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A kind of orange-yellow photonic crystal structural color thin film with photocatalytic effect and preparation method thereof

A photonic crystal, orange-yellow technology, applied in the field of photonic crystal structural color film preparation, can solve the problems of little research on photonic crystal structural color films, and achieve the effects of bright colors, simple and easy process, and broad application prospects.

Active Publication Date: 2018-03-16
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the current research on photonic crystal structural color films is limited to the imitation and analysis of color rendering effects in different colors. The main materials are silicon oxide, polystyrene and other materials. For multifunctional photonic crystal structural color materials, especially There is little research on photonic crystal structural color thin films with photocatalytic properties

Method used

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  • A kind of orange-yellow photonic crystal structural color thin film with photocatalytic effect and preparation method thereof
  • A kind of orange-yellow photonic crystal structural color thin film with photocatalytic effect and preparation method thereof
  • A kind of orange-yellow photonic crystal structural color thin film with photocatalytic effect and preparation method thereof

Examples

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Embodiment 1

[0026] A method for preparing an orange-yellow photonic crystal structural color film with photocatalytic effect, comprising the following steps:

[0027] (1) Weigh Zn(NO 3 ) 2 ·6H 2 Several grams of O and polyvinylpyrrolidone (PVP) are added to the beaker, and the ratio of 0.45gZn(NO 3 ) 2 ·6H 2 O: 100mL deionized water, fully dissolved and mixed evenly by magnetic stirring, and a uniform solution was obtained after stirring for 30 minutes.

[0028] (2) Accurately weigh 0.3 g of thioacetamide, add 50 mL of deionized water and ultrasonically mix for 10-20 minutes to obtain an aqueous solution of thioacetamide.

[0029] (3) After stirring the above two solutions (1) and (2) evenly respectively, add them into the same beaker, and react in a water bath at 90°C for 6 hours on a magnetic stirrer, and then the microspheres containing zinc sulfide can be obtained. Emulsion. Washing with water and washing with alcohol three times each, and then ultrasonically dispersing to obta...

Embodiment 2

[0041] A method for preparing an orange-yellow photonic crystal structural color film with photocatalytic effect, comprising the following steps:

[0042] (2) Weigh Zn(NO 3 ) 2 ·6H 2 Several grams of O and polyvinylpyrrolidone (PVP) are added to the beaker, and the ratio of 0.5gZn(NO 3 ) 2 ·6H 2 O: The proportion of 100mL deionized water is added into deionized water, fully dissolved and mixed evenly by magnetic stirring, and a uniform solution is obtained after stirring for 30 minutes.

[0043] (2) Accurately weigh 0.3 g of thioacetamide, add 50 mL of deionized water and ultrasonically mix for 10-20 minutes to obtain an aqueous solution of thioacetamide.

[0044] (3) After stirring the above two solutions (1) and (2) evenly, add them to the same beaker, and react in a water bath at 80° C. for 7 hours on a magnetic stirrer to obtain microspheres containing zinc sulfide. Emulsion. Washing with water and washing with alcohol three times each, and then ultrasonically dispe...

Embodiment 3

[0048] A method for preparing an orange-yellow photonic crystal structural color film with photocatalytic effect, comprising the following steps:

[0049] (3) Weigh Zn(NO 3 ) 2 ·6H 2 Several grams of O and polyvinylpyrrolidone (PVP) are added to the beaker, and the ratio of 0.5gZn(NO 3 ) 2 ·6H 2 O: Add deionized water at a ratio of 100mL, magnetically stir to fully dissolve and mix evenly, and stir for 30min to obtain a uniform solution.

[0050] (2) Accurately weigh 0.2 g of thioacetamide, add 50 mL of deionized water and ultrasonically mix for 10-20 minutes to obtain an aqueous solution of thioacetamide.

[0051] (3) After stirring the above two solutions (1) and (2) evenly, add them to the same beaker, and react in a water bath at 95° C. for 5 hours on a magnetic stirrer to obtain microspheres containing zinc sulfide. Emulsion. Washing with water and washing with alcohol three times each, and then ultrasonically dispersing to obtain an ethanol solution of monodispers...

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Abstract

The invention discloses an orange-yellow photonic crystal structural color film with photocatalytic effect and a preparation method thereof, belonging to the technical field of photonic crystal structural color film preparation. First, uniform precipitation method was used to prepare zinc sulfide microspheres with uniform particle size, and then vertical deposition method was used to self-assemble on the surface of glass substrate to form an orange-yellow photonic crystal structural color film. This orange-yellow film with structural color is bright in color and not easy to fade, which solves the shortcomings of chemical organic pigments that are easy to fade and harmful to human body. Moreover, the photocatalytic degradation function of the photonic crystal structural color film on rhodamine B has been realized. The technological process of the present invention is simple and easy, can be industrially produced on a large scale, and has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of photonic crystal structural color film preparation, and in particular relates to a preparation method of an orange-yellow photonic crystal structural color film with photocatalytic effect. Background technique [0002] The photonic crystal is a photonic bandgap structure caused by the periodic change of the refractive index of the dielectric, so that the movement of light in the photonic crystal is controlled by the photonic bandgap structure. A photonic crystal is a material with a low refractive index periodically appearing in certain positions of a high refractive index material. Materials with high and low refractive indices are alternately arranged to form a periodic structure to produce a photonic crystal band gap. Thus, structural colors are produced. This is a kind of physical coloration, which has the advantages of bright color, never fading, environmental friendliness, and short preparation cy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/00C08J5/18C08L39/06C08K3/30
Inventor 王芬张欣盖言成林营王毅朱建锋杨海波
Owner SHAANXI UNIV OF SCI & TECH