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Color-controllable zeolite modification method

A zeolite and color technology, applied in the field of color-controllable zeolite modification, can solve problems such as affecting the performance of zeolite adsorptive supported photocatalysts, and achieve the effects of good adsorption and photocatalytic performance, convenient operation and strong adaptability

Pending Publication Date: 2021-08-17
赵海涛 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the requirements for color in interior decoration are getting higher and higher, and zeolite is usually white or brick red. It is difficult to meet people's requirements for color without adding colorants, and adding organic pigments will bring new pollutants , while affecting the adsorption of zeolite and the performance of loaded photocatalyst; therefore, we propose a color-controllable zeolite modification method

Method used

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  • Color-controllable zeolite modification method

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Experimental program
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Effect test

Embodiment 1

[0050] Using Liaoning Beipiao turquoise zeolite as raw material, crush and select large zeolite with an average particle size of 300mm, wash with deionized water, impregnate and coat Ti-based photocatalyst with a loading capacity of 5%-25% TiO 2 ;After drying, put it into the furnace for calcination, the heating rate is 10°C / min, the holding temperature is 450°C, the holding time is 3h, calcining in a weak oxidizing atmosphere; the cooling rate is 50°C / min, cooling in a weak oxidizing atmosphere. After calcination, the modified zeolite has the same particle size and orange-red color, and the adsorption capacity increases by about 25%. The 40L photocatalytic decomposition of formaldehyde test shows that the decomposition rate of formaldehyde is 34% after 20 minutes of light.

Embodiment 2

[0052] Using Liaoning Beipiao green zeolite as raw material, 2mm-5mm granular zeolite particles are obtained by crushing, screening and granulation. After cleaning with deionized water, dipping and coating Ti-based photocatalyst with a loading capacity of 5%-45%TiO 2 ; After drying, put it into the furnace for calcination, the heating rate is 5°C / min, the holding temperature is 450°C, the holding time is 2h, calcining in a weak reducing atmosphere; the cooling rate is 50°C / min, nitrogen protection. After calcination, the modified zeolite has the same particle size, turquoise color, and the adsorption capacity increases by about 35%. The 40L photocatalytic decomposition of formaldehyde test shows that the decomposition rate of formaldehyde is 42% after 20 minutes of light.

Embodiment 3

[0054] Using Liaoning Beipiao green zeolite as raw material, 0.5mm-0.35mm granular zeolite particles are obtained by crushing, screening and granulation. After cleaning with deionized water, impregnated and coated with Ti-based photocatalyst, the loading capacity is 5%-45%TiO 2 ;After drying, put it into the furnace for calcination, the heating rate is 5°C / min, the holding temperature is 450°C, the holding time is 2h, calcining in a weak reducing atmosphere; the cooling rate is 50°C / min, natural wind. After calcining, the modified zeolite has the same particle size, off-white color, and the adsorption capacity increases by about 35%. The 40L photocatalytic decomposition of formaldehyde test shows that the decomposition rate of formaldehyde is 39% after 20 minutes of light.

[0055] In this scheme, the raw material pretreatment process includes: granulation, photocatalyst loading, washing, and drying steps to provide raw materials for calcining, modifying and color fixing; the c...

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Abstract

The invention discloses a color-controllable zeolite modification method, and relates to the field of environment-friendly decorative materials. The method comprises four working procedures of raw material pretreatment, calcination, cooling and finished product treatment, and specifically comprises the following steps: Step 1: carrying out crushing-screening granulation treatment on a zeolite raw material, and specifically, respectively treating the zeolite raw material into powdery, granular and larger blocky materials; 2, washing the zeolite raw materials with different particle sizes according to requirements, carrying out photocatalyst loading treatment, and further carrying out inorganic colorant loading treatment and wet treatment; 3, based on the steps, drying after the treatment is completed; and 4, carrying out calcination treatment on the pretreated raw materials in the above step. According to the invention, natural zeolite is adopted as a raw material, and the requirements of color controllability are met on the premise of improving the adsorption capacity of zeolite and the function of degrading formaldehyde and other volatile organic pollutants by a loaded photocatalyst by controlling the pretreatment mode, the calcination temperature, the calcination time, the cooling schedule and the like of the raw material.

Description

technical field [0001] The invention relates to the field of environment-friendly decorative materials, in particular to a color-controllable zeolite modification method. Background technique [0002] Decorative materials such as coatings and panels in modern home decoration contain toxic substances such as formaldehyde, benzene, volatile organic compounds, and ammonia, which seriously threaten people's health. To solve this problem, we should start from the quantity aspect. On the one hand, we should choose environmentally friendly materials to reduce pollutants. On the other hand, it strengthens the removal of pollutants. Zeolite has ion exchange, adsorption separation, catalysis, stability, chemical reactivity, reversible dehydration, electrical conductivity, etc., and has a wide range of applications in chemical, pharmaceutical, environmental protection, building materials and other fields. Application, due to its adsorption and photocatalyst-loading properties, after pr...

Claims

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Application Information

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IPC IPC(8): B01J29/06B01J37/02B01J37/08B01J37/18B01J21/06B01D53/86B01D53/72B01D53/44B01J20/18C01B39/02C09C1/28C09C3/04C09C3/06
CPCB01J29/061B01J37/0201B01J37/0215B01J37/08B01J37/18B01J21/063B01J37/0027B01J37/0063B01J37/009B01J37/0234C01B39/026B01J20/186B01D53/8668B01D53/8687C09C1/28C09C3/006C09C3/041C09C3/043C09C3/045C09C3/06B01J2220/4806B01D2255/2096B01D2255/20707B01D2255/802B01D2257/7027B01D2257/708B01D2253/108B01J2229/186B01D2258/06B01J35/39
Inventor 赵海涛张金良
Owner 赵海涛
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