Photoactive transparent nano-crystalline glass-ceramic for remazole red dye degradation

被引：16

作者：

Gad-Allah, Tarek A. ^{[1
]}

Margha, Fatma H. ^{[2
]}

机构：

[1] Natl Res Ctr, Water Pollut Res Dept, Cairo 12311, Egypt

[2] Natl Res Ctr, Dept Glass Res, Cairo 12311, Egypt

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 12期

关键词：

Glass; Ceramic; Nanostructures; Optical materials; Semiconductors; CROSS-FLOW MICROFILTRATION; PHOTOCATALYTIC OXIDATION; SOLAR PHOTOCATALYSIS; TITANIUM-DIOXIDE; TIO2; PARTICLES; WASTE-WATER; DECONTAMINATION; STABILITY; MEMBRANES; CARBON;

D O I：

10.1016/j.materresbull.2012.08.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transparent glass ceramic material was prepared from alkali-borosilicate glass containing titania by proper heat treatment scheme. The prepared samples were characterized using differential thermal analysis, X-ray diffraction, transmission electron microscope, selected area electron diffraction and UV-visible spectroscopy. The applied heat treatment program allowed the crystallization of nano-crystalline anatase, rutile, barium titanate, titanium borate and silicate phases while maintaining the transparency. The precipitated nano-crystalline anatase and rutile phases were responsible for the observed high photocatalytic activity of the prepared samples. Samples of 24.29 and 32.39 TiO2 wt% showed better efficiency for the decolorization of remazole red dye compared with commercial-TiO2 used in preparation of glass-ceramic. The reuse of prepared glass-ceramic photocatalyst with nearly same efficiency for different times was also proved. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：4096 / 4100

页数：5

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