Water treatment with exceptional virus inactivation using activated carbon modified with silver (Ag) and copper oxide (CuO) nanoparticles
| Autor: | Quelen Letícia Shimabuku, Priscila Ferri Coldebella, Marcela Fernandes Silva, Rosangela Bergamasco, Tânia Ueda-Nakamura, Flávia Sayuri Arakawa, Márcia Regina Fagundes-Klen |
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| Rok vydání: | 2016 |
| Předmět: |
Copper oxide
Silver Scanning electron microscope Inorganic chemistry chemistry.chemical_element Nanoparticle Metal Nanoparticles 02 engineering and technology 010501 environmental sciences 01 natural sciences Nanomaterials Water Purification chemistry.chemical_compound Specific surface area Zeta potential medicine Environmental Chemistry Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Chemistry General Medicine 021001 nanoscience & nanotechnology Copper Charcoal Nanoparticles Virus Inactivation 0210 nano-technology Nuclear chemistry Activated carbon medicine.drug |
| Zdroj: | Environmental technology. 38(16) |
| ISSN: | 1479-487X |
| Popis: | Continuous flow experiments (450 mL min−1) were performed in household filter in order to investigate the removal and/or inactivation of T4 bacteriophage, using granular activated carbon (GAC) modified with silver and/or copper oxide nanoparticles at different concentrations. GAC and modified GAC were characterized by X-ray diffractometry, specific surface area, pore size and volume, pore average diameter, scanning electron microscopy, transmission electron microscopy, zeta potential and atomic absorption spectroscopy. The antiviral activity of the produced porous media was evaluated by passing suspensions of T4 bacteriophage (∼105 UFP/mL) through filters. The filtered water was analyzed for the presence of the bacteriophage and the release of silver and copper oxide. The porous media containing silver and copper oxide nanoparticles showed high inactivation capacity, even reaching reductions higher than 3 log. GAC6 (GAC/Ag0.5%Cu1.0%) was effective in the bacteriophage inactivation, reaching 5.53 l... |
| Databáze: | OpenAIRE |
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