中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
An approach for controllable synthesis of different-phase titanium dioxide nanocomposites with peroxotitanium complex as precursor

文献类型:期刊论文

作者Zhang, Yang; Wu, Liangzhuan; Zeng, Qinghui; Zhi, Jinfang1
刊名Journal of physical chemistry c
出版日期2008-10-01
卷号112期号:42页码:16457-16462
ISSN号1932-7447
DOI10.1021/jp804524y
通讯作者Zhi, jinfang(zhi-mail@mail.ipc.ac.cn)
英文摘要In this paper, we describe a systemic approach for the preparation of different-phase titanium dioxide nanocomposites with peroxotitanium complex (ptc) as a precursor in aqueous solution by a low-temperature process. three phases (anatase, rutile, and brookite) of tio2 nanoparticles were prepared by refluxing the ptc precursor at different ph values at 100 degrees c and ambient pressure. at ph = 0, acicular rutile-phase nanoparticles were prepared, while at a ph of about 1, a stable milk white sol that contains about 63% brookite phase was obtained; the brookite particles are mainly irregular quadrate. furthermore, the spherical and spindle anatase nanoparticles were prepared from the precursor with ph = 3 and 6, respectively. the influence of the different concentration of the peroxide on the products was also investigated. it is noticed that there was an optimum h2o2/ti molar ratio for different phase formation. finally, the photocatalytic properties of different products were measured by decomposing methylene blue. the spherical anatase phase showed higher photocatalytic degradation rates for methylene blue than others.
WOS关键词LOW-TEMPERATURE SYNTHESIS ; MODIFIED ANATASE SOL ; TIO2 THIN-FILM ; ACID-SOLUTION ; AQUEOUS-SOLUTIONS ; BROOKITE ; RUTILE ; TRANSFORMATION ; NANOPARTICLES ; NANORODS
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种英语
WOS记录号WOS:000260129400050
出版者AMER CHEMICAL SOC
URI标识http://www.irgrid.ac.cn/handle/1471x/2389308
专题中国科学院大学
通讯作者Zhi, Jinfang
作者单位1.Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yang,Wu, Liangzhuan,Zeng, Qinghui,et al. An approach for controllable synthesis of different-phase titanium dioxide nanocomposites with peroxotitanium complex as precursor[J]. Journal of physical chemistry c,2008,112(42):16457-16462.
APA Zhang, Yang,Wu, Liangzhuan,Zeng, Qinghui,&Zhi, Jinfang.(2008).An approach for controllable synthesis of different-phase titanium dioxide nanocomposites with peroxotitanium complex as precursor.Journal of physical chemistry c,112(42),16457-16462.
MLA Zhang, Yang,et al."An approach for controllable synthesis of different-phase titanium dioxide nanocomposites with peroxotitanium complex as precursor".Journal of physical chemistry c 112.42(2008):16457-16462.

入库方式: iSwitch采集

来源:中国科学院大学

浏览0
下载0
收藏0
其他版本

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。