Visible light photocatalyst: Iodine-doped mesoporous titania with a bicrystalline framework

IMR OpenIR

	Visible light photocatalyst: Iodine-doped mesoporous titania with a bicrystalline framework
	G. Liu; Z. G. Chen; C. L. Dong; Y. N. Zhao; F. Li; G. Q. Lu; H. M. Cheng
	2006
发表期刊	Journal of Physical Chemistry B
ISSN	1520-6106
卷号	110 期号:42 页码:20823-20828
摘要	Iodine-doped (I-doped) mesoporous titania with a bicrystalline (anatase and rutile) framework was synthesized by a two-step template hydrothermal synthesis route. I-doped titania with anatase structure was also synthesized without the use of a block copolymer as a template. The resultant titania samples were characterized by X-ray diffraction, Raman spectroscopy, Fourier transform infrared, nitrogen adsorption, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV-visible absorption spectroscopy. Both I-doped titania samples, with and without template, show much better photocatalytic activity than commercial P25 titania in the photodegradation of methylene blue under the irradiation of visible light (> 420 nm) and UV-visible light. Furthermore, I-doped mesoporous titania with a bicrystalline framework exhibits better activity than I-doped titania with anatase structure. The effect of rutile phase in titania on the adsorptive capacity of water and surface hydroxyl, and photocatalytic activity was investigated in detail. The excellent performance of I-doped mesoporous titania under both visible light and UV-visible light can be attributed to the combined effects of bicrystalline framework, high crystallinity, large surface area, mesoporous structure, and high visible light absorption induced by I-doping.
部门归属	univ queensland, sch engn, australian res council ctr funct nanomat, st lucia, qld 4072, australia. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;lu, gq (reprint author), univ queensland, sch engn, australian res council ctr funct nanomat, st lucia, qld 4072, australia;maxlu@uq.edu.au cheng@imr.ac.cn
关键词	Sensitized Solar-cells Raman-spectra Tio2 Powders Anatase Tio2 Rutile Nanoparticles Phase Water Temperature Particles
URL	查看原文
WOS记录号	WOS:000241381600020
引用统计	被引频次：235[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34352
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Liu,Z. G. Chen,C. L. Dong,et al. Visible light photocatalyst: Iodine-doped mesoporous titania with a bicrystalline framework[J]. Journal of Physical Chemistry B,2006,110(42):20823-20828.
APA	G. Liu.,Z. G. Chen.,C. L. Dong.,Y. N. Zhao.,F. Li.,...&H. M. Cheng.(2006).Visible light photocatalyst: Iodine-doped mesoporous titania with a bicrystalline framework.Journal of Physical Chemistry B,110(42),20823-20828.
MLA	G. Liu,et al."Visible light photocatalyst: Iodine-doped mesoporous titania with a bicrystalline framework".Journal of Physical Chemistry B 110.42(2006):20823-20828.