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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (17): 1981-1986. 上一篇    下一篇

研究论文

真空离子溅射法制备TiO2∶Au复合纳米纤维新型光催化剂及其 降解乙醛性能研究

潘 超*,a 顾忠泽b 董 丽c

  

  1. (a大连水产学院理学院 大连 116023)
    (b东南大学生物电子学国家重点实验室 南京 210096)
    (c大连民族学院理学院 大连 116023)

  • 投稿日期:2008-12-08 修回日期:2009-02-15 发布日期:2009-09-14
  • 通讯作者: 潘超

Use of Ion Sputter Coating to Prepare the Gold Deposited TiO2 Nanofiber Photocatalyst and the Photocatalytic Degradation of Acetaldehyde

Pan, Chao*,a Gu, Zhongzeb Dong, Lic   

  1. (a College of Science, Dalian Fisheries University, Dalian 116023)
    (b State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096)
    (c College of Science, Dalian Nationalities University, Dalian 116023)
  • Received:2008-12-08 Revised:2009-02-15 Published:2009-09-14
  • Contact: Pan, Chao

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采用静电纺丝技术与真空离子溅射相结合的方法制备了TiO2∶Au复合纳米纤维, 并采用SEM和X射线电子能谱仪对其进行了表征. 结果表明TiO2∶Au纳米纤维的表面形态能通过Au沉积时间得到很好的控制. 同时在紫外光照射下采用乙醛体系考察了TiO2纳米纤维和TiO2∶Au复合纳米纤维催化剂降解乙醛性能, 结果证明TiO2∶Au复合纳米纤维具有更好的催化效率, 紫外光照射70 min后乙醛被完全降解.

关键词: 静电纺丝, 真空离子溅射, TiO2∶Au纳米纤维, 光降解

The Au-doped titania (TiO2∶Au) nanofibers were prepared by a combination of an electrospinning method and a sputtering technology, and characterized by scanning electron microscopy and X-ray photoelectron spectroscopy. The results show that the morphologies of Au deposited TiO2 nanofibers can be well controlled by the sputtering time. In addition, the photocatalytic properties of TiO2 nanofibers and TiO2∶Au nanofibers were investigated by degrading acetaldehyde under UV irradiation. The photodegradation of porous TiO2∶Au nanofibers exhibited the best photocatalytic efficiency, where 100% acetaldehyde could be decomposed after UV exposure for 70 min.

Key words: electrospinning, ion sputter coating, TiO2∶Au nanofibers, photodegradation

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