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Conductive polyaniline humic acid complex, preparation method thereof and application of mercury ion in adsorbed water body

A conductive polyaniline and humic acid technology, applied in the fields of adsorption water/sewage treatment, non-metallic conductors, organic matter conductors, etc., can solve the problems of aqueous solution stability and restricted activity, and achieve the effect of improving stability and activity

Inactive Publication Date: 2011-09-07
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability and activity of its aqueous solution are subject to the pH environment of the water body.

Method used

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  • Conductive polyaniline humic acid complex, preparation method thereof and application of mercury ion in adsorbed water body
  • Conductive polyaniline humic acid complex, preparation method thereof and application of mercury ion in adsorbed water body
  • Conductive polyaniline humic acid complex, preparation method thereof and application of mercury ion in adsorbed water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) After dispersing the humic acid with an appropriate amount of deionized water, add aniline and hydrochloric acid to stir and set the volume to 250mL, so that the mass of humic acid is 0.05g, the volume of aniline is 1.5mL, and the volume of hydrochloric acid is 3.0mL;

[0017] 2) Ammonium persulfate and hydrochloric acid are made into an aqueous solution, so that the molar ratio of ammonium persulfate and the aniline monomer in the solution obtained in step 1) is 1:1;

[0018] 3) Slowly add the hydrochloric acid solution of ammonium persulfate into the fully stirred reaction solution, stir magnetically, and react for 10 hours;

[0019] 4) The resulting product is washed with deionized water and suction filtered until the filtrate is colorless;

[0020] 5) Dry the solid matter obtained in the above step 4) in a vacuum at 65° C. to obtain a conductive polyaniline humic acid composite.

Embodiment 2

[0022] 1) After dispersing the humic acid with an appropriate amount of deionized water, add aniline and hydrochloric acid to stir and set the volume to 250mL, so that the mass of humic acid is 0.5g, the volume of aniline is 3.7mL, and the volume of hydrochloric acid is 7.0mL;

[0023] 2) Ammonium persulfate and hydrochloric acid are made into an aqueous solution, so that the molar ratio of ammonium persulfate and the aniline monomer in the solution obtained in step 1) is 2:1;

[0024] 3) Slowly add the hydrochloric acid solution of ammonium persulfate into the fully stirred reaction solution, stir magnetically, and react for 7 hours;

[0025] 4) The resulting product is washed with deionized water and suction filtered until the filtrate is colorless;

[0026] 5) Dry the solid matter obtained in the above step 4) in a vacuum at 80° C. to obtain a conductive polyaniline humic acid composite. Its topography is as figure 1 shown.

[0027] figure 1 is the scanning electron mic...

Embodiment 3

[0029] 1) After dispersing the humic acid with an appropriate amount of deionized water, add aniline and hydrochloric acid to stir and set the volume to 250mL, so that the mass of humic acid is 2.0g, the volume of aniline is 6.0mL, and the volume of hydrochloric acid is 9.5mL;

[0030] 2) Ammonium persulfate and hydrochloric acid are made into an aqueous solution, so that the molar ratio of ammonium persulfate and the aniline monomer in the solution obtained in step 1) is 1.5:1;

[0031] 3) Slowly add the hydrochloric acid solution of ammonium persulfate into the fully stirred reaction solution, stir magnetically, and react for 12 hours;

[0032] 4) The resulting product is washed with deionized water and suction filtered until the filtrate is colorless;

[0033] 5) Dry the solid matter obtained in the above step 4) in a vacuum at 95° C. to obtain a conductive polyaniline humic acid composite.

[0034] 2. Conductive polyaniline humic acid complex adsorbs mercury ions in water...

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Abstract

The invention discloses a conductive polyaniline humic acid complex, a preparation method thereof and an application of mercury ion in an adsorbed water body and the preparation method comprises the following steps: adding a certain amount of humic acid into aniline and hydrochloric acid monomer solution; stirring by magnetic force; adding a moderate amount of oxidizing agent ammonium persulphateto realize polymerization; washing and filtering after polymerization until the filter liquor is colorless; drying to obtain the nano complex as shown in a scanning electron microscope picture; adding a moderate amount of the complex into mercury-contained simulated waste water in room temperature; oscillating for 24 hours; filtering; measuring the concentration of mercury by atomic fluorescence after the filter liquor is diluted. Results prove that the conductive polyaniline humic acid complex has superior adsorption property on mercury ions under extensive pH conditions.

Description

Technical field: [0001] The invention relates to a conductive polymer, in particular to a conductive polymer humic acid compound and a preparation method thereof, and also relates to the application of the compound in absorbing mercury ions in water bodies. Background technique: [0002] With the sustained and rapid economic development, more and more mercury-containing wastewater is discharged into the environment, which not only seriously pollutes the environment but also poses a huge threat and restriction to the sustainable development of the whole society. Heavy metal mercury cannot be biodegraded after entering the environment, and participates in the food chain cycle, and eventually accumulates in the organism, destroying the normal physiological metabolism of the organism, which causes many environmental problems. People have been making continuous efforts to find new materials and technologies for dealing with heavy metal pollution. Conductive polymer nanomaterials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08L79/02C08L99/00H01B1/12C02F1/28C02F1/62C02F101/20
Inventor 张娅李琴唐荣孙立翟建平
Owner NANJING UNIV