Composite bismuth vanadium photocatalyst supported by cobalt oxide and preparation method thereof

A technology of bismuth vanadate and cobalt oxide, which is applied in the field of bismuth vanadate composite photocatalyst and its preparation, can solve the problems that the activity of bismuth vanadate is not suitable for practical application, etc., and achieve the goal of promoting practical application, reducing cost, and high-efficiency photocatalytic activity Effect
CN1806915AInactive Publication Date: 2006-07-26SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2006-07-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates the method for preparation of pucherite composite photocatalyst loaded on cobalt oxide. The photocatalyst comprises semi-conductor pucherite particle and cobalt oxide particle. The pucherite is monoclinic crystal system scheelite structure, and the diameter is 100nm-5mum. The grain diameter of cobalt oxide is 10nm-1mum. The mass ratio of cobalt oxide and pucherite is 1-100mg / g. The specific surface area of composite photocatalyst is 0.5-5m2 / g. The said photocatalyst can effectively degrade the noxious and harmful chemical under the ultraviolet light, visible light and natural light radiating. And the photocatalyst is easy to separate and recover.
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Description

technical field

[0001] The invention relates to a bismuth vanadate composite photocatalyst supported by cobalt oxide and a preparation method thereof. The prepared photocatalyst has photocatalytic activity in a wide wavelength range and can efficiently photocatalyze degradation under ultraviolet light, visible light or natural light radiation Toxic and harmful chemicals. The invention belongs to the field of inorganic nanometer photocatalytic materials. Background technique

[0002] The current environmental problems and energy crisis have become the two bottlenecks restricting human development. Photocatalytic technology has the potential to solve environmental and energy problems, because the photolysis water technology that converts solar energy into clean hydrogen energy will completely solve the crisis of fossil energy depletion. Photocatalytic decomposition of toxic organic pollutants will become a cheap and feasible way to solve environmental problems. Therefore, se...

Claims

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