Evidence of upconversion luminescence contribution to the improved photoactivity of erbium doped TiO2 systems

被引：86

作者：

Obregon, S. ^{[1
]}

Colon, G. ^{[1
]}

机构：

[1] Univ Seville, CSIC, Inst Ciencia Mat Sevilla, Ctr Mixto, Seville 41092, Spain

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 63期

关键词：

PHOTOCATALYTIC ACTIVITY; EFFICIENT;

D O I：

10.1039/c2cc33391k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Er3+-TiO2 synthesized by a surfactant free hydrothermal method exhibits good photoactivities under sun-like excitation for the degradation of phenol. The presence of Er3+ does not affect the structural and morphological features of the TiO2 significantly. The best photocatalytic performance was attained for the samples with 2 wt% of Er. Different photocatalytic runs indicated that the incorporation of the Er3+ cation would be responsible for the enhanced photocatalytic activity, which participates in different mechanisms under UV and NIR excitation.

引用

页码：7865 / 7867

页数：3

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