Article ID Journal Published Year Pages File Type
1489279 Materials Research Bulletin 2013 4 Pages PDF
Abstract

Glass ceramics were prepared by heat-treating MO–TiO2–P2O5 (M = Mg, Ca, Sr and Ba) and R2O–TiO2–P2O5–SiO2 (R = Li, Na and K) glasses, and their photocatalytic activity was investigated. The crystalline phases precipitated in the glasses were only Nasicon-type crystals, MTi4(PO4)6 or RTi2(PO4)3. Decomposition experiments of both methylene blue (MB) and acetaldehyde showed that the glass ceramics exhibited effective photocatalytic activity. The activity did not depend on the radius of the M2+ or R+ ion, and higher activity was observed in the MgTi4(PO4)6 and CaTi4(PO4)6 precipitated glass ceramics.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Glass ceramics containing Nasicon-type crystals were prepared. ► The glass ceramics showed photocatalytic activity under UV irradiation. ► Higher activity was observed in the MgTi4(PO4)6- and CaTi4(PO4)6-containing glass ceramics.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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