Selective photo-oxidation of neat cyclohexane in the liquid phase over V2O5/Al2O3

被引:58
作者
Teramura, K [1 ]
Tanaka, T [1 ]
Kani, M [1 ]
Hosokawa, T [1 ]
Funabiki, T [1 ]
机构
[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6158510, Japan
关键词
cyclohexane; selective oxidation; V2O5/Al2O3; photocatalyst;
D O I
10.1016/S1381-1169(03)00544-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
V2O5/Al2O3 exhibits the high selectivity to partial oxidation compounds (cyclohexanol and cyclohexanone) as compared with TiO2 in the photo-oxidation of cyclohexane in the liquid phase. This reaction is an environmentally friendly reaction since it proceeds at ambient temperature and atmospheric pressure without a solvent. The features of the reaction are a high selectivity to partial oxidation products and a reasonable ketone/alcohol ratio (K/A ratio). However, by elongation of the photoirradiation time, cyclohexyl hexanoate as a by-product was generated and the K/A ratio decreased gradually. Retention of the high O-2 concentration in the gas phase and irradiation of light lambda > 330 nm are keys to the selective formation of the partial oxidation compounds with a reasonable K/A ratio in the photo-oxidation of cyclohexane over V2O5/Al2O3. In the present study, a selectivity of 87% to the partial oxidation compounds was achieved with the K/A ratio of 3.8. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:299 / 305
页数:7
相关论文
共 48 条
  • [1] PHOTOOXIDATION OF HYDROCARBONS ON PORPHYRIN-MODIFIED TITANIUM-DIOXIDE POWDERS
    AMADELLI, R
    BREGOLA, M
    POLO, E
    CARASSITI, V
    MALDOTTI, A
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1992, (18) : 1355 - 1357
  • [2] PHOTO-LUMINESCENCE AND PHOTO-REDUCTION OF V2O5 SUPPORTED ON POROUS VYCOR GLASS
    ANPO, M
    TANAHASHI, I
    KUBOKAWA, Y
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1980, 84 (25) : 3440 - 3443
  • [3] Activities and stabilities of heterogeneous catalysts in selective liquid phase oxidations: recent developments
    Arends, IWCE
    Sheldon, RA
    [J]. APPLIED CATALYSIS A-GENERAL, 2001, 212 (1-2) : 175 - 187
  • [4] Bellussi G., 2000, CATTECH, V4, P4, DOI DOI 10.1023/A:1011905009608
  • [5] Photocatalytic oxygenation of cyclohexane on titanium dioxide suspensions: Effect of the solvent and of oxygen
    Boarini, P
    Carassiti, V
    Maldotti, A
    Amadelli, R
    [J]. LANGMUIR, 1998, 14 (08) : 2080 - 2085
  • [6] INDUSTRIAL-PRODUCTION AND USE OF ADIPIC ACID
    CASTELLAN, A
    BART, JCJ
    CAVALLARO, S
    [J]. CATALYSIS TODAY, 1991, 9 (03) : 237 - 254
  • [7] New possibilities and opportunities for basic and applied research on selective oxidation by solid catalysts: an overview
    Centi, G
    Misono, M
    [J]. CATALYSIS TODAY, 1998, 41 (04) : 287 - 296
  • [8] Photocatalytic selective oxidation of hydrocarbons in the aqueous phase
    Gonzalez, MA
    Howell, SG
    Sikdar, SK
    [J]. JOURNAL OF CATALYSIS, 1999, 183 (01) : 159 - 162
  • [9] LUMINESCENCE STUDY OF PHOTOREDUCTION OF VANADIUM(V) SUPPORTED ON SILICA-GEL
    GRITSCOV, AM
    SHVETS, VA
    KAZANSKY, VB
    [J]. CHEMICAL PHYSICS LETTERS, 1975, 35 (04) : 511 - 512
  • [10] GRITSKOV AM, 1974, KINET KATAL, V15, P1257