VOC (volatile organic compound) removing material for solution and preparation method of VOC removing material

A solution and slow technology, applied in the field of VOC removal materials and its preparation, can solve the problems of limited catalytic effect, difficult replacement, low utilization rate of visible light catalysis, etc., achieve high catalytic utilization rate and improve the effect of removal effect

Pending Publication Date: 2021-07-23
创新环科环境数据科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among many photocatalytic materials, TiO is mostly loaded on porous solid materials. 2 Mainly, however, the cost of solid materials is high, and it is difficult to replace, whil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1

[0039] The preparation process of the VOC scavenging material of the present embodiment is as follows:

[0040] (1) Slowly add 40 g of butyl titanate to 200 g of anhydrous ethanol solution, and mechanically stir at 500 r / min for 1 h.

[0041] (2) Slowly add 4 g of concentrated sulfuric acid (dropwise) and continue stirring for 30 min to obtain solution A.

[0042] (3) Take another container and add TEOS 20g, add absolute ethanol 100g, and stir for 30min under 500r / min condition to obtain solution B.

[0043] (4) Slowly adding solution B to solution A, stirring at 500 r / min and continuing to stir for 2 h;

[0044] (5) Add 3 g of water and continue stirring for 4 hours; then pre-dry the obtained solution at 80°C for 24 hours; then react at a high temperature at 180°C for 4 hours.

[0045] (6) take out the mixture, wash 2 times with absolute ethanol; wash 2 times with deionized water;

[0046] (7) Baking in a muffle furnace at 400° C. for 18 hours to obtain...

Example

[0051] Performance test case 1: case description of VOC (non-methane total hydrocarbons) from cooking fume

[0052] A VOC scavenging material for use in a solution of the present invention is used for VOC scavenging of cooking oil fume. Install the catering oil fume online monitoring equipment in the oil fume discharge pipeline using the oil fume wet water purification equipment. Install an on-line monitoring device to monitor the wet water purification equipment system without solution type VOC removal materials, monitor the VOC (non-methane total hydrocarbons) content and concentration values ​​emitted by oil fume, and then in the same catering kitchen Install another wet water purification equipment, add solution-type VOC removal materials to the oil fume wet water purification equipment, and install an online monitoring device at the oil fume exhaust port to monitor the VOC (non-methane total hydrocarbons) emitted by oil fume. ) content and concentration values, adding so...

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PUM

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Abstract

The invention provides a VOC (volatile organic compound) removing material for a solution and a preparation method of the VOC removing material. The method comprises the following steps: S1, slowly adding butyl titanate into absolute ethyl alcohol according to a ratio of 1:(4-6.5); S2, adding concentrated sulfuric acid to obtain a solution A; S3, adding TEOS (tetraethyl orthosilicate) into absolute ethyl alcohol according to a ratio of 1:(3-7.5), and conducting stirring to obtain a solution B; S4, adding the solution B into the solution A, conducting stirring for 2-2.5 hours, adding water, continuously conducting stirring for 4-4.5 hours, and conducting reacting at high temperature; S5, baking the mixture obtained in the step S4 to obtain a titanium dioxide and silicon dioxide mixture; S6, adding magnesium powder into the mixture, and conducting calcining; S7, carrying out ultrasonic oscillation on the mixture in an HCl solution, conducting filtering, and baking the obtained powder to obtain catalytic powder; and S8, adding a surfactant into the catalytic powder, adding water, and fully conducting mixing. The preparation method provided by the invention can be used for preparing the aqueous solution VOC removal material with extremely high photocatalytic utilization rate, and can be suitable for removing VOC in an aqueous solution state.

Description

technical field [0001] The invention relates to the technical field of VOC treatment, in particular to a VOC scavenging material used in solution and a preparation method thereof. Background technique [0002] VOC is seriously harmful to the environment. Catalytic decomposition and degradation of VOC is one of the key means to solve environmental and energy problems. Among many photocatalytic materials, TiO is mostly supported by porous solid materials. 2 However, the cost of solid materials is high and the replacement is difficult, while ordinary TiO 2 The light-restricting factor is large, especially the catalytic utilization rate of visible light is extremely low, which seriously limits the catalytic effect. SUMMARY OF THE INVENTION [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a VOC scavenging material for use in solution and a preparation method thereof, which can obtain an aqueous solution VOC s...

Claims

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Application Information

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IPC IPC(8): B01J21/14C02F1/30C02F101/30C02F103/18
CPCB01J21/14B01J35/004C02F1/30C02F2101/30C02F2103/18C02F2305/10
Inventor 赵鸣超石金山钟勇才孙艳青
Owner 创新环科环境数据科技(北京)有限公司
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