Synthesis, optical and magnetic behavior of (BiFeO3)1-x(α-Fe2O3)x nanocomposites

被引：14
作者：
Baqiah, H. [1 ]
Talib, Z. A. [1 ]
Shaari, A. H. [1 ]
Tamchek, N. [1 ]
Ibrahim, N. B. [2 ]
机构：
[1] Univ Putra Malaysia, Phys Dept, Fac Sci, Serdang 43400, Selangor, Malaysia
[2] Univ Kebangsaan Malaysia, Sch Appl Phys, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2018年 / 231卷
关键词：
BiFeO3; alpha-Fe2O3; Nanocomposite; Microstrain; Band gap; Magnetization; ALPHA-FE2O3; NANOPARTICLES; PHOTOCATALYTIC PROPERTIES; THIN-FILMS; BIFEO3; PHOTOLUMINESCENCE; NANOSTRUCTURES; ENHANCEMENT; INTERFACE;
D O I：
10.1016/j.mseb.2018.03.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
(BiFeO3)(1-x)(alpha-Fe2O3)(x) nanocomposites were synthesized from dried gels of BiFeO3 and alpha-Fe2O3. Samples with x = (0.00 (BiFeO3), 0.25, 0.50 and 1.00 (alpha-Fe2O3)) were studied using X-rays diffractions (XRD), UV-vis spectroscopy, photoluminescence spectroscopy (PL), electron spin resonance (ESR) and vibrating sample magnetometer (VSM). Amounts of alpha-Fe2O3 phase were 23 and 35% for samples x = 0.25 and 0.50, respectively. Microstrain of BiFeO3 phase tended to decrease with increasing alpha-Fe2O3. Optical band gap reduced from 2.42 eV for BiFeO3 to 2.35 eV for sample x = 0.25 and then increased to 2.56 eV for sample x = 0.50. From PL, intensity of near band emission peak of BiFeO3 increased with increasing alpha-Fe2O3 content. From ESR and VSM, the g value and magnetization saturation were enhanced with embedding of alpha-Fe2O3 into BiFeO3.
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收藏
页码：5 / 10
页数：6
相关论文
共 49 条
[1]   Structural, dielectric, magnetic, and optical properties of Ni0.75Zn0.25Fe2O4-BiFeO3 composites [J].
Adhlakha, Nidhi ;
Yadav, K. L. .
JOURNAL OF MATERIALS SCIENCE, 2014, 49 (13) :4423-4438
[2]   Novel peanut-like α-Fe2O3 superstructures: Oriented aggregation and Ostwald ripening in a one-pot solvothermal process [J].
An, Zhenguo ;
Zhang, Jingjie ;
Pan, Shunlong ;
Song, Guangzhi .
POWDER TECHNOLOGY, 2012, 217 :274-280
[3]   Growth of three-dimensional flower-like SnS2 on g-C3N4 sheets as an efficient visible-light photocatalyst, photoelectrode, and electrochemical supercapacitance material [J].
Ansari, Sajid Ali ;
Cho, Moo Hwan .
SUSTAINABLE ENERGY & FUELS, 2017, 1 (03) :510-519
[4]   Facile and sustainable synthesis of carbon-doped ZnO nanostructures towards the superior visible light photocatalytic performance [J].
Ansari, Sajid Ali ;
Ansari, S. G. ;
Foaud, H. ;
Cho, Moo Hwan .
NEW JOURNAL OF CHEMISTRY, 2017, 41 (17) :9314-9320
[5]   Simple and Large Scale Construction of MoS2-g-C3N4 Heterostructures Using Mechanochemistry for High Performance Electrochemical Supercapacitor and Visible Light Photocatalytic Applications [J].
Ansari, Sajid Ali ;
Cho, Moo Hwan .
SCIENTIFIC REPORTS, 2017, 7
[6]   Electron spin resonance probed enhanced magnetization and optical properties of Sm doped BiFeO3 nanoparticles [J].
Arora, Manisha ;
Kumar, Manoj .
MATERIALS LETTERS, 2014, 137 :285-288
[7]   Chemistry of the Fe2O3/BiFeO3 Interface in BiFeO3 Thin Film Heterostructures [J].
Arredondo, Miryam ;
Ramasse, Quentin M. ;
Bogle, Kashinath ;
Nagarajan, Valanoor .
MATERIALS, 2010, 3 (12) :5274-5282
[8]   Size Effect on Optical and Photocatalytic Properties in BiFeO3 Nanoparticles [J].
Bai, Xiaofei ;
Wei, Jie ;
Tian, Bobo ;
Liu, Yang ;
Reiss, Thomas ;
Guiblin, Nicolas ;
Gemeiner, Pascale ;
Dkhil, Brahim ;
Infante, Ingrid C. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2016, 120 (07) :3595-3601
[9]   Electrical transport, microstructure and optical properties of Cr-doped In2O3 thin film prepared by sol-gel method [J].
Baqiah, H. ;
Ibrahim, N. B. ;
Abdi, M. H. ;
Halim, S. A. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 575 :198-206
[10]   Fine Dispersion of BiFeO3 Nanocrystallites Over Highly Ordered Mesoporous Silica Material and Its Photocatalytic Property [J].
Bhunia, Manas K. ;
Das, Swapan K. ;
Dutta, Arghya ;
Sengupta, Ananya ;
Bhaumik, Asim .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2013, 13 (04) :2557-2565
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