Photocatalyst Fisher

Methane (99.99 vol%) (Air Products and Chemicals, Inc.) was used without further purification. Activated alumina, Ni(NO3)26H20 and Fe(N03)39H20 (Fisher Scientific) were used without further purification. Alumina-supported Ni and Fe catalysts were synthesized according to the procedures described in the literature.38 Samples of activated carbon and graphite were obtained from Fisher Scientific and Aldrich, respectively. Preparation of POT photocatalysts and related experimental procedures were described previously.14... 

Materials 4-Chlorophenol, 4-chlororesorcinol, hydroquinone, and hy-droxyhydroquinone were purchased from Aldrich Chemical Co., Milwaukee, WI 4-chlorocatechol was purchased from TCI American, Portland, OR. Acetonitrile, hexane, methylene chloride, methanol, and pyridine were obtained from the Fisher Scientific Co., Fulton, CA. The photocatalyst was Degussa P-25 titanium dioxide [mainly anatase form surface area 50 m2/g pHzpc (pH at zero point of charge) 6.3 contains some impurities such as Al203 (<0.3%), Si02 (<0.2%), Fe203 (<0.01%), and HCl (<0.3%)]. 

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See also in sourсe #XX -- [ ]

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