Correlating Photoluminescence and Photocatalytic Activity of Mixed-phase Nanocrystalline Titania

被引：77

作者：

Baiju, K. V. ^{[1
]}

Zachariah, A. ^{[1
]}

Shukla, S. ^{[1
]}

Biju, S. ^{[2
]}

Reddy, M. L. P. ^{[2
]}

Warrier, K. G. K. ^{[1
]}

机构：

[1] CSIR, NIIST, MMD, Ceram Technol Dept, Thiruvananthapuram 695019, Kerala, India

[2] CSIR, NIIST, CSTD, Thiruvananthapuram 695019, Kerala, India

来源：

CATALYSIS LETTERS | 2009年 / 130卷 / 1-2期

关键词：

Nanocrystalline; Photocatalytic activity; Photoluminescence; Sol-gel; Titania; TIO2; DIOXIDE;

D O I：

10.1007/s10562-008-9798-5

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：

Mixed-phase nanocrystalline titania with varying rutile-content has been synthesized via solvent mixing and calcination treatment of sol-gel derived nanocrystalline anatase and rutile precursors. The mixed-phase nanocrystalline titania has been characterized using different analytical techniques for analyzing their phase contents, nanocrystallite size distribution, band-gap, and photoluminescence. The photocatalytic activity of mixed-phase nanocrystalline titania has been studied by monitoring the degradation of methylene blue dye in an aqueous solution under ultraviolet-radiation exposure. A strong correlation between photoluminescence and photocatalytic activity has been demonstrated for the mixed-phase nanocrystalline titania.

引用

页码：130 / 136

页数：7

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