Ali Hossein Kianfar - Department of Chemistry, Isfahan University of Technology, Isfahan, Iran, ۸۴۱۵۶-۸۳۱۱۱
Parisa Montazeri Najafabadi - Department of Chemistry, Isfahan University of Technology, Isfahan, Iran, ۸۴۱۵۶-۸۳۱۱۱
Maryam Sedighipoor - Department of Chemistry, Isfahan University of Technology, Isfahan, Iran, ۸۴۱۵۶-۸۳۱۱۱
Mohammad Mohsen Momeni - Department of Chemistry, Isfahan University of Technology, Isfahan, Iran, ۸۴۱۵۶-۸۳۱۱۱
Helmar Görls - Institute of Inorganic and Analytical Chemistry, Chair of Inorganic Chemistry II, Friedrich Schiller University Jena, Humboldtstr. ۸, ۰۷۷۴۳ Jena, Germany
Winfried Plass - Institute of Inorganic and Analytical Chemistry, Chair of Inorganic Chemistry II, Friedrich Schiller University Jena, Humboldtstr. ۸, ۰۷۷۴۳ Jena, Germany
Gholamhossein Mohammadnezhad - Department of Chemistry, Isfahan University of Technology, Isfahan, Iran, ۸۴۱۵۶-۸۳۱۱۱

Two novel heterocyclic Schiff base complexes ([VOL۱(DMF)] [H۲L۱ = (E)-۱-((۲-amino-۵-nitrophenyl)imino-methyl) naphthalen-۲-ol] and [VO۲L۲] [H۲L۲ = [(E)-۱-((۲-aminoethyl) imino-methyl)naphthalen-۲-ol]) were synthesized and FT-IR, elemental analysis and UV-Vis spectroscopy were used to fully characterize them. Single-crystal X-ray diffraction was used to determine the structure of the [VO۲L۲] complex, in which the coordination around the vanadium ion is best described as distorted square pyramidal. The basal plane is formed by the donor atoms (NNO) of the Schiff base ligand and one of the oxo groups while the apical position is occupied by the other oxo group in the structure. The Schiff base complexes were loaded over TiO۲ photocatalyst and calcined at ۴۵۰°C. The MOX/TiO۲ structure and morphology were characterized by FT-IR, scanning electron microscopy (SEM), X-ray diffraction (XRD), EDX and solid state UV-Vis absorption. Photocatalytic oxidation of methyl orange (MO) and methylene blue (MB) dyes in aqueous media by solar and visible lights was used to evaluate the photocatalytic efficiency of MOX/TiO۲ semi-conducting nanoparticles. The incorporation of these complexes enhanced TiO۲ activation with visible light compared with naked TiO۲, according to the results.

Schiff base, X-ray diffraction, Photocatalytic efficiency, Methylene blue, Methyl Orange