fulltext.study @t Gmail

Preparation of nanocrystals hydroxyapatite/TiO2 compound by hydrothermal treatment

Paper ID Volume ID Publish Year Pages File Format Full-Text
49024 46541 2006 4 PDF Available
Title
Preparation of nanocrystals hydroxyapatite/TiO2 compound by hydrothermal treatment
Abstract

Hydroxyapatite/TiO2 compound had been successfully synthesized by hydrothermal treatment of HAp powders and Ti(OH)4 solutions at 100–190 °C with different hydroxyapatite/TiO2 proportion. The hydroxyapatite/TiO2 compounds were characterized by various methods including FT-IR, BET, TEM, EDX, XRD and ICP. TEM observation showed that small granule TiO2, identified as anatase crystals of 3–5 nm, were deposited on HAp rod-like crystals. X-ray diffraction results indicated that hydroxyapatite and anatase phase appeared and with higher colloidal TiO2 added into the HAp/TiO2 compound, there was more anatase appeared. With increasing colloidal TiO2 addition, FT-IR spectroscopy revealed PO43− band at 572, 602, 962, 1046, 1090 cm−1 became decreasingly, and ICP spectrometry revealed the content of Ti4+ increased. The photocatalytic activity of the hydroxyapatite/TiO2 particles was examined by decomposition of methylene blue (MB). The results showed that photocatalytic properties of hydroxyapatite/TiO2 compound are more effective than that of hydroxyapatite and TiO2.

Keywords
Hydroxyapatite; TiO2; Hydrothermal; Photocatalytic activity; Nanocrystal
First Page Preview
Preparation of nanocrystals hydroxyapatite/TiO2 compound by hydrothermal treatment
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 63, Issues 1–2, 22 March 2006, Pages 41–44
Authors
, , , , , ,
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us