6533b855fe1ef96bd12b1787
RESEARCH PRODUCT
Photo-assisted Degradation of 2-Propanol in Gas-Solid Regime by Using TiO2 Impregnated with Heteropolyacids H3PW12O40
Giuseppe Marci'Elisa Isabel Garcia LopezLeonardo Palmisanosubject
Settore CHIM/07 - Fondamenti Chimici Delle TecnologiePolyoxometalate2-PropanolHeterogeneous photocatalysisTiO2description
Commercial and home prepared TiO2 samples impregnated with tungstophosphoric acid (H3PW12O40) were used for the photo-assisted degradation of 2-propanol in gas–solid regime. The characterization results evidenced a good coverage of the polyoxometalate (POM) onto the surface of TiO2 along with a marginal effect of the presence of the POM on the specific surface area, morphology and cristallinity of the samples. Propene was the main intermediate product revealed in 2-propanol photocatalytic degradation by using as photocatalysts the samples containing the POM, whereas propanone wasmainly obtained when the photocatalysts was bare TiO2, both commercial or home prepared. Acetaldehyde was also found as an intermediate product along with traces of isopropyl ether, mesityl oxide and isobutylmethyl- ketone that were also detected as gaseous products in all the runs. Carbon dioxide and water were the ultimate oxidation products
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 |