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Silver phosphate/resin compound and use thereof

A resin composite, silver phosphate technology, applied in chemical/physical process, organic compound/hydride/coordination complex catalyst, light water/sewage treatment, etc., can solve the problems of heavy metal and phosphate pollution, improper use, etc. , to achieve the effect of reducing costs and investment, avoiding secondary pollution, and facilitating recovery and reuse

Inactive Publication Date: 2014-11-05
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the semiconductor Ag 3 PO 4 Improper use may cause heavy metal and phosphate pollution that are more serious than organic pollutants. How to efficiently and safely use visible light Ag 3 PO 4 Catalytic degradation of organic pollutants in water has not been reported

Method used

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  • Silver phosphate/resin compound and use thereof
  • Silver phosphate/resin compound and use thereof

Examples

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preparation example Construction

[0027] Step 1, the preparation of phosphate ion resin: according to mass volume ratio (g / mL) be 1: 25-1: 30 take the anion exchange resin that exchange capacity is 3.2mmol / g and the Na of 0.1mol / L 3 PO 4 solution; put the anion exchange resin in a stoppered Erlenmeyer flask, wash with distilled water 3 to 5 times, decant the washed distilled water, and then add 0.1mol / L Na 3 PO 4 solution, after shaking for 5-10 minutes, let it stand for 3-5 hours, and weigh the above 0.1mol / L Na 3 PO 4 Solution equal volume of 0.1mol / L Na 3 PO 4 solution, replacing 0.1mol / L Na 3 PO 4 solution; repeat the above operation three times, wash the ion exchange resin after the above treatment with distilled water for 3 to 5 times, filter, put it in a drying oven and dry it to obtain PO 4 3- resin.

[0028] Step 2, preparation of silver phosphate / resin composite containing PVP: Weigh 0.1mol / L of AgNO according to the volume-to-mass ratio (g / mL) of 1000:1-100000:1 3 solution and PVP, stir an...

Embodiment 1

[0034] Step 1, the preparation of phosphate ion resin: take the anion exchange resin of 2.5g (exchange capacity is 3.2mmol / g) and place in the Erlenmeyer flask with stopper of 250mL, wash 3~5 times with distilled water, decant after washing of distilled water, and then add 0.1mol / L of Na 3 PO 4 Solution 64mL, shake for 5min, let stand for 3.5h, replace with new 0.1mol / L Na 3 PO 4 Solution 64mL, repeat the above operation three times, wash the ion exchange resin after the above treatment with distilled water for 3 to 5 times, filter, put it in a drying oven to dry, and then obtain PO 4 3- resin.

[0035] Step 2, preparation of silver phosphate / resin composite containing PVP: Weigh the above PO 4 3- Put 2.5g of anion resin in a beaker, measure 100mL of 0.1mol / L AgNO 3 solution, and add 10mgPVP, after dissolving, pour into the above beaker to soak PO 4 3- Anion resin for 45 minutes, rinse the treated sample with distilled water 3-5 times, pour off the remaining distilled...

Embodiment 2

[0037] Step 1, the preparation of phosphate ion resin: take the anion exchange resin of 2.5g (exchange capacity is 3.2mmol / g) and place in the Erlenmeyer flask with stopper of 250mL, wash 3~5 times with distilled water, decant after washing of distilled water, and then add 0.1mol / L of Na 3 PO 4 Solution 62.5mL, after shaking for 8min, let it stand for 3h, weigh the above 0.1mol / L Na 3 PO 4 Solution equal volume of 0.1mol / L Na 3 PO 4 solution, replacing 0.1mol / L Na 3 PO 4 solution; repeat the above operation three times, wash the ion exchange resin after the above treatment with distilled water for 3 to 5 times, filter, put it in a drying oven and dry it to obtain PO 4 3- resin.

[0038] Step 2, preparation of silver phosphate / resin composite containing PVP: Weigh the above PO 4 3- Put 2.5g of anion resin in a beaker, measure 62.5mL of 0.1mol / L AgNO 3 solution, and add 62.5mg of PVP, stir and dissolve; pour the above mixture into the above beaker to soak PO 4 3- Re...

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Abstract

The invention discloses a silver phosphate / resin compound. A preparation method of the silver phosphate / resin compound comprises the following steps of weighing an anion exchange resin and a Na3PO4 solution, washing the anion exchange resin by distilled water 3-5 times, draining the used distilled water, adding the Na3PO4 solution into the anion exchange resin, carrying out oscillation and standing, weighing a Na3PO4 solution having the volume equal to that of the used Na3PO4 solution, replacing the used Na3PO4 solution by the newly weighed Na3PO4 solution, repeating the above processes three times, washing the treated anion exchange resin by distilled water 3-5 times, carrying out filtration and drying to obtain PO4<3-> resin, weighing an AgNO3 solution and PVP, carrying out stirring for dissolution to obtain a mixed solution, weighing the PO4<3-> resin, pouring the mixed solution into the PO4<3-> resin, carrying out PO4<3-> resin immersion, washing the treated sample 3-5 times by distilled water, discarding the residual distilled water, and carrying out drying to obtain the silver phosphate / resin compound. The silver phosphate / resin compound has large particle sizes, can treat and purify waste water by natural light / sunshine catalytic oxidation, can prevent secondary pollution may produced in waste water treatment and is convenient for photocatalyst recovery and reuse.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a silver phosphate / resin compound. The invention also relates to the application of the silver phosphate / resin compound, in particular to a wastewater treatment method for the silver phosphate / resin compound. Background technique [0002] The use of solar energy and the control of environmental pollution are major issues that human beings face and need to be solved urgently. Since someone discovered that TiO 2 As a photoanode, UV irradiation can decompose H 2 O is H 2 and O 2 Since nano-TiO 2 Semiconductor photocatalytic oxidation technology has received extensive attention in the field of environmental pollution control. However, the commonly used wide-bandgap photocatalytic material TiO 2 , because the quantization efficiency is low, about 4%, and the photocatalytic reaction can only be carried out under ultraviolet light, which greatly limits its uti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26C02F1/30
CPCY02W10/37
Inventor 崔康平许为义王郑朱越
Owner HEFEI UNIV OF TECH
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