Synthesis, characterization and photocatalytic properties of alkali metals doped tin dioxide

被引：12

作者：

Benhebal, Hadj ^{[1
]}

Chaib, Messaoud ^{[1
]}

Leonard, Angelique ^{[2
]}

Lambert, Stephanie D. ^{[2
]}

Crine, Michel ^{[2
]}

机构：

[1] Univ Tiaret, Lab Chim & Environm, Tiaret 14000, Algeria

[2] Univ Liege, Lab Genie Chim, B-4000 Liege, Belgium

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2011年 / 1004卷 / 1-3期

关键词：

Tin dioxide; Sol-gel; Alkali metals; Photocatalysis; Aromatic compounds; TIO2; DEGRADATION; ZNO; SIZE; CATALYSIS; POWDERS; NB2O5; LAYER; FILMS; PURE;

D O I：

10.1016/j.molstruc.2011.08.009

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：

In order to improve the photocatalytic properties of tin dioxide, crystallized powders of SnO2 photocatalysts doped by alkali metals (Li, Na and K) were synthesized by sol-gel process. The physical properties of these materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, Scanning electron microscopy and Ultraviolet-visible diffuse reflection spectroscopy. The photocatalytic tests under UV radiation conducted on four aromatic compounds (phenol, paranitrophenol, pentachlorophenol and benzoic acid) showed that tin dioxide modified by sodium possesses good photocatalytic activity; The Li-doped SnO2 is moderately active, while modification by potassium does not improve this activity. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：222 / 226

页数：5

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