Articles
  • Preparation and characterization of Ag incorporated ZnWO4/zeolite composites by cyclic microwave metathetic method
  • Chang Sung Lima, Jeong Ho Ryub, Jong Geun Choia, Chong Yeon Parka and Won-Chun Oha,*
  • a Department of Advanced Materials Science & Engineering, Hanseo University, Seosan 356-706, Korea b R&D Institute, Samsung LED Co., LTD., 314, Maetan3-dong, Yeongtong-gu, Suwon 443-743, Korea
Abstract
A solid-state metathetic (SSM) route assisted by cyclic microwave irradiation was used to synthesize the Ag incorporated ZnWO4/zeolite composites under environmentally friendly conditions. The crystallized Ag incorporated ZnWO4/zeolite composites were formed at 600 oC for 3 h, showing a well immobilized morphology with sizes of 3-5 μm. The synthesized Ag incorporated ZnWO4/zeolite composites were characterized by scanning electron microscopy, energy-dispersed X-ray spectroscopy and Fourier transform infrared spectroscopy. Monoclinic-like crystals of ZnWO4 were primarily co-mixed with zeolite. Small spherical silver particles were immobilized in the ZnWO4/zeolite matrix.

Keywords: Solid-state metathetic synthesis, Ag, ZnWO4, Zeolite-A, Cyclic microwave irradiation.

This Article

  • 2011; 12(2): 218-221

    Published on Apr 30, 2011