Research Regarding a Correlation Core–Shell Morphology–Thermal Stability of Silica–Silver Nanoparticles
| Autor: | Valentin Petrescu, Paraschiva Postolache, Calin Remus Cipaian, Narcisa Vrinceanu, Cristina Rîmbu, Dan Dumitru Dumitrascu |
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| Rok vydání: | 2015 |
| Předmět: |
Morphology (linguistics)
Chemistry General Chemical Engineering Core (manufacturing) Nanotechnology 02 engineering and technology General Chemistry Thermal treatment respiratory system 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silver nanoparticle 0104 chemical sciences Catalysis Nanomaterials Core shell Chemical engineering Thermal stability 0210 nano-technology |
| Zdroj: | Chemical Engineering Communications. 203:649-659 |
| ISSN: | 1563-5201 0098-6445 |
| DOI: | 10.1080/00986445.2015.1078795 |
| Popis: | Silica nanoparticles repeatedly inhaled lead to acute and chronic lung inflammation and finally to pulmonary fibrosis and lung cancer, people with chronic respiratory diseases like asthma or allergic rhinitis being even more susceptible to their toxic effects. In order to reduce these above-mentioned toxic effects, the aim of this study was to engineer the environmental silica nanoparticles with silver and subsequent thermal treatment. Nanometer-sized and spherical silica particles were synthesized in a homogeneous state, using a simple one-pot chemical method. An applicable approach resulted in silver particles forming over the surface of the silica. The outcome was materialized in extremely small silver particles attached to silica core particles. Playing their well-known decisive role, precursors and catalysts effectively controlled the size of silver and silica particles. The synchronized structure of the synthesized particles was revealed by the electrostatic repulsion among the silica spheres and th... |
| Databáze: | OpenAIRE |
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