Chemical Sciences Journal

Hosni A Gumaa

Publications

• Research Article
  Novel Synthesis of Nay Zeolite from Rice Husk Silica: Modification with Zno and Zns for Antibacterial Application
  Author(s): Tarek M Salama, Ibraheem O Ali, Hosni A Gumaa, Mohamed A Lateef and Mostafa F BakrTarek M Salama, Ibraheem O Ali, Hosni A Gumaa, Mohamed A Lateef and Mostafa F Bakr
  
  Zeolite Y in the sodium form (NaY) was synthesized using amorphous silica ash derived from waste rice husks under hydrothermal conditions. Structural characterization of NaY before and after modification with ZnO and ZnS has been done using powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption at -196 °C, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The effects of the Na2O/SiO2 and Si/Al ratios, aging temperature and crystallization time on the optimized synthesis of NaY were thoroughly investigated. Thus the regulated Na+ impurity concentration in the starting hydrogel was found to act as a template-assisted synthesis of zeolite NaY by the potential incorporation of Al atoms into the zeolite framework. Results of surface analyses indicate that the interactions of.. Read More»
  

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