Facile synthesis and optical properties of Co3O4 nanostructures by the microwave route

被引：131

作者：

Al-Tuwirqi, Reem ^{[1
]}

Al-Ghamdi, A. A. ^{[1
]}

Aal, Nadia Abdel ^{[2
]}

Umar, Ahmad ^{[3
]}

Mahmoud, Waleed E. ^{[1
]}

机构：

[1] King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah, Saudi Arabia

[2] Suez Canal Univ, Fac Sci, Dept Chem, Ismailia, Egypt

[3] Najran Univ, CAMNE, Najran 11001, Saudi Arabia

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2011年 / 49卷 / 04期

关键词：

Microwave synthesis; Metal oxide nanostructure; Nanoplatelets; Optical properties; MAGNETIC-PROPERTIES; NANOPARTICLES; OXIDE;

D O I：

10.1016/j.spmi.2010.12.010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cobalt oxide (Co3O4) nanoplatelet shape like nanostructures have been successfully synthesized through a simple microwave route for the first time using cobalt acetate, NaOH and citric acid at 200 degrees C for 30 min. The structure and morphology of as-prepared Co3O4 nanoplatelets are characterized by means of powder X-ray diffraction (XRD). Fourier transform infrared spectrum (FTIR), and scanning electron microscope (SEM). XRD measurements indicate that the product has a perfect crystalline cubic phase of Co3O4 with a lattice constant a = 8.082 angstrom. The SEM images show that the obtained Co3O4 nanopowder consists of nanoplatelets with diameter 125 nm and thickness 20 nm. Energy-dispersive X-ray spectroscopy (EDS) show that the composition of Co3O4 is stoichiometric. Room temperature photoluminescence measurement is exhibited by a strong UV emission and a suppressed green emission, confirming the good optical properties for the as-prepared Co3O4 nanoplatelets. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：416 / 421

页数：6

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