Size-Controlled Transformation of Cu2O into Zero Valent Copper within the Matrix of Anion Exchangers via Green Chemical Reduction
| Autor: | A. Baszczuk, Ewa Stanisławska, Marek Jasiorski, Elżbieta Kociołek-Balawejder, Irena Jacukowicz-Sobala |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Copper oxide
Materials science Polymers and Plastics Oxide chemistry.chemical_element Cu2O reduction Amberlite Article Metal lcsh:QD241-441 chemistry.chemical_compound lcsh:Organic chemistry zero valent copper ascorbic acid as reducer Porosity General Chemistry Ascorbic acid Copper Nanocrystalline material Cu0-containing hybrid anion exchanger chemistry Chemical engineering visual_art visual_art.visual_art_medium |
| Zdroj: | Polymers, Vol 12, Iss 2629, p 2629 (2020) Polymers Volume 12 Issue 11 |
| ISSN: | 2073-4360 |
| Popis: | Composite materials containing zero valent copper (ZVC) dispersed in the matrix of two commercially available strongly basic anion exchangers with a macroreticular (Amberlite IRA 900Cl) and gel-like (Amberlite IRA 402OH) structure were obtained. Cu0 particles appeared in the resin phase as the product of the reduction of the precursor, i.e., copper oxide(I) particles previously deposited in the two supporting materials. As a result of a one-step transformation of preformed Cu2O particles as templates conducted using green reductant ascorbic acid and under mild conditions, macroporous and gel-type hybrid products containing ZVC were obtained with a total copper content of 7.7 and 5.3 wt%, respectively. X-ray diffraction and FTIR spectroscopy confirmed the successful transformation of the starting oxide particles into a metallic deposit. A scanning electron microscopy study showed that the morphology of the deposit is mainly influenced by the type of matrix exchanger. In turn, the drying steps were crucial to its porosity and mechanical resistance. Because both the shape and size of copper particles and the internal structure of the supporting solid materials can have a decisive impact on the potential applications of the obtained materials, the results presented here reveal a great possibility for the design and synthesis of functional nanocrystalline solids. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|