Exalted photocatalytic activity of tetragonal BiVO4 by Er3+ doping through a luminescence cooperative mechanism

被引：78

作者：

Obregon, Sergio ^{[1
,2
]}

Lee, Soo W. ^{[2
]}

Colon, Gerardo ^{[1
]}

机构：

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

[2] Sun Moon Univ, Dept Mat Engn, Asan 336708, South Korea

来源：

DALTON TRANSACTIONS | 2014年 / 43卷 / 01期

关键词：

UP-CONVERSION LUMINESCENCE; HYDROTHERMAL SYNTHESIS; METAL-OXIDES; PERFORMANCE; ULTRAVIOLET; MICROWAVE; RE; PH;

D O I：

10.1039/c3dt51923f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Er-doped BiVO4 are synthesized by means of a surfactant free microwave assisted hydrothermal method having good photoactivities under sun-like excitation for the degradation of methylene blue. From the structural and morphological characterization, it has been stated that the presence of Er3+ induces a slight stabilization of the tetragonal phase, probably due to its incorporation in the BiVO4 lattice. The best photocatalytic performances were attained for the samples with Er3+ content higher than 3 at%. The occurrence of the Er3+ doped tetragonal BiVO4 clearly induces higher photocatalytic activities. The existence of a luminescence process has been related with the enhanced photoactivity observed.

引用

页码：311 / 316

页数：6

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