Nanosized Powders as Reinforcement for Photoactive Composites (Overview)
| Autor: | M. N. Zahornyi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Absorption spectroscopy Hydrogen Composite number Metals and Alloys Oxide chemistry.chemical_element 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Mechanics of Materials Materials Chemistry Ceramics and Composites Photocatalysis Composite material 0210 nano-technology Visible spectrum |
| Zdroj: | Powder Metallurgy and Metal Ceramics. 56:130-147 |
| ISSN: | 1573-9066 1068-1302 |
| DOI: | 10.1007/s11106-017-9880-x |
| Popis: | Composite TiO2-based photocatalysts are studied. They increase the efficiency of water and air purification from toxic organic impurities and allow the synthesis of hydrogen by water photolysis and CO2 reduction to methane and its homologues. These processes are of huge scientific and practical interest because they are aimed at solving global energy conservation problems. The latest achievements in the production of composites with various polymer matrices and nanosized oxide particles are demonstrated. The properties of these materials and their potential applications are described. An alternative option is considered, such as modification of nanosized particles by substances of different natures, to improve the photocatalytic properties of TiO2 and shift the absorption spectrum into the visible light region. The positive and negative effects of impurities introduced into the TiO2 structure on the photocatalytic activity are addressed. The study of various additives influencing the optical and photocatalytic properties of TiO2 is among the priority areas in modern photochemistry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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