ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A series of layered-structure Bi-based oxychlorides such as BiOCl, Bi3O4Cl, Na0.5Bi1.5O2Cl,Bi4NbO8Cl and MBiO2Cl (M = Ca, Sr, Ba, Cd, Pb) used as efficient photocatalysts. Among them, Bi3O4Cl(Eg = 2.79 eV), Na0.5Bi1.5O2Cl (Eg = 3.03 eV), Bi4NbO8Cl (Eg = 2.38 eV) and PbBiO2Cl (Eg = 2.45 eV) arevisible-light-responsive. The powders synthesized by solid state reactions were characterized by X-raydiffraction (XRD) and UV-Vis diffuse reflection spectrum. Their photocatalytic activities were evaluatedby the degradation of methyl orange. The results generally show that the UV-induced photocatalyticperformances of the novel oxychloride catalysts are better than or comparable to that of anatase TiO2. Thehigh photocatalytic performance of Bi-based oxychlorides is mainly ascribed to the presence of stronginternal static electric fields between layers
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1503.pdf
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