QQ客服 官方微博 反馈留言

	Synthesis, characterization and photodegradation study of mixed-phase titania hollow submicrospheres with rough surface
	Zheng, Rongbo1,2; Meng, Xianwei1; Tang, Fangqiong1
刊名	Applied surface science
	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
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000263893800063
内容类型	期刊论文
URI标识	http://www.corc.org.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.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。