Evaluation method for nano powder material light catalysis property

A nano-powder, photocatalytic technology, applied in the direction of chemical analysis using catalysis, can solve expensive, such as scanning tunneling microscope, atomic force microscope, laser detection atomic force microscope, low temperature scanning microscope, vacuum scanning tunneling One hundred thousand yuan or even several million yuan, can not be determined and other problems, to achieve the effect of fast analysis and testing, simple equipment, and low cost
CN1409109AInactive Publication Date: 2003-04-09EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Publication Date
2003-04-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

A photocatalysis performance estimating method for nano powder material, belonging to the estimating technical field of material chemical properties, includes seven steps in operation as setting up aphotocatalysis device, preparing a photocatalysis degradation solution, degradation reaction of photocatalysis, centrifugal ization, taking the solution, determining the unabsorbance Ar, and estimating the grade of photocatlaysis performance of the nano powder material. Through making the estimated standard of photocatalysis, the quality grade for photocatalyst of the nano powder material can be determined and it provides the direct basis for the use of nanopowder material. The method only uses very simple instrument, but also is quick in detection so that it has a very good prospect for the application to environmental protection and food freshness-keeping field of nano powder material.
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Description

Technical field

[0001] The invention relates to a method for evaluating the photocatalytic performance of a nano-powder material, which belongs to the technical field of material chemical property evaluation. Background technique

[0002] Nanotechnology is a high-tech that was born in the late 1980s and is developing vigorously. As one of its products, nanopowder materials embody modern technologies such as small size, complex structure, high integration, strong interaction and high specific surface area. specialty. At the nanometer size, the material has many specific properties that conventional materials do not have, such as: quantum effect, surface effect, volume effect, etc., and its optical, thermal, electrical, magnetic, mechanical and especially some chemical properties have also occurred. These changes have contributed to the research and application of nano-powder materials in many fields. In order to identify and inspect nanopowder materials ...

Claims

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