Preparation and photocatalytic properties of hexagonal-shaped ZnO:Sm3+ by microwave-assisted hydrothermal method

被引：10

作者：

Carvalho, R. G. ^{[1
]}

Tavares, M. T. S. ^{[2
]}

Oliveira, F. K. F. ^{[1
]}

Nascimento, R. M. ^{[1
]}

Longo, E. ^{[3
]}

Li, M. S. ^{[4
]}

Paskocimas, C. A. ^{[1
]}

Bomio, M. R. D. ^{[1
]}

Motta, F. V. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, LSQM, DEMAT, Av Sen Salgado Filho 3000, BR-59072970 Natal, RN, Brazil

[2] IFBA, Campus Feira de Santana, BR-44096486 Salvador, BA, Brazil

[3] Univ Fed Sao Carlos, LIEC, DQ, Via Washington Luiz,Km 235, BR-13565905 Sao Carlos, SP, Brazil

[4] Univ Sao Paulo, IFSC, Av Trabalhador Sao Carlense, BR-13566590 Sao Carlos, SP, Brazil

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

DOPED ZNO; LATTICE EXPANSION; DEGRADATION; OXIDE; NANOSTRUCTURES; NANOPARTICLES; PERFORMANCE;

D O I：

10.1007/s10854-017-6496-3

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Novel 3D rods ZnO:Sm monophasic microcrystals have been synthesized by the microwave-assisted hydrothermal (MAH) method at 140 degrees C for 10 min. The experimental results revealed that concentration of samarium have a significant influence on the band gap and photocatalysis. On the other hand, the samarium in the ZnO semiconductor structure increases photodegradation activity. ZnO sample doped with 8% Sm3+ exhibited the best activity in the photodegradation of methylene blue dye when compared to that doped with 0-4 mol%. Enhanced photocatalytic activity was attributed to samarium, which inhibits the recombination of electron-hole pairs.

引用

页码：7943 / 7950

页数：8

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