Preparation method of hyperbranched polyester modified silver ion-loaded diatomite

A technology of hyperbranched polyester and diatomite, applied in chemical instruments and methods, other chemical processes, chemical/physical processes, etc., can solve problems such as dye organic pollutant pollution, achieve high adsorption efficiency, low production cost, The effect of good development prospects

Inactive Publication Date: 2020-11-17
夏振兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the serious problem of dye organic pollutants in the current printing and dyeing wastewater, the present invention provides a preparation method of hyperbranched polyester modified negatively loaded silver ion diatomite with h

Method used

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  • Preparation method of hyperbranched polyester modified silver ion-loaded diatomite
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  • Preparation method of hyperbranched polyester modified silver ion-loaded diatomite

Examples

Experimental program
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Example Embodiment

[0027] Example 1:

[0028] Hyperbranched polyesters modified supported silver ion Celite (CA-Ag @ DE), comprising the steps of:

[0029] (1) Preparation of silver ions supported through Celite (Ag @ DE) of

[0030] Take 15g dried Celite was added 0.20mol / L-ascorbic acid solution until completely wetted celite, dried to a constant weight at 105 ℃, and then the pulverized product is added to 0.02% silver nitrate solution, until the diatomaceous earth completely wetting, static to 24h after drying at 105 deg.] C, to give the load silver ions celite (Ag @ DE).

[0031] (2) Preparation of silver ions supported aminosilane-modified diatomaceous earth (A-Ag @ DE) of

[0032] Accurately weigh 10g load silver ions diatomaceous earth powder, placed in 250mL filled with a concentration of 0.5mol / L NaOH solution, stirred at room temperature IH, filtration, washing, and drying standby.

[0033] Diatomaceous earth powder was accurately weighed 1.5g after activation takes placed in a beaker ...

Example Embodiment

[0036] Example 2:

[0037] Preparation of silver-loaded ion Celite (Ag @ DE), the following steps:

[0038] 5g of oven dried Celite, added 0.25mol / L-ascorbic acid solution until completely wetted celite, dried to a constant weight at 105 ℃, and then the pulverized product is added to 0.025% silver nitrate solution, until the diatomaceous earth complete wetting to the static 30h, dried at 105 deg.] C, to give the load silver ions celite (Ag @ DE);

Example Embodiment

[0039] Example 3:

[0040] Hyperbranched polyesters modified supported silver ion Celite (CA-Ag @ DE), comprising the steps of:

[0041] (1) Preparation of silver ions supported through Celite (Ag @ DE) of

[0042] Taking 10g of dried Celite was added 0.20mol / L-ascorbic acid solution until completely wetted celite, dried to a constant weight at 105 deg.] C, the product was crushed and then added to 0.02% silver nitrate solution, until the diatom soil complete wetting, static to 24h after drying at 105 deg.] C, to give the load silver ions celite (Ag @ DE).

[0043] (2) Preparation of silver ions supported aminosilane-modified diatomaceous earth (A-Ag @ DE) of

[0044] Accurately weighed load silver ions by taking 10g of diatomaceous earth powder, placed in 250mL filled with a concentration of 0.5mol / L solution of NaOH, stirred at room temperature IH, filtration, washing, and drying standby.

[0045]Accurately weigh 3g activated diatomite powder, put into a beaker with 60 ml of...

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Abstract

The invention provides a preparation method of hyperbranched polyester modified silver ion-loaded diatomite, which comprises the following steps: modifying a silver ion-loaded diatomite by using aminosilane, and finally grafting hyperbranched polyester by using amidation to obtain the hyperbranched polyester modified silver ion-loaded diatomite material. The material has strong adsorption capacityon heavy metal ions and organic pollutants in printing and dyeing wastewater, has the performance of photocatalytic degradation of the organic pollutants, can realize enrichment and degradation of rhodamine B in polluted water, and has potential practical application value.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a preparation method of hyperbranched polyester modified negative-loaded silver ion diatomite. Background technique [0002] Dye organic pollutants are common water environmental pollutants, which can be enriched in the human body through the biological chain, thereby affecting the health of the human body, and seriously causing cancer. Therefore, the treatment of dye organic pollutants in printing and dyeing wastewater is imminent. At present, the most commonly used method to deal with such pollutants is the adsorption method, but the adsorption capacity and degradation capacity are relatively weak. Therefore, the development of an efficient, targeted, and degradable pollutant treatment technology has become a current focus. [0003] Diatomaceous earth is a porous material formed from the remains of diatoms, which has the advantages of large specific surfa...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01J20/14B01J20/30B01J20/26C02F1/28B01J31/06
CPCB01J20/14B01J20/262B01J31/069B01J35/004C02F1/285C02F2101/36C02F2101/38C02F2103/30C02F2305/10C08G83/001
Inventor 夏振兴
Owner 夏振兴
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