Preparation and characterization of H2Ti4O9 nanocrystals

Jin Shu Wang; Hui Li; Shu Yin; Tsugio Sato

Preparation and characterization of H₂Ti₄O₉ nanocrystals

Jin Shu Wang, Hui Li, Shu Yin, Tsugio Sato

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

Abstract

H₂Ti₄O₉ nanocrystals with high specific surface areas were prepared by delamination and precipitation process through ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscope, thermal analysis, N₂ adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti₄O₉^2- in the form of titania nanosheets have lateral size less than 50nm. The specific surface area of H₂Ti₄O₉ nanocrystals depends on pH values of precipitation solution and ball milling time. The specific surface area of H₂Ti₄O₉ nanocrystals prepared by ball-milling of K₂Ti₄O₉ for 2 h and suspending in 1 mol/L HC1 followed by precipitation at pH=8 can reach 328.4 m²·g^-1.

Original language	English
Pages (from-to)	843-846
Number of pages	4
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	22
Issue number	5
Publication status	Published - 2007 Sept

Keywords

Ball-milling
HTiO
Ion exchange
Nanocrystal

ASJC Scopus subject areas

Materials Science(all)
Inorganic Chemistry

Cite this

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title = "Preparation and characterization of H2Ti4O9 nanocrystals",

abstract = "H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and precipitation process through ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscope, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O92- in the form of titania nanosheets have lateral size less than 50nm. The specific surface area of H2Ti4O9 nanocrystals depends on pH values of precipitation solution and ball milling time. The specific surface area of H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 mol/L HC1 followed by precipitation at pH=8 can reach 328.4 m2·g-1.",

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AU - Wang, Jin Shu

AU - Li, Hui

AU - Yin, Shu

AU - Sato, Tsugio

PY - 2007/9

Y1 - 2007/9

N2 - H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and precipitation process through ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscope, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O92- in the form of titania nanosheets have lateral size less than 50nm. The specific surface area of H2Ti4O9 nanocrystals depends on pH values of precipitation solution and ball milling time. The specific surface area of H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 mol/L HC1 followed by precipitation at pH=8 can reach 328.4 m2·g-1.

AB - H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and precipitation process through ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscope, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O92- in the form of titania nanosheets have lateral size less than 50nm. The specific surface area of H2Ti4O9 nanocrystals depends on pH values of precipitation solution and ball milling time. The specific surface area of H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 mol/L HC1 followed by precipitation at pH=8 can reach 328.4 m2·g-1.

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KW - Ion exchange

KW - Nanocrystal

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Preparation and characterization of H₂Ti₄O₉ nanocrystals

Abstract

Keywords

ASJC Scopus subject areas

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