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Novel hydrothermal preparation of pure brookite-type titanium(IV) oxide nanocrystal under strong acidic conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
51468 46843 2009 4 PDF Available
Title
Novel hydrothermal preparation of pure brookite-type titanium(IV) oxide nanocrystal under strong acidic conditions
Abstract

Titanium(IV) oxide (TiO2) nanocrystal with brookite phase was prepared by hydrothermal treatment of titanate nanotubes under strong acidic conditions (perchloric acid, hydrochloric acid and nitric acid). The relative fractions of crystal phases (anatase, rutile and brookite) were strongly dependent on hydrothermal treatment duration and the kind of strong acid used. A high brookite-type TiO2 content was obtained by hydrothermal treatment under perchloric acidic solution. Single-phase brookite TiO2 particles were extracted from as-prepared TiO2 by a centrifugal separation procedure, and they exhibited higher photocatalytic activity for acetaldehyde decomposition than TiO2 prepared without the separation procedure.

Keywords
Photocatalyst; Titanium(IV) oxide; Brookite; Titanate nanotube; Hydrothermal treatment
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Novel hydrothermal preparation of pure brookite-type titanium(IV) oxide nanocrystal under strong acidic conditions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 6, 15 February 2009, Pages 963–966
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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