Speaker
Description
One of the most important environmental problems nowadays is the recovery of industrial waste. The growing human activity generates a huge amount of material that has to be treated and stored to avoid contamination of water and lands. However, another possibility, with increasing interest in the last years, is to reuse this waste to obtain recycled new active materials which can be reintroduced in the productive chain. For this purpose, the optimization of growth methods and full characterization of the obtained samples are key factors.
In this work, metal oxide modified zeolites obtained from red mud and fly ashes have been obtained. Different metal oxides (Cu, Zn, Ti or Fe oxides) have been selected to be introduced in the zeolite structure in order to explore the possibilities of these hybrid materials to be used in environmental applications such as gas sensing or photocatalysis. The samples were structurally characterized by X ray diffraction (XRD) and Raman spectroscopy. Cathodo- and Photoluminescence were performed to study their luminescence properties. Finally, the gas sensing response to reducing atmospheres of the different samples has been also investigated. For this purpose, electrical resistivity or luminescence intensity of the samples under different gas exposure have been monitored.
| Speaker Country | Spain |
|---|