Effect of firing temperature on the photocatalytic activity of anatase ceramic glazes

被引：40
|
作者：
Tezza, Vanessa Brunel [1 ]
Scarpato, Mauricio [1 ]
Silva Oliveira, Luis Felipe [2 ]
Bernardin, Adriano Michael [1 ]
机构：
[1] Santa Catarina Extreme South Univ, Ceram Mat Grp, BR-88806000 Criciuma, SC, Brazil
[2] La Salle Coll, BR-92000010 Canoas, RS, Brazil
来源：
POWDER TECHNOLOGY | 2015年 / 276卷
关键词：
Coatings; Photoactive properties; Anatase; Glazes; Ceramic tiles; ORANGE II; TIO2; COATINGS; PHOTODEGRADATION; PHOTOOXIDATION; NANOPARTICLES; DECOLORATION; PHOTOLYSIS; EFFICIENCY; TILES;
D O I：
10.1016/j.powtec.2015.01.076
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The aim of this work was to study the effect of sintering temperature on the photocatalytic activity of anatase ceramic glazes. The glazes were obtained by the addition of titania in two commercial ceramic fits. After mixing, the glazes were sprayed on ceramic tiles, which were fired between 850 and 1000 degrees C. The glaze surfaces were characterized by scanning electron microscopy and X-ray diffraction. The microstructural analysis showed that the anatase particles can be well dispersed and fixed by the glaze on the tile surfaces. The X-ray diffraction shows that at 850 degrees C the anatase particles are transformed into rutile. None of the glazes have shown expressive photocatalytic activity due to the transformation of anatase into rutile. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：60 / 65
页数：6
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