tarek_ali

Tarek T. Ali

Professor - Professor

Faculty of science

Address: Chemistry Department, Faculty of Science, Sohag University, Sohag, P.O.Box 82524, Egypt

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Publications Which contain the keyword: Nanocomposite

Template Assisted Microwave Synthesis of rGO-ZrO2 Composites: Efficient Photocatalysts Under Visible Light

2019-02-05 22:10:55 Keywords rGO-ZrO2, Nanocomposite, Microwave Synthesis, Photocatalytic Degradation, Crystal Violet, Visible Light.,
Template Assisted Microwave Synthesis of rGO-ZrO2 Composites: Efficient Photocatalysts Under Visible Light
In this research, cetyltetraethyl ammonium bromide template assisted microwave procedure was utilized to synthesize reduced graphene oxide-zirconia (rGO-ZrO2) nanocomposites by varying the rGO composition (1, 2, 5 and 10 wt%). The physico-chemical characteristics of the nanocomposites were studied using X-ray diffraction (XRD), Raman, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), diffusive reflectance ultraviolet-visible (DRUV-vis), X-ray photoelectron spectroscopy (XPS) and ... Read more

Synthesis of novel ZrO 2 &GO@ TiO 2 nanocomposite as an efficient photoanode in dye-sensitized solar cells

2018-10-18 08:51:31 Keywords Nanocomposite,
Synthesis of novel ZrO 2 &GO@ TiO 2 nanocomposite as an efficient photoanode in dye-sensitized solar cells
Due to the physicochemical and photo-electro properties, TiO2 nanostructures still being the outstanding photoanode materials in the dye-sensitized solar cells (DSCs). However, it is well known that a low dye-loading and charge recombination constrain the limitation of large-scale application. This work introduces the synthesis of ZrO2&GO@TiO2 nanofibers (NFs) by facile two steps using electrospinning and hydrothermal treatment. Furthermore, the developed ... Read more

Porous LaFeO3/Silica Nanocomposites via Sol-Gel Mixing InvolvingCitric Acid

2018-10-18 09:52:56 Keywords perovskite, mixed oxides, Nanocomposite, porosity,
Porous LaFeO3/Silica Nanocomposites via Sol-Gel Mixing InvolvingCitric Acid
oxidenanocompositePorositya b s t r a c tA series of 10, 20 and 30% (w/w) La2O3-Fe2O3/silica composites were synthesized by mixing of La-Fecitrate complex gels with spherical silica sols. This was followed by calcination of the formed xerogelat 550◦C and 750◦C for 3 h. The materials were characterized by XRD, simultaneous thermal analyses(TGA-DTA), FTIR, N2gas adsorption/desorption isotherms at −196◦C, and ... Read more

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