Synthesis of TiO2 via hydrolysis of titanium tetraisopropoxide and its photocatalytic activity on a suspended mixture with activated carbon in the degradation of 2-naphthol

被引：58

作者：

Qourzal, S ^{[1
]}

Assabbane, A ^{[1
]}

Ait-Ichou, Y ^{[1
]}

机构：

[1] Univ Zohr, Fac Sci, Dept Chim, Euipe Photocatalyse & Environm,Lab Chim Phys, Agadir, Morocco

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 163卷 / 03期

关键词：

TiO2; preparation; activated carbon; photodegradation;

D O I：

10.1016/j.jphotochem.2003.12.013

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：

Titania (TiO2) photocatalysts are produced using hydrolysis of titanium tetraisopropoxide (TTIP) at 100-600 degreesC. The powders are characterized by thermogravimetric analysis (TGA), and X-ray diffraction (XRD). Anatase phase was obtained after calcination at 200 degreesC. The anatase-rutile transformation takes place at temperatures higher than 400 degreesC. Adding TiO2 powders prepared at 600 degreesC to activated carbon (AC), exhibits much higher photocatalytic activity than commercial TiO2 (Degussa P-25) alone in degradation of 2-naphthol under the UV-irradiation with O-2. This results shows that an optimum adsorption strength on the co-adsorbent (AC) is needed to improve titania's photoactivity in reactions of organic pollutant degradation in a shorter time. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：317 / 321

页数：5

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