Synthesis, Characterization and Photocatalytic application of La-SiO2@SeO2-MCM-41 Core-Shell Nanostructure
Paper ID : 1310-ICNS
Authors:
Samaneh Esmaeili *1, Mohammad Ali Zanjanchi1, Hossein Golmojdeh1, Shahab Shariati2
1University of Guilan
2Rasht Branch, Islamic Azad University
Abstract:
In current study a core-shell nanostructure was designed in order to combine the characteristics of mesoporous silica as a substrate with large values of surface area and selenium dioxide as a semiconductor with photocatalytic properties. To achieve the highest level of photocatalytic activation, La3+ cationes were introduced in core-shell particles to act as metallic dopants. It was revealed that La-SiO2@SeO2-MCM-41 can degrade 2,4-Dichlorophenol (DCP) as a model compound, completely in less than 30 min. It was found that presence of La in the core and SeO2 in the mesoporous shell, generate very efficient photocatalyst to enhance photodegradation of DCP dramatically. A series of analysis procedures and experiments were employed to investigate the structure and yield of prepared photocatalyst, that including X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Barrett-Joyner-Halenda (BJH) and energy-dispersive X-ray spectroscopy (EDS), Dynamic Light Scattering (DLS) were employed for characterization of the produced core-shell Nano structure
Keywords:
Core-shell; Photocatalysis; Lanthanum, MCM-41; Selenium dioxide
Status : Abstract Accepted (Poster Presentation)