Facile synthesis of mesoporous bicrystallized TiO2(B)/anatase (rutile) phases as active photocatalysts for nitrate reduction

被引：33
作者：
Mohamed, Mohamed Mokhtar [1 ]
Asghar, B. H. M.
Muathen, H. A.
机构：
[1] Benha Univ, Fac Sci, Dept Chem, Banha, Egypt
来源：
CATALYSIS COMMUNICATIONS | 2012年 / 28卷
关键词：
Nitrate photoreduction; Polymeric templates; Bicrystalline TiO2 (B)/anatase; Characterization; TITANIUM(IV) OXIDE PARTICLES; TIO2-B NANOWIRES; AQUEOUS SUSPENSION; ANATASE TIO2; CATALYSTS; NITROGEN; TITANIA; AMMONIA; DEGRADATION; NITRITE;
D O I：
10.1016/j.catcom.2012.08.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polyhedral and wormhole-like mesoporous titania nanoparticles composed of TiO2(B) and anatase (rutile) were successfully synthesized by hydrothermal self-assembly method employing, respectively polyacrylamide (AA), polyvinyl alcohol (VA) and polyoxyethyl lauryl ether (ELE) as templates. TEM, X-ray diffraction, FOR, UV-vis DR spectroscopy and N-2 sorptiometry were used for the characterization of surface morphology, phase composition, electronic properties and surface texturing of the synthesized catalysts. The photocatalytic activity was evaluated via the photo-reduction of nitrate in aqueous solution under UV light irradiation. The TiO2 catalyst derived from ELE presented the highest activity due to the alternate structure of anatase and TiO2(B) phases. (C) 2012 Elsevier B.V. All rights reserved.
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页码：58 / 63
页数：6
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