Characterization of H2Ti4O9 with high specific surface area prepared by a delamination/reassembling process

Jinshu Wang; Shu Yin; Tsugio Sato

doi:10.1016/j.mseb.2005.08.083

Characterization of H₂Ti₄O₉ with high specific surface area prepared by a delamination/reassembling process

Jinshu Wang, Shu Yin, Tsugio Sato

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

19 Citations (Scopus)

Abstract

H₂Ti₄O₉ nanocrystals with high specific surface areas were prepared by delamination and reassembly process through a way of ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscopy, chemical analysis, thermal analysis, N₂ adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti₄O ₉^2- in the form of titania nanosheets has lateral size less than 50 nm. The specific surface area of H₂Ti₄O ₉ nanocrystals depends on pH value of reassembling solution and ball milling time. H₂Ti₄O₉ nanocrystals prepared by ball-milling of K₂Ti₄O₉ for 2 h and suspending in 1 M HCl followed by precipitation at pH 8 had the specific surface area of 328.4 m² g^-1 which was about 16 times larger than the fibrous H₂Ti₄O₉ prepared by treating original K₂Ti₄O₉ without ball-milling in 1 M HCl.

Original language	English
Pages (from-to)	53-58
Number of pages	6
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	126
Issue number	1
DOIs	https://doi.org/10.1016/j.mseb.2005.08.083
Publication status	Published - 2006 Jan 15

Keywords

Ball-milling
HTiO
Ion exchange
Nanosheet
Specific surface area

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.mseb.2005.08.083

Cite this

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title = "Characterization of H2Ti4O9 with high specific surface area prepared by a delamination/reassembling process",

abstract = "H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and reassembly process through a way of ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscopy, chemical analysis, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O 92- in the form of titania nanosheets has lateral size less than 50 nm. The specific surface area of H2Ti4O 9 nanocrystals depends on pH value of reassembling solution and ball milling time. H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 M HCl followed by precipitation at pH 8 had the specific surface area of 328.4 m2 g-1 which was about 16 times larger than the fibrous H2Ti4O9 prepared by treating original K2Ti4O9 without ball-milling in 1 M HCl.",

keywords = "Ball-milling, HTiO, Ion exchange, Nanosheet, Specific surface area",

author = "Jinshu Wang and Shu Yin and Tsugio Sato",

year = "2006",

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AU - Yin, Shu

AU - Sato, Tsugio

PY - 2006/1/15

Y1 - 2006/1/15

N2 - H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and reassembly process through a way of ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscopy, chemical analysis, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O 92- in the form of titania nanosheets has lateral size less than 50 nm. The specific surface area of H2Ti4O 9 nanocrystals depends on pH value of reassembling solution and ball milling time. H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 M HCl followed by precipitation at pH 8 had the specific surface area of 328.4 m2 g-1 which was about 16 times larger than the fibrous H2Ti4O9 prepared by treating original K2Ti4O9 without ball-milling in 1 M HCl.

AB - H2Ti4O9 nanocrystals with high specific surface areas were prepared by delamination and reassembly process through a way of ball milling combined with ion exchange reaction. The samples were characterized by X-ray powder diffraction, transmission electron microscopy, chemical analysis, thermal analysis, N2 adsorption-desorption isotherm, and absorption spectrum. The crystallites of Ti4O 92- in the form of titania nanosheets has lateral size less than 50 nm. The specific surface area of H2Ti4O 9 nanocrystals depends on pH value of reassembling solution and ball milling time. H2Ti4O9 nanocrystals prepared by ball-milling of K2Ti4O9 for 2 h and suspending in 1 M HCl followed by precipitation at pH 8 had the specific surface area of 328.4 m2 g-1 which was about 16 times larger than the fibrous H2Ti4O9 prepared by treating original K2Ti4O9 without ball-milling in 1 M HCl.

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