Quartz-titania composites for the photocatalytical modification of construction materials

被引：19

作者：

Kamaruddin, Sameena ^{[1
]}

Stephan, Dietmar ^{[2
]}

机构：

[1] Univ Kassel, Dept Civil Engn, D-34125 Kassel, Germany

[2] Tech Univ Berlin, Dept Civil Engn, D-13355 Berlin, Germany

来源：

CEMENT & CONCRETE COMPOSITES | 2013年 / 36卷

关键词：

Core-shell-particles; Quartz; Photocatalysis; NO-degradation; Sol-gel-method; SILICA; PARTICLES; NANOPARTICLES;

D O I：

10.1016/j.cemconcomp.2012.08.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper the synthesis of photocatalytically modified core-shell composites is reported. The synthesis was realized by hydrolysis and condensation of tetrapropylorthotitanate on ground quartz, which is used as an additive in mortar and concrete. This allowed a controlled growth of titania layers on the particles with different thicknesses. The efficiency of the coating process was studied by interpretation of XRF results. The morphology of the composites was analyzed via SEM. Photoactivity of the particles was studied by analyzing the titania crystal phases of the shell (XRD) and calculating the photonic efficiency of NO-degradation measurements. Moreover methylene blue degradation was performed to reflect the self cleaning properties of the composite materials. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：109 / 115

页数：7