Chinese Journal of Applied Chemistry

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Preparation of NiO Nanoparticles Supported on SBA-15 Mesoporous Molecular Sieve Modified by Schiff Base Monomer

YU Longbao*, XU Hu, SHI Yayu, ZHANG Wenpeng, YIN Hengbo, ZHANG Xiongfei   

  1. (School of Chemistry and Chemical Engineering,Jiangsu Uiniversity,Zhenjiang 212012,China)
  • Received:2012-12-21 Revised:2013-01-30 Published:2013-10-10 Online:2013-10-10

Abstract: With copolymeric modification by Schiff base monomer, NiO nanoparticles supported on SBA-15 mesoporous molecular sieves were prepared and characterized by powder X-ray diffraction(XRD), UV-Vis spectrometer, high resolution transmission electron microscopy(HRTEM) and N2 adsorption-desorption isotherms. The results show that the as-prepared samples possess a bi-dimensional P6mm hexagonal symmetry of the pores and the formed NiO nanoparticles are mainly dispersed into channels of SBA-15. When the loadings of Schiff base monomer are less than 10%, the pore diameter is in the range of 6~8 nm. Increasing the loading of Schiff base monomer up to 15%, the channels of SBA-15 are severely blocked by encapsulated NiO nanoparticles and the pore diameter is reduced to 3.8 nm. In addition, NiO nanoparticle size increases with increasing Schiff base monomer loading.

Key words: mesoporous molecular sieve, Schiff base, nickle oxide, nanoparticle

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