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Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, P.O. Box 9004, Saudi Arabia E-mail : abul_k33@yahoo.com Unit of Science and Technology, Faculty of Science, King Khalid University, Abha 61413, P.O. Box 9004, Saudi Arabia Center of Excellence for Advanced Materials Research, King Khalid University, Abha 61413, P.O. Box 9004, Saudi Arabia Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi-110 025, India Manuscript received online 20 March 2014, revised 24 April 2014, accepted 25 April 2014 Well dispersed spinel cobalt ferrite nanoparticles have been synthesized successfully through hydrothermal method in one step. The structure, morphology and properties of the nanoparticles were characterized by X-ray diffraction, transmission electron microscopy and ultraviolet-visible spectroscopy. Transmission electron microscopic studies show that spinel cobalt ferrite nanoparticles are uniform with an average size of 10–15.7 nm. The optical band gap are equal to 2.3, 2.35 and 2.4 eV for CoFe2O4 obtained by using UV-Visible spectroscopy which may have visible-light photo activity. |
