Synthesis, Characterization, and Photocatalytic Activity of Sr2+ Doped TiO2 Nanoplates

被引：112

作者：

Kumaresan, L. ^{[1
]}

Mahalakshmi, M. ^{[2
]}

Palanichamy, M. ^{[1
]}

Murugesan, V. ^{[1
]}

机构：

[1] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India

[2] SSN Coll Engn, Dept Chem, Kalavakkam 603110, India

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2010年 / 49卷 / 04期

关键词：

PHOTODEGRADATION; COMPOSITE; H-2;

D O I：

10.1021/ie901191z

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Strontium doped titania (TiO2) nanoplates and titania nanoparticles were synthesized by sol-gel method. The characterization of the materials revealed the mesoporous nanoplate-like structure for Sr2+ doped TiO2. The thickness and edge length of Sr2+ doped TiO2 nanoplates were found to be 12 nm and 25-75 nm, respectively. TiO2 nanoparticles and Sr2+ doped TiO2 nanoplates showed higher surface area due to the presence of mesopores. The photocatalytic activity of TiO2 nanoparticles and Sr2+ doped TiO2 nanoplates was evaluated using 2,4-dinitrophenol (DNP) as a model pollutant. The photocatalytic activity of Sr2+ doped TiO2 nanoplates was higher than both TiO2 nanoparticles and commercial TiO2 (Degussa P-25). Sr2+ doped TiO2 nanoplates exhibited enhanced photocatalytic activity due to increases in the band gap energy and surface area.

引用

页码：1480 / 1485

页数：6

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