Abstract: Facile in-situ synthesis and characterization of stable Ag3PO4/TiO2 nanoparticles and their effectiveness for visible light photocatalysis has been reported. The surface morphology, crystal structure and chemical properties of the photocatalyst were characterized by using UV-vis-NIR spectroscopy, FSEM, XRD, XPS, TEM and nitrogen physisorption. The synthesized nanoparticles were polycrystalline with calculated energy band gap in the range of 2.3-2.5 eV. Deposition of Ag3PO4 over the surface of TiO2 resulted in stability increase and a significant shift in the UV absorption spectrum towards visible region. The photocatalytic experiments were performed under 112 W visible light irradiation (λ > 400 nm). The catalyst showed complete degradation of 15 mg/L 2-CP within 120 minutes while 92.5 % degradation of 25 mg/L 2-CP was achieved under optimized conditions. The study confirmed that Ag3PO4 /TiO2 has high potential for degradation of 2-CP from wastewater under visible-light irradiation.

• Publication Date: 17-Nov-2014
• DOI: 10.15224/978-1-63248-053-8-120
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Abstract: Next to the hydrophilic surfaces, it is found existence of solute-free interfacial zones i.e. exclusion zones. It appears that their properties and structure are different than those in bulk water, and that their width can be up to several hundreds of micrometers. In this research is examined solution of hydrogenized carbon nanoparticles in which are added microspheres in order to observe if there will be exclusion of particles next to the nafion. It was shown in researches till now that exclusion zones develop near different physiological regions. The goal was to show that it will appear in presence of hydrogenized carbon nanoparticles.

• Publication Date: 17-Nov-2014
• DOI: 10.15224/978-1-63248-053-8-121
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