝胶过程和静电纺丝技术相结合的方法,以聚丙烯腈(PAN)和硝酸铋为前驱物,制备了PAN/Bi(NO3)3复合纤维,该复合纤维经高温煅烧得到了Bi2O3纳米纤维.利用X射线衍射、扫描电子显微镜、红外光谱、紫外可见漫反射光谱等测试技术对样品的结构与性能进行了表征.结果表明,Bi2O3纳米纤维为规则的一维结构,直径分布均匀,具有较强的紫外光吸收性能.以罗丹明B为模拟污染物,考察了Bi2O3纳米纤维的光催化性能.实验结果表明,煅烧温度为500℃时,光催化活性最佳,TOC去除率为48.7%.
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| 关 键 词： | Bi2O3纳米纤维 静电纺丝 光催化降解 |
Synthesis Characterization and Photocatalysis of the Bi_2O_3 Nanofibers |
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| LI Yuejun,CAO Tieping,ZHANG Jian.Synthesis Characterization and Photocatalysis of the Bi_2O_3 Nanofibers[J].Journal of Hebei Normal University,2011,35(6). |
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| Authors: | LI Yuejun CAO Tieping ZHANG Jian |
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| Institution: | LI Yuejun1,CAO Tieping1,ZHANG Jian2(1.Department of Chemistry,Baicheng Normal College,Jilin Baicheng 137000,China,2.School of Materials Science and Engineering,Beijing University of Science and Technology,Beijing 100083,China) |
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| Abstract: | Bi2O3 nanofibers were prepared via sol-gel process combined with electrospinning,a precursor mixture of polyacrylonitrile(PAN)/bismuth nitrate,followed by calcination treatment of the electrospun PAN/Bi(NO3)3 composite fibers.The Bi2O3 nanofibers were characterized with X-ray diffraction,scanning electron microscopy,FT-IR spectra and UV-vis diffusereflectance spectroscopy,respectively.The results show that Bi2O3 nanofibers have one dimensional structure with uniformly distributed diameter and strong UV abso... |
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| Keywords: | Bi2O3 nanofibers electrospinning photocatalytic degradation |
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