Photo-assisted Degradation of 2-Propanol in Gas-Solid Regime by Using TiO2 Impregnated with Heteropolyacids H3PW12O40

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Abstract

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 characterizationresults evidenced a good coverage of the polyoxometalate (POM) onto the surface of TiO2 along with amarginal effect of the presence of the POM on the specific surface area, morphology and cristallinity ofthe samples. Propene was the main intermediate product revealed in 2-propanol photocatalyticdegradation by using as photocatalysts the samples containing the POM, whereas propanone wasmainlyobtained when the photocatalysts was bare TiO2, both commercial or home prepared. Acetaldehyde wasalso 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 waterwere the ultimate oxidation products
Lingua originaleEnglish
pagine (da-a)42-47
Numero di pagine6
RivistaCatalysis Today
Volume144
Stato di pubblicazionePublished - 2009

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2-Propanol
Propanol
Photocatalysts
Gases
Degradation
Acetaldehyde
Ketones
Specific surface area
Propylene
Ethers
Carbon dioxide
Carbon Dioxide
Oxidation
Oxides
Acids
polyoxometalate I

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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title = "Photo-assisted Degradation of 2-Propanol in Gas-Solid Regime by Using TiO2 Impregnated with Heteropolyacids H3PW12O40",
abstract = "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 characterizationresults evidenced a good coverage of the polyoxometalate (POM) onto the surface of TiO2 along with amarginal effect of the presence of the POM on the specific surface area, morphology and cristallinity ofthe samples. Propene was the main intermediate product revealed in 2-propanol photocatalyticdegradation by using as photocatalysts the samples containing the POM, whereas propanone wasmainlyobtained when the photocatalysts was bare TiO2, both commercial or home prepared. Acetaldehyde wasalso 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 waterwere the ultimate oxidation products",
keywords = "2-Propanol, Heterogeneous photocatalysis, Polyoxometalate, TiO2",
author = "Giuseppe Marci' and {Garcia Lopez}, {Elisa Isabel} and Leonardo Palmisano",
year = "2009",
language = "English",
volume = "144",
pages = "42--47",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier",

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TY - JOUR

T1 - Photo-assisted Degradation of 2-Propanol in Gas-Solid Regime by Using TiO2 Impregnated with Heteropolyacids H3PW12O40

AU - Marci', Giuseppe

AU - Garcia Lopez, Elisa Isabel

AU - Palmisano, Leonardo

PY - 2009

Y1 - 2009

N2 - 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 characterizationresults evidenced a good coverage of the polyoxometalate (POM) onto the surface of TiO2 along with amarginal effect of the presence of the POM on the specific surface area, morphology and cristallinity ofthe samples. Propene was the main intermediate product revealed in 2-propanol photocatalyticdegradation by using as photocatalysts the samples containing the POM, whereas propanone wasmainlyobtained when the photocatalysts was bare TiO2, both commercial or home prepared. Acetaldehyde wasalso 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 waterwere the ultimate oxidation products

AB - 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 characterizationresults evidenced a good coverage of the polyoxometalate (POM) onto the surface of TiO2 along with amarginal effect of the presence of the POM on the specific surface area, morphology and cristallinity ofthe samples. Propene was the main intermediate product revealed in 2-propanol photocatalyticdegradation by using as photocatalysts the samples containing the POM, whereas propanone wasmainlyobtained when the photocatalysts was bare TiO2, both commercial or home prepared. Acetaldehyde wasalso 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 waterwere the ultimate oxidation products

KW - 2-Propanol

KW - Heterogeneous photocatalysis

KW - Polyoxometalate

KW - TiO2

UR - http://hdl.handle.net/10447/55973

M3 - Article

VL - 144

SP - 42

EP - 47

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -