Can I read Effects of peptizing conditions on nanometer properties and photocatalytic activity of TiO2 hydrosols prepared by H2TiO3 on EtoBox?

Effects of peptizing conditions on nanometer properties and photocatalytic activity of TiO2 hydrosols prepared by H2TiO3 by Tong-xu Liu; Fang-bai Li; Xiang-zhong Li is a Environmental Science article available to read on EtoBox.

What is Effects of peptizing conditions on nanometer properties and photocatalytic activity of TiO2 hydrosols prepared by H2TiO3 about?

TiO2 hydrosols were prepared from metatitanic acid (H2TiO3) by chemical precipitation-peptization method under various peptizing conditions. The effects of peptizing conditions on nanosized properties and photocatalytic activity of TiO2 hydrosols were investigated. The crystal structure, crystallinity, particle size distribution, and transparency (T%) of as-obtained hydrosols were characterized by means of X-ray diffraction, transmission electron microscopy, light-scattering size analyzer, and UV-vis transmittance spectra. The results showed that the properties of hydrosols depended on peptizing conditions including a molar ratio of H+/Ti, temperature, and solid content. The photoactivity of TiO2 hydrosols was evaluated in terms of the degradation of rhodamine B (RhB) in aqueous solution, and formaldehyde (HCHO) and methyl mercaptan (CH3SH) in gaseous phase. The results showed that increase in H+/Ti ranging 0.19-0.75 led to the decrease in particle size and the increase in transparency. With increasing of temperature, particle sizes increased while the transparency and photoactivity decreased steadily when the temperature was higher than 65 degrees C. The particle size, transparenc

Who reads Effects of peptizing conditions on nanometer properties and photocatalytic activity of TiO2 hydrosols prepared by H2TiO3?

Author

Tong-xu Liu; Fang-bai Li; Xiang-zhong Li

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)

Published

2008

Language

EN

Field

Environmental Science (Physical Sciences)