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A kind of sol capable of shielding 185nm spectral line and its preparation method and application

A sol and spectral line technology is applied in the field of sol and its preparation that can shield the 185nm spectral line, which can solve the problems such as the lack of a good solution to ozone-free ultraviolet lamps, and achieve the effects of uniform size, dense film layer and good effect.

Active Publication Date: 2019-02-01
佛山优维士光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no good solution at home and abroad to completely shield the 185nm spectral line and prevent the generation of ozone by the ozone-free ultraviolet lamp.

Method used

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  • A kind of sol capable of shielding 185nm spectral line and its preparation method and application
  • A kind of sol capable of shielding 185nm spectral line and its preparation method and application
  • A kind of sol capable of shielding 185nm spectral line and its preparation method and application

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Experimental program
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Embodiment 1

[0035] The preparation of embodiment 1 sol

[0036] The preparation of embodiment 1 sol comprises the following steps:

[0037] (1) Mix ethanol, acetylacetone and glacial acetic acid at a mass ratio of 18:1:1.2, and stir at a constant speed for 12 minutes to form a mixed solution I;

[0038] (2) Add n-butyl titanate to mixed solution I, the mass ratio of n-butyl titanate to mixed solution I is 1:2.3, stir and react at a constant speed for 45 minutes to form mixed solution II;

[0039] (3) Mix ethanol and deionized water at a mass ratio of 1:1, and stir at a constant speed for 30 minutes to form a mixed solution III;

[0040] (4) Add the mixed solution III to the mixed solution II by spraying at a speed of 0.065 ml / s, the mass ratio of the mixed solution III to the mixed solution II is 1.05:1, and stir at a constant speed for 30 minutes to form a mixed solution IV;

[0041] (5) Add deionized water to the mixed solution IV by spraying at a speed of 0.085 ml / s, the mass ratio of...

Embodiment 2

[0043] The preparation of embodiment 2 sol

[0044] The preparation of embodiment 2 sol comprises the following steps:

[0045] (1) Mix ethanol, acetylacetone and glacial acetic acid in a mass ratio of 20:1:1.5, and stir at a constant speed for 15 minutes to form a mixed solution I;

[0046] (2) Add n-butyl titanate to mixed solution I, the mass ratio of n-butyl titanate to mixed solution I is 1:3.5, stir and react at a constant speed for 60 minutes to form mixed solution II;

[0047] (3) Mix ethanol and deionized water at a mass ratio of 1.03:1, and stir at a constant speed for 35 minutes to form a mixed solution III;

[0048] (4) Add the mixed solution III to the mixed solution II by spraying at a speed of 0.075 ml / s, the mass ratio of the mixed solution III to the mixed solution II is 1.09:1, and stir at a constant speed for 35 minutes to form a mixed solution IV;

[0049] (5) Add deionized water to the mixed solution IV by spraying at a rate of 0.1 ml / s, the mass ratio ...

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Abstract

The invention relates to the technical field of an inorganic nano-material, and especially relates to a sol capable of shielding a 185 nm spectral line and a preparation method and an application thereof. The sol obtained by the preparation method contains titanium hydroxide particles with a fine and uniform particle size, the sol property is stable, a low-pressure discharge lamp film-forming technology is combined, steps of flow coating on an inner wall of an ultraviolet ray glass tube, drying and roasting are carried out, a nano titanium dioxide protection film is compact and pinhole-free, the protection film has complete shielding effect for the 185 nm spectral line, and does not influence the normal output of a 254 nm spectral line. The sol capable of shielding the 185 nm spectral lineis used for preparing an ozone-free ultraviolet lamp, can completely avoid generation of ozone, and has endurance.

Description

technical field [0001] The invention relates to the technical field of inorganic nanomaterials, in particular to a sol capable of shielding 185nm spectral lines and its preparation method and application. Background technique [0002] As we all know, low-pressure ultraviolet germicidal lamps belong to the category of low-pressure gas discharge mercury lamps. The discharge principle is that mercury atoms undergo energy transitions after being excited, and mercury atoms emit two spectral lines from high-energy level to low-energy level transitions, one is 254nm Spectral line, the other is 185nm spectral line. In the field of ultraviolet lamps and their applications, if the ultraviolet lamp emits both 254nm ultraviolet rays and 185nm ultraviolet rays, since the 185nm ultraviolet rays can combine with oxygen in the air to generate ozone, it is called an ozone ultraviolet lamp in the industry; if the ultraviolet lamp is only used alone It emits 254nm ultraviolet light, then we c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00C01G23/04
CPCB01J13/003C01G23/04
Inventor 吴文东何维江炜
Owner 佛山优维士光电科技有限公司
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