Electrochemical sensor for appraising ultraviolet shielding behaviour of nanometer oxide powder

A technology of nano-oxide and powder materials, which is applied in the field of nano-sensors, can solve the problems of cumbersome operation, sensor description, and large sample consumption, and achieve the effects of low process requirements, rapid evaluation, and low analysis cost

Inactive Publication Date: 2009-07-15
EAST CHINA NORMAL UNIV
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  • Abstract
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Problems solved by technology

However, the above two patents only disclose the evaluation method of the ultraviolet shielding performance of inorganic nanomaterials, but do not explain the sensor used for the evaluation of the ultraviolet shielding performance of inorganic nanomaterials
Moreover, the evaluation methods disclosed in the above two patents also have the defects of large sample consumption and cumbersome operation.

Method used

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  • Electrochemical sensor for appraising ultraviolet shielding behaviour of nanometer oxide powder
  • Electrochemical sensor for appraising ultraviolet shielding behaviour of nanometer oxide powder

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Embodiment Construction

[0017] The working process of the electrochemical sensor for evaluating the ultraviolet shielding performance of nano-oxide powder materials provided by the present invention is discussed in detail below in conjunction with the accompanying drawings:

[0018] The chemical sensor consists of a working electrode 1, a counter electrode 2, a reference electrode 3, an ultraviolet lamp 4, an inlet tube 5, an outlet tube 6, a quartz window 7, an upper cover plate 8, a lower cover plate 9 and a polytetrafluoroethylene film 10, Wherein the inlet tube 5 and the outlet tube 6 are respectively placed on both sides of the upper cover plate 8, the reference electrode is placed inside the outlet tube 6, the center of the upper cover plate 8 is inlaid with a quartz window 7, and the ultraviolet lamp 4 is placed between the quartz window 7 Inside, the polytetrafluoroethylene membrane 10 is placed between the upper cover plate 8 and the lower cover plate 9, and there is a strip-shaped gap in the...

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Abstract

The invention discloses an electrochemical sensor for evaluating the ultraviolet shielding performance of nano oxide powder materials, which belongs to the technical field of nano sensors. The electrochemical sensor for evaluating the ultraviolet shielding performance of inorganic nano oxide powder materials according to the present invention includes a working electrode, a counter electrode, a reference electrode, an ultraviolet lamp, an inlet tube, an outlet tube, a quartz window, an upper cover plate, and a lower cover plate And the polytetrafluoroethylene film, the upper cover, the polytetrafluoroethylene film and the lower cover are integrated into one, and there is a long strip-shaped gap in the middle of the polytetrafluoroethylene film to form the detection cell. It is simple, low in evaluation cost, and can quickly and effectively evaluate the UV shielding performance of nano-oxide powder materials.

Description

technical field [0001] The invention relates to an electrochemical sensor for evaluating the ultraviolet shielding performance of nano oxide powder materials, belonging to the technical field of nano sensors. Background technique [0002] Due to its unique physical and chemical properties, nano oxide powder materials have been extensively studied and initially applied. Nanoparticles such as titanium dioxide, zinc oxide, and silicon dioxide have a strong absorption effect on ultraviolet rays in the 200nm-400nm band, and have been added to sunscreens, paints, and textiles to shield ultraviolet rays, prevent ultraviolet rays from damaging the human body, and delay Paint aging. Before choosing to use nano-shielding agent, its UV shielding performance must be evaluated quickly, economically and effectively. Chinese invention patent application "UV shielding performance evaluation method of nano-powder material" (Chinese patent, patent application number 03114952.9) and "a metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/59G01N27/00G01N23/227G01N21/00G01N23/00
Inventor 金利通杨佳音孙郑冬刘炜张文鲜跃仲
Owner EAST CHINA NORMAL UNIV
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