Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17021
Title: Photocatalytic removal of NO and HCHO over nanocrystalline Zn2SnO4 microcubes for indoor air purification
Authors: Ai, Z
Lee, S 
Huang, Y
Ho, W
Zhang, L
Keywords: HCHO
NO
Photocatalysis
Zn2SnO4
Issue Date: 2010
Publisher: Elsevier
Source: Journal of hazardous materials, 2010, v. 179, no. 1-3, p. 141-150 How to cite?
Journal: Journal of hazardous materials 
Abstract: Nanocrystalline Zn2SnO4 microcubes were hydrothermally synthesized and systematically characterized by XRD, SEM, TEM, XPS, N2 adsorption-desorption, and UV-vis DRS analysis. The resulting Zn2SnO4 microcubes with the edge size ranging from 0.8 to 1.2μm were composed of numerous nanoparticles with size of 10-20nm, and their optical band gap energy was estimated to be 3.25eV from the UV-vis diffuse reflectance spectra. On degradation of nitrogen monoxide (NO) and formaldehyde (HCHO) at typical concentrations for indoor air quality, these nanocrystalline Zn2SnO4 microcubes exhibited superior photocatalytic activity to the hydrothermally synthesized ZnO, SnO2, and Degussa TiO2 P25, as well as C doped TiO2 under UV-vis light irradiation. This enhanced photocatalytic activity of the nanocrystalline Zn2SnO4 microcubes was attributed to their bigger surface areas, smaller particle size, special porous structures, and special electronic configuration. The nanocrystalline Zn2SnO4 microcubes were chemically stable as there was no obvious deactivation during the multiple photocatalytic reactions. This work presents a promising approach for scaling-up industrial production of Zn2SnO4 nanostructures and suggests that the synthesized nanocrystalline Zn2SnO4 microcubes are promising photocatalysts for indoor air purification.
URI: http://hdl.handle.net/10397/17021
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2010.02.071
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

46
Last Week
0
Last month
2
Citations as of Nov 16, 2018

WEB OF SCIENCETM
Citations

42
Last Week
0
Last month
0
Citations as of Nov 12, 2018

Page view(s)

60
Last Week
2
Last month
Citations as of Nov 12, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.