Design and Synthesis of a Visible Light Driven Photocatalyst LaCo0.5Ti0.5O3 with ABO3-type Perovskite Structure

Chem. J. Chinese Universities

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Design and Synthesis of a Visible Light Driven Photocatalyst LaCo_0.5Ti_0.5O₃ with ABO₃-type Perovskite Structure

YANG Li-Bin^1,2, JING Li-Qiang¹, LI Shu-Dan¹, JIANG Bao-Jiang¹, FU Wei¹, FU Hong-Gang¹

1. Laboratory of Physical Chemistry, School of Chemistry and Material Sciences,Heilongjiang University, Harbin 150080, China;
2. College of Chemistry and Pharmacology, Jiamusi University, Jiamusi 154007, China

Received:2006-09-28 Revised:1900-01-01 Online:2007-03-10 Published:2007-03-10
Contact: JING Li-Qiang

Abstract

Abstract: A novel ternary metal complex oxide, LaCo_0.5Ti_0.5O₃, with ABO₃-type perovskite structure was designed and synthesized by a sol-gel method at relatively low temperature, and were characterized by means of several testing techniques such as TG-DTA, XRD, XPS and UV-Vis DRS spectra. The results show that, compared with LaCoO₃ and La₂Ti₂O₇, the as-prepared sample exhibits a higher photocatalytic activity under visible light irradiation, and can be obtained at lower temperature. It can be proposed that the charge compensation effects make Co²⁺ and Ti⁴⁺ ions in raw material co-occupy uniformly B site in perovskite both as the forms of +3 valence, which is responsible for the lower temperature synthesis.

Key words: Perovskite, LaCo_0.5Ti_0.5O₃, Sol-gel method, Visible light photocatalysis

CLC Number:

O614
O643.36

TrendMD:

YANG Li-Bin^1,2, JING Li-Qiang¹, LI Shu-Dan¹, JIANG Bao-Jiang¹, FU Wei¹, FU Hong-Gang¹. Design and Synthesis of a Visible Light Driven Photocatalyst LaCo_0.5Ti_0.5O₃ with ABO₃-type Perovskite Structure[J]. Chem. J. Chinese Universities, doi: .

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Design and Synthesis of a Visible Light Driven Photocatalyst LaCo_0.5Ti_0.5O₃ with ABO₃-type Perovskite Structure

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