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Preparation method of fixing anthraquinone compound on surface of inorganic filler, and application thereof

A technology of inorganic fillers and compounds, which is applied in the field of preparation of anthraquinone compounds fixed on the surface of inorganic fillers, can solve the problems of low final yield, long time consumption, long reaction steps, etc., and achieves simple reaction process, improved operability, and reaction The effect of fewer steps

Active Publication Date: 2019-07-23
XIAMEN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are following problems in this method: (1) reaction step is long, time-consuming is long, final yield is low, and cost is high; (2) use the anthraquinone compound that contains sulfonyl chloride group to be easy to produce hydrogen chloride gas when contacting water vapor, dangerous Large, requiring strict control of the production environment, resulting in inconvenient manufacturing and increased costs; (3) Although the porous inorganic filler has a large specific surface area, the internal porous structure is easily blocked by bacteria in practical applications and cannot play a role, often only the surface. Quinone-based compounds can play a role
[0007] Therefore, the quinone-containing redox mediator is immobilized on a suitable water-insoluble physical carrier by a suitable method, so that it is not easy to be lost and reused, but there is no report on a better physical carrier and a simpler fixed method

Method used

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  • Preparation method of fixing anthraquinone compound on surface of inorganic filler, and application thereof
  • Preparation method of fixing anthraquinone compound on surface of inorganic filler, and application thereof
  • Preparation method of fixing anthraquinone compound on surface of inorganic filler, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 50 parts of absolute ethanol, 6 parts of chloropropyl triethoxysilane and 0.5 parts of dilute hydrochloric acid with a mass concentration of 0.05 wt% were stirred at room temperature for 0.5 hours, added to 100 parts of 800 mesh heavy calcium carbonate, and heated to 60 ℃, stirred and reacted for 2 hours, lowered the temperature, filtered, and the filtered solid was washed 3 times with absolute ethanol and dried to obtain chloropropyl modified heavy calcium carbonate.

[0036] Place the container in a water bath at 12°C, add 100 parts of chloropropyl-modified heavy calcium carbonate, 22 parts of 2-aminoanthraquinone, 400 parts of tetrahydrofuran and 11 parts of triethylamine in sequence, stir for 5 hours and heat up to 55°C , stirred for 3 hours, filtered, and the filtered solid was washed 3 times with deionized water, then washed 3 times with absolute ethanol, and dried to obtain heavy calcium carbonate with an anthraquinone compound fixed on the surface. FT-IR analysi...

Embodiment 2

[0038] 100 parts of absolute ethanol, 10 parts of chloropropyltrimethoxysilane and 0.5 parts of dilute hydrochloric acid with a mass concentration of 0.1 wt% were stirred at room temperature for 0.5 hours, added to 100 parts of solid glass microspheres with an average particle diameter of 30 μm, and heated to 45°C, stirred and reacted for 4 hours, cooled down, filtered, and the filtered solid was washed three times with absolute ethanol and dried to obtain solid glass microspheres 1 modified with chloropropyl groups.

[0039]Place the container in a water bath at 15°C, add 100 parts of chloropropyl-modified solid glass microspheres 1, 30 parts of 1-aminoanthraquinone, 400 parts of toluene and 18 parts of triethylamine in sequence, stir for 7 hours, and heat up to 60 ℃, stirred for 2 hours, filtered, the filtered solid was washed 3 times with deionized water, and then washed 3 times with absolute ethanol, and dried to obtain solid glass microspheres 1 with anthraquinone compound...

Embodiment 3

[0041] Place the container in a water bath at 13°C, add 100 parts of chloropropyl-modified solid glass microspheres 1 obtained in Example 2, 30 parts of 1,5-diaminoanthraquinone, 500 parts of toluene and 30 parts of triethylamine , stirred and reacted for 7 hours, heated to 60°C, stirred for 2 hours, filtered, and the filtered solid was washed 3 times with deionized water, then washed 3 times with absolute ethanol, and dried to obtain a solid glass microstructure with an anthraquinone compound fixed on the surface. ball 2. The elemental analysis method was used to measure the N element content of the solid glass microspheres before and after immobilization, and the content of anthraquinone compounds immobilized on the surface of the solid glass microspheres was calculated to be 1.22 mmol / g.

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Abstract

The invention belongs to the field of water treatment, in particular to the field of treatment of pollutant containing wastewater, and relates to a preparation method of fixing an anthraquinone compound on the surface of an inorganic filler, and application thereof. The preparation method comprises the steps of reacting a chloro-propyl silane coupling agent with the inorganic filler to obtain a chloro-propyl group surface modified inorganic filler, and then carrying out dehydrochlorination reaction on the filler and an aminoanthraquinone compound in the presence of an acid-binding agent, thereby obtaining the inorganic filler with the anthraquinone compound fixed on the surface. The inorganic filler can accelerate the degradation of azo dyes, nitrates and other pollutants and can be used repeatedly. The raw materials are easily available, few reaction steps are required, the cost is low, and the inorganic filler can be widely used in treatment of wastewater containing azo dyes, nitrateand the like.

Description

technical field [0001] The invention relates to the field of water treatment engineering, in particular to a preparation method and application of an anthraquinone compound fixed on the surface of an inorganic filler. Background technique [0002] With the development of social economy, the continuous growth of population and the increasing demand for industrial and agricultural products, the discharge of many wastewater containing heavy metals and refractory pollutants is increasing, which seriously deteriorates the water quality and eventually affects the human body. It is a serious hazard to health as well as to the entire natural ecosystem. For example, azo dyes are the most widely used synthetic dyes in the printing and dyeing process of textiles and clothing due to their simple synthesis method and variable structure. They are mostly used for dyeing and printing of natural and synthetic fibers. Under some special conditions, it can decompose and produce more than 20 k...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/00C02F3/28C02F101/16C02F101/30
CPCC02F3/00C02F3/105C02F3/2806C02F2101/163C02F2101/308Y02W10/10
Inventor 严滨王如顺叶茜徐苏曾孟祥
Owner XIAMEN UNIV OF TECH
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