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Production manner of tungsten trioxide powders for photocatalyst, tungsten trioxide powders and photocatalyst product for photocatalyst
Production manner of tungsten trioxide powders for photocatalyst, tungsten trioxide powders and photocatalyst product for photocatalyst
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机译:光催化剂用三氧化钨粉的生产方式,光催化剂用三氧化钨粉和光催化剂产品
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摘要
A method for producing a tungsten trioxide powder for a photocatalyst according to the present invention is characterized by comprising a sublimation step for obtaining a tungsten trioxide powder by subliming a tungsten metal powder or a tungsten compound powder by using inductively coupled plasma process in an oxygen atmosphere and a HEAT treatment step for heat-treating the tungsten trioxide powder obtained in the sublimation step at 300 C. to 1000 C. for 10 minutes to 2 hours in an oxidizing atmosphere. A tungsten trioxide powder which is obtained by the method for producing a tungsten trioxide powder for a photocatalyst according to the present invention has excellent photocatalytic performance under visible light.
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