Recent advancements in supporting materials for immobilised photocatalytic applications in waste water treatment
| Autor: | B. Srikanth, K. P. Gopinath, A. Ramprasath, R. Goutham, R. Badri Narayan, A.R. Sankaranarayanan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
Materials science 02 engineering and technology Thermal treatment Management Monitoring Policy and Law Wastewater 010402 general chemistry 01 natural sciences Dip-coating Catalysis Water Purification Electrophoretic deposition Ceramic Waste Management and Disposal Sol-gel chemistry.chemical_classification Titanium Waste management Water General Medicine Polymer 021001 nanoscience & nanotechnology Casting 0104 chemical sciences Chemical engineering chemistry visual_art visual_art.visual_art_medium Photocatalysis 0210 nano-technology Water Pollutants Chemical |
| Zdroj: | Journal of environmental management. 200 |
| ISSN: | 1095-8630 |
| Popis: | The aim of this paper is to provide a review on the usage of different anchoring media (supports) for immobilising commonly employed photocatalysts for degradation of organic pollutants. The immobilisation of nano-sized photocatalysts can eliminate costly and impractical post-treatment recovery of spent photocatalysts in largescale operations. Some commonly employed immobilisation aids such as glass, carbonaceous substances, zeolites, clay and ceramics, polymers, cellulosic materials and metallic agents that have been previously discussed by various research groups have been reviewed. The study revealed that factors such as high durability, ease of availability, low density, chemical inertness and mechanical stability are primary factors responsible for the selection of suitable supports for catalysts. Common techniques for immobilisation namely, dip coating, cold plasma discharge, polymer assisted hydrothermal decomposition, RF magnetron sputtering, photoetching, solvent casting, electrophoretic deposition and spray pyrolysis have been discussed in detail. Finally, some common techniques adopted for the characterisation of the catalyst particles and their uses are also discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect