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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 8
BKCSDE 30(8)
August 20, 2009 

 
Title
Synthesis of Nanocrystalline ZnFe2O4 by Polymerized Complex Method for its Visible Light Photocatalytic Application: An Efficient Photo-oxidant
Author
Jum Suk Jang, Pramod H Borse, Jae Sung Lee, Ok Sang Jung, Chae Ryong Cho, Euh Duck Jeong, Myoung Gyu Ha, Mi Sook Won, Hyun Gyu Kim*
Keywords
Zinc ferrites, Nano-particles, Polymerized complex method, Photocatalytic activity
Abstract
Nanocrystalline ZnFe2O4 oxide-semiconductor with spinel structure was synthesized by the polymerized complex (PC) method and investigated for its photocatalytic and photoelectric properties. The observation of a highly pure phase and a lower crystallization temperature in ZnFe2O4 made by PC method is in total contrast to that was observed in ZnFe2O4 prepared by the conventional solid-state reaction (SSR) method. The band gap of the nanocrystalline ZnFe2O4 determined by UV-DRS was 1.90 eV (653 nm). The photocatalytic activity of ZnFe2O4 prepared by PC method as investigated by the photo-decomposition of isopropyl alcohol (IPA) under visible light (≥ 420 nm) was much higher than that of the ZnFe2O4 prepared by SSR as well as TiO2-xNx. High photocatalytic activity of ZnFe2O4 prepared by PC method was mainly due to its surface area, crystallinity and the dispersity of platinum metal over ZnFe2O4.
Page
1738 - 1742
Full Text
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