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Production manner of tungsten trioxide powders for photocatalyst, tungsten trioxide powders and photocatalyst product for photocatalyst

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

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.
机译:根据本发明的用于光催化剂的三氧化钨粉末的制备方法的特征在于包括升华步骤,该升华步骤是通过在氧气气氛中使用感应耦合等离子体工艺升华钨金属粉末或钨化合物粉末来获得三氧化钨粉末的。热处理步骤,用于将在升华步骤中获得的三氧化钨粉末在氧化气氛中在300℃至1000℃下热处理10分钟至2小时。通过本发明的光催化剂用三氧化钨粉的制造方法得到的三氧化钨粉在可见光下具有优异的光催化性能。

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