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

被引：11
|
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
收藏
页码：7943 / 7950
页数：8
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