Photocatalytic reactions of 1,3-butadiene over water-adsorbed TiO sub 2

Journal Article · Thu Jun 14 04:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100375a046· OSTI ID:6380538

Kodama, Sukeya; Yagi, Shinji ^[1]

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1. Univ. of Osaka Prefecture (Japan)

Photocatalytic reactions of 1,3-butadiene over water adsorbed TiO{sub 2} were investigated at 293 K. The initial formation rates of C{sub 2}H{sub 4}, C{sub 2}H{sub 6}, C{sub 3}H{sub 6}, C{sub 3}H{sub 8}, 1-C{sub 4}H{sub 8}, and trans-2-C{sub 4}H{sub 8}, which hardly depend on the pressure of 1,3-butadiene (2.0-13.3 kPa), were 8.1, 7.1, 267, 177, 209, and 34 pmol s{sup {minus}1}, respectively. The formations of CH{sub 4}, n-C{sub 4}H{sub 10}, CO, n-C{sub 3}H{sub 7}CHO, s-C{sub 4}H{sub 9}OH, and n-C{sub 4}H{sub 9}OH were also observed. The drastic decrease of the hydrocarbon yields by the addition of O{sub 2} was not found except for C{sub 2}H{sub 6} and C{sub 3}H{sub 8}. The increase of formation yield by the loading of Pt was observed for all products, especially n-C{sub 4}H{sub 10}. From these results, the reaction mechanisms that the photoformed OH radical and H atom at close range are concerned cooperatively were proposed for the formations of C{sub 2}H{sub 4}, C{sub 2}H{sub 6}, C{sub 3}H{sub 6}, and C{sub 3}H{sub 8} by the photocatalytic hydrogenolysis reaction.

• OSTI ID: 6380538
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:12; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BUTADIENE
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DATA ANALYSIS
DIENES
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
POLYENES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS