FTIR study of gas-phase alcohols photocatalytic degradation with TiO2 and AC-TiO2

Araña, J.; Doña-Rodrı́guez, J.M.; Cabo, C. Garriga i; Díaz, O. González; Melián, J.A. Herrera; Pérez‐Peña, J.

doi:10.1016/j.apcatb.2004.04.024

Cited by 110 publications

(60 citation statements)

References 34 publications

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“…In the present study, butyraldehyde, butyric acid, propionaldehyde, propanol, acetaldehyde and ethanol were produced during photocatalytic degradation. This is similar to previous observations [26,65,66]. Furthermore, acetic acid and m/z 31 (presumably formaldehyde) were also found ( Table 6).…”

Section: -Butanolsupporting

confidence: 90%

Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

Yao

Feilberg

2015

Chemical Engineering Journal

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Section: -Butanolsupporting

confidence: 90%

Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

Yao

Feilberg

2015

Chemical Engineering Journal

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“…Of the many options to enhance the efficiency of TiO 2 photocatalyst, noble metal deposition (Pt, Pd) has been shown to be effective in many occasions. Various studies show that metal deposition enhances the photocatalytic activity of TiO 2 in photo degradation reactions in the aqueous phase [14][15][16], as well as in gas phase applications [17,18]. Besides modification by Pt or Pd, modification of Titania by Au has recently been reported to enhance performance in photocatalytic applications involving waste water treatment [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

How Gold Deposition Affects Anatase Performance in the Photo-catalytic Oxidation of Cyclohexane

et al. 2009

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Gold deposition on Hombikat UV100 was found to negatively affect the activity of this Anatase catalyst in selective photo-oxidation of cyclohexane. By ammonia TPD and DRIFT spectroscopy it was determined that the Au deposition procedure leads to a significant decrease in OH-group density (mol m -2 BET ) on Hombikat, suggesting that the amount of surface OH-groups, rather than the presence or absence of Au, is determining the catalytic performance. The importance of surface OH-groups was demonstrated by comparing the performance of Hombikat (with and without Au deposition) to surface propoxylated TiO 2 , synthesized by a sol-gel method from titanium (IV) isopropoxide. The effect of the deposition recipe of noble metals on the surface composition of TiO 2 should thus be taken into account in evaluating and explaining photocatalytic performance of TiO 2 modified by noble metals (Au), in particular in non-aqueous phase reactions.

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“…The photooxidation of methanol may follow both direct and indirect processes depending on the amount of water and oxygen present. Formate and formaldehyde intermediates were detected but the attribution of an intermediate to one or the other process is still controversial [172,173]. Additional intermediates could be detected with low temperature (1.9 K) EPR study such as CH 2 OH…”

Section: Photooxidation Of Alcohols Aldehydes and Ketonesmentioning

confidence: 95%

Titanium Dioxide in Photocatalysis

Cassaignon

Colbeau‐Justin

Durupthy

2012

Nanomaterials: A Danger or a Promise?

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TiO 2 -based heterogeneous photocatalysis is a process that develops rapidly in environmental engineering and it is now employed in several industrial domains, including water treatment, air purification, and self-cleaning surfaces. Photocatalysis is a natural phenomenon in which the TiO 2 accelerates a chemical reaction through the action of light, without being altered. The illuminated TiO 2 induces the formation of reactive species, able to decompose by oxidation and/or reduction reactions organic or inorganic substances. The major part of the applications of photocatalysis corresponds to organic oxidation, and it is now considered as one of the Advanced Oxidation Technologies (AOTs), gathering the reactions mainly based on hydroxyl radical (HO • ) chemistry. The development of a system based on photocatalysis requires gathering knowledge of numerous and various scientific domains: physical-chemistry, materials science, catalysis, environmental chemistry, biology, and engineering science. This chapter is therefore designed to give a detailed survey of the different scientific fields concerning TiO

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FTIR study of gas-phase alcohols photocatalytic degradation with TiO2 and AC-TiO2

Cited by 110 publications

References 34 publications

Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

How Gold Deposition Affects Anatase Performance in the Photo-catalytic Oxidation of Cyclohexane

Titanium Dioxide in Photocatalysis

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