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

被引：12

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

共 37 条

[1] Size effect on the lattice parameters of nanocrystalline anatase [J].

Ahmad, Md. Imteyaz ;

Bhattacharya, S. S. .

APPLIED PHYSICS LETTERS, 2009, 95 (19)

[2] EFFECT OF CRYSTAL SIZE-REDUCTION ON LATTICE SYMMETRY AND COOPERATIVE PROPERTIES [J].

AYYUB, P ;

PALKAR, VR ;

CHATTOPADHYAY, S ;

MULTANI, M .

PHYSICAL REVIEW B, 1995, 51 (09) :6135-6138

[3]

Azaroff L.V., 1968, ELEMENTS XRAY CRYSTA, P576

[4] Ultrasound assisted additive free synthesis of nanocrystalline zinc oxide [J].

Bhatte, Kushal D. ;

Fujita, Shin-Ichiro ;

Arai, Masahiko ;

Pandit, Anirudha B. ;

Bhanage, Bhalchandra M. .

ULTRASONICS SONOCHEMISTRY, 2011, 18 (01) :54-58

[5] DEPENDENCE OF LATTICE PARAMETER OF MAGNESIUM OXIDE ON CRYSTALLITE SIZE [J].

CIMINO, A ;

PORTA, P ;

VALIGI, M .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1966, 49 (03) :152-&

[6] Highly efficient photocatalyst based on Ce doped ZnO nanorods: Controllable synthesis and enhanced photocatalytic activity [J].

Faisal, M. ;

Ismail, Adel A. ;

Ibrahim, Ahmed A. ;

Bouzid, Houcine ;

Al-Sayari, Saleh A. .

CHEMICAL ENGINEERING JOURNAL, 2013, 229 :225-233

[7] Nano ZnO synthesis by modified sol gel method and its application in heterogeneous photocatalytic removal of phenol from water [J].

Hayat, Khizar ;

Gondal, M. A. ;

Khaled, Mazen M. ;

Ahmed, Shakeel ;

Shemsi, Ahsan M. .

APPLIED CATALYSIS A-GENERAL, 2011, 393 (1-2) :122-129

[8] Facile microwave hydrothermal synthesis of zinc oxide one-dimensional nanostructure with three-dimensional morphology [J].

Huang, Jianfeng ;

Xia, Changkui ;

Cao, Liyun ;

Zeng, Xierong .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 150 (03) :187-193

[9] Enhanced photocatalytic degradation of methylene blue using biologically synthesized "protein-capped" ZnO nanoparticles [J].

Jain, Navin ;

Bhargava, Aprit ;

Panwar, Jitendra .

CHEMICAL ENGINEERING JOURNAL, 2014, 243 :549-555

[10] Synthesis and Characterization of Rare Earth Ion Doped Nano ZnO [J].

John, Rita ;

Rajakumari, Rajaram .

NANO-MICRO LETTERS, 2012, 4 (02) :65-72

← 1 2 3 4 →