Synthesis and characterization of phosphated mesoporous titanium dioxide with high photocatalytic activity

doi:10.1021/cm0340781

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	Synthesis and characterization of phosphated mesoporous titanium dioxide with high photocatalytic activity
	Yu, JC ; Zhang, LZ ; Zheng, Z ; Zhao, JC
刊名	CHEMISTRY OF MATERIALS
	2003-06-03
卷号	15 期号:11 页码:2280-2286
ISSN号	0897-4756
DOI	10.1021/cm0340781
英文摘要	A surfactant-templated approach was used to synthesize phosphated mesoporous titanium dioxide by incorporating phosphorus from phosphoric acid directly into the framework of TiO2. The resulting materials were characterized by XRD, nitrogen adsorption, TEM, XPS analysis, UV-vis spectroscopy, FT-IR spectroscopy, and isoelectric point measurements. The surface area of phosphated mesoporous TiO2 exceeded 300 m(2)/g after calcination at 400 degreesC. It was found that the incorporation of phosphorus could stabilize the TiO2 framework and increase the surface area significantly. This stabilization is attributed to two reasons: the more complete condensation of surface Ti-OH in the as-prepared sample and the inhibition of grain growth of the embedded anatase TiO2 by the interspersed amorphous titanium phosphate matrix during thermal treatment. Both pure and phosphated mesoporous TiO2 show significant activities on the oxidation of n-pentane. The higher photocatalytic activity of phosphated mesoporous TiO2 can be explained by the extended band gap energy, large surface area, and the existence of Ti ions in a tetrahedral coordination.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000183228000028
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/80905]
专题	中国科学院化学研究所
通讯作者	Yu, JC
作者单位	1.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China 2.Chinese Univ Hong Kong, Environm Sci Programme, Shatin, Hong Kong, Peoples R China 3.Chinese Acad Sci, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Yu, JC,Zhang, LZ,Zheng, Z,et al. Synthesis and characterization of phosphated mesoporous titanium dioxide with high photocatalytic activity[J]. CHEMISTRY OF MATERIALS,2003,15(11):2280-2286.
APA	Yu, JC,Zhang, LZ,Zheng, Z,&Zhao, JC.(2003).Synthesis and characterization of phosphated mesoporous titanium dioxide with high photocatalytic activity.CHEMISTRY OF MATERIALS,15(11),2280-2286.
MLA	Yu, JC,et al."Synthesis and characterization of phosphated mesoporous titanium dioxide with high photocatalytic activity".CHEMISTRY OF MATERIALS 15.11(2003):2280-2286.