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Synthesis and characterisation of photocatalytic materials and photocatalytic test for water and air depollution

Advanced Oxidation Processes (AOPs) are nowadays deeply investigated for environmental applications, especially for air and water quality. Photocatalytic materials catalyse the mineralisation of a wide range of organic and inorganic pollutants, producing, as final product, water, carbon dioxide and inert inorganic salts.

Depending on the application, photocatalytic materials can be obtained as thin film (see the topic Deposition and characterisation of multi-functional layers by vapour phase chemical methods) or as powder. The synthesis of photocatalytic powder, mainly based on titanium dioxide, also doped with suitable doping elements, with specific dimension (nano- or micro-powder) and physico-chemical properties (composition and specific crystallographic phase), is carried out by means of wet processes, starting from aqueous solutions.
The characterisation of the obtained products is carried out by means of suitable analytical techniques. The photocatalytic materials are investigated from morphological, physical and chemical point of view. The photocatalytic properties, finally, are evaluated by means of specific tests in water suspension or deposited as a paint with respect to suitable lighting sources in UV and visible range (UV 254 nm and 370 nm lamps, Xenon lamp, fluorescent and LED lamps) and with respect to ISO normative.


  • RECENT PUBLICATIONS:
    • A. Galenda, L. Crociani, N. El Habra, M. Favaro, M.M. Natile, G.L. Rossetto
      Effect of reaction conditions on Methyl Red degradation mediated by boron and nitrogen doped TiO2
      Applied Surface Science. 2014, 314, 919