TiO?hydrosols with high activity for photocatalytic degradation of formaldehyde in a gaseous phase

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2408

Title:	TiO?hydrosols with high activity for photocatalytic degradation of formaldehyde in a gaseous phase
Authors:	Liu, TX Li, FB Li, XZ
Issue Date:	21-Mar-2008
Source:	Journal of hazardous materials, 21 Mar. 2008, v. 152, no. 1, p. 347-355
Abstract:	Two types of TiO?hydrosols (TOSO and HTO) were prepared from titanium sulfate (TiOSO?)and metatitanic acid (H?TiO?) by a chemical precipitation¡Vpeptization method, respectively. The prepared hydrosols were characterized by means of X-ray diffraction, particle size distribution, scanning electron microscopy, UV¡Vvis spectroscopy, Fourier transform infrared spectroscopy, Brunauer¡VEmmett¡VTeller and Barret¡VJoyner¡VHalender methods. The results showed that the TiO?hydrosols with an anatase crystal structure had smaller particle sizes, higher surface areas, larger pore volume, and higher transparence than Degussa P-25 suspension. The
Keywords:	Air purification Formaldehyde TiO? hydrosol Photocatalytic activity
Publisher:	Elsevier
Journal:	Journal of hazardous materials
ISSN:	0304-3894
EISSN:	1873-3336
DOI:	10.1016/j.jhazmat.2007.07.003
Rights:	Journal of Hazardous Materials ? 2007 Elsevier. The journal web site is located at http://www.sciencedirect.com.
Appears in Collections:	Journal/Magazine Article

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