Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Method of quickly decomposing and removing an organic chlorine compound by a hollandite-type photocatalyst
A method of quickly decomposing and removing an organic chlorine compound, which comprises coating a liquid containing an organic chlorine compound on the surface of a photocatalyst so that the liquid does not flow, said photocatalyst comprising a hollandite-type crystal phase represented by the formula:AxMyN8-yO16 (wherein A is at least one element selected from the group consisting of K, Rb, Cs, Ca, Ba and Na, M is a bivalent or trivalent metal element, N is an element which forms a rutile-type oxide, such as Ti, Sn or Mn, provided that A may be a Na element, only when M is Cr, and x and y satisfy 0.7<x&lE;2.0 and 0.7<y&lE;2.0, respectively), followed by irradiation with light in air so that the organic chlorine compound undergoes quick and complete oxidative destruction.
National Institute for Research in Inorganic Materials
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Toshiyuki Mamoru Kenjiro Jun
Mori Watanabe Fujimoto Suzuki