| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Sarina, Sarina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (2/2 displayed)
Places of action
| Organizations | Location | People |
|---|
document
Photocatalytic benzyl alcohol oxidation using facet controlled ZnO nanocatalysts
Abstract
Zinc oxide materials are interesting because their physical and chemical properties can promote highperformance as functional materials for various applications. ZnO has a wide band gap (3.37 eV) with a high binding energy of 60 meV. ZnO is a cheap material and its ability to govern organic redox reactions at room temperature conditions endows promising advantages over other conventional catalysts. Therefore, exploring ZnO semiconductor as a catalyst for synthetic organic reactions is a significant important research direction in the field of sustainable organic synthesis reactions. In this study, cone-shaped ZnO nanocrystals with exposed reactive oxygen terminated {101̅1} facets, rodshaped ZnO nanocrystals where {101̅0} facets are predominantly exposed and plate shape ZnO where {101̅1} and {0001} exposed were synthesized using a non-hydrolytic aminolysis synthesis route. The nanoparticles were characterized by TEM, BET, XPS, XRD and Uv-Vis. The 3 different shaped ZnO nanocrystals were tested for Friedel crafts acylation of aromatic compounds to investigate its catalytic<br/>properties. Reaction products and conversions were analysed using GC and GC-MS. Having different facets exposed in different shapes of ZnO catalysts exhibited, different reaction rates with different product selectivity for methoxybenzophenone. Among them ZnO nanocones gave the highest starting<br/>material conversion. To investigate the materials’ photocatalytic behaviour, ZnO were used as a catalyst for benzyl alcohol oxidation. Benzaldehyde was obtained as the product with 100% selectivity in every shape tested. Different reaction conversions of benzyl alcohol oxidation were resulted due to different band structure and surface adsorption properties of ZnO nanocones, nanorods and nanoplates.