Synthesis, characterization and photodegradation study of mixed-phase titania hollow submicrospheres with rough surface
文献类型：期刊论文
| 作者 | Zheng, Rongbo1,2; Meng, Xianwei1; Tang, Fangqiong1 |
| 刊名 | Applied surface science
 |
| 出版日期 | 2009-03-15 |
| 卷号 | 255期号:11页码:5989-5994 |
| 关键词 | Hydrothermal Titania Hollow spheres Mixed-phase Photocatalysis |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2009.01.052 |
| 通讯作者 | Tang, fangqiong(tangfq@mail.ipc.ac.cn) |
| 英文摘要 | Titania hollow submicrospheres with mixed phase (anatase-brookite or anatase-rutile) were synthesized via the combination of hydrothermal treatment and calcination of submicrospheres consisting of a polystyrene core and an amorphous tio(2) shell. after hydrothermal treatment, amorphous titania shell could be transformed to anatase-brookite shell consisting of loose packed titania nanocrystals, which could be further converted to anatase-brookite (below 700 degrees c) or anatase-rutile titania (700-800 degrees c) hollow spheres with rough surface via calcination. the loose packing of titania nanocrystals not only inhibited the transformation temperature from anatase to rutile, but also provided titania hollow submicrospheres with high photodegradation activity of rhodamine b. the photocatalytic activity of titania hollow spheres increased firstly then decreased when the calcination temperature was varied in the range of 450-800 degrees c, while hollow spheres obtained via calcinating at 700 degrees c exhibited the highest photocatalytic activity, which was five times higher than that of counterpart without hydrothermal treatment. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | ENHANCED PHOTOCATALYTIC ACTIVITY ; NANOCRYSTALLINE TITANIA ; ANATASE ; RUTILE ; PARTICLES ; DIOXIDE ; SPHERES ; FILMS ; NANOPARTICLES |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| WOS类目 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000263893800063 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2402204 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Tang, Fangqiong |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Lab Controllable Preparat & Applicat Nanomat, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Rongbo,Meng, Xianwei,Tang, Fangqiong. Synthesis, characterization and photodegradation study of mixed-phase titania hollow submicrospheres with rough surface[J]. Applied surface science,2009,255(11):5989-5994. |
| APA | Zheng, Rongbo,Meng, Xianwei,&Tang, Fangqiong.(2009).Synthesis, characterization and photodegradation study of mixed-phase titania hollow submicrospheres with rough surface.Applied surface science,255(11),5989-5994. |
| MLA | Zheng, Rongbo,et al."Synthesis, characterization and photodegradation study of mixed-phase titania hollow submicrospheres with rough surface".Applied surface science 255.11(2009):5989-5994. |
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来源：中国科学院大学
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