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Preparation method of modified polyaniline chelate resin with multiple coordination sites and adsorption performance of modified polyaniline chelate resin on heavy metal Cu<2+>

A polyaniline and modified technology, which is applied in the ion exchange of chelate compounds, water/sludge/sewage treatment, ion exchange, etc. There are technical promotion and application issues

Inactive Publication Date: 2014-07-16
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the chemical precipitation method can treat heavy metal wastewater, its high cost and secondary pollution make it difficult to apply in a large area; the energy consumption of the electrochemical method is too high; the use area of ​​the ion exchange method is too narrow; the efficiency of the air flotation method is too low
Various problems limit the promotion and application of existing technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Microemulsion A: Weigh 24.00 g cyclohexane and 0.50 g sodium dodecyl sulfate (SDS) into a 100 mL beaker; then weigh 3.00 g aniline and 3.90 g concentrated hydrochloric acid in a small beaker After mixing, pour it into cyclohexane containing SDS and mix with ultrasonic vibration for 3 min.

[0011] Microemulsion B: First weigh 24.00 g cyclohexane and 0.50 g SDS into a 100 mL beaker; then weigh 0.64 g potassium persulfate (KPS) and 6.00 g 30% H 2 O 2 After mixing in a small beaker, pour it into cyclohexane containing SDS, stir for 1 h at room temperature, and mix with ultrasonic vibration for 2 min.

[0012] Pour microemulsion B into microemulsion A and stir at room temperature. The color of the emulsion changes to white, light green, dark green, and black. Then pour the reaction mixture into a 250 mL three-necked flask, add a stirrer, The reaction mixture solution was stirred with a constant temperature stirrer. After 20 hours of reaction at room temperature, a bla...

Embodiment 2

[0015] Example 2: The preparation method is as in Example 1. Take 0.03g of modified polyaniline resin and add 10ml 2×10 -4 mol / L Cu 2+ In the solution, oscillate at a constant temperature of 25°C for 1 hour, take the adsorbed clear liquid, measure it with an atomic absorption spectrophotometer, and calculate its removal rate of 80%.

Embodiment 3

[0016] Example 3: The preparation method is as in Example 1. Take 0.03g of modified polyaniline resin and add 10ml 2×10 -4 mol / L Cu 2+ In the solution, oscillate at a constant temperature of 30°C for 1 hour, take the adsorbed clear liquid, measure it with an atomic absorption spectrophotometer, and calculate its removal rate of 85%.

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PUM

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Abstract

The invention belongs to the field of environmental protection and specifically relates to a preparation method of heavy metal ion-adsorbed high polymer material modified adsorbent resin and adsorption performance thereof. The preparation process comprises the following steps: synthesizing polyaniline, synthesizing diglycerol acyl chloride, and grafting the diglycerol acyl chloride on the polyaniline. The polyaniline is generally applied to a conductive material, a sensor, and the like, and not applied to the environmental protection field. The invention discloses a preparation technology of modified polyaniline chelate resin with multiple coordination sites, wherein material resource is wide, operation steps are simple, reaction conditions are gentle, and removing effect on metal ion Cu<2+> is over 90%.

Description

Technical field [0001] The invention belongs to the field of environmental protection, and specifically relates to a method for preparing a polymer material modified adsorption resin for heavy metal ion adsorption and its adsorption performance. Background technique [0002] Many heavy metals are indispensable materials for industrial production, scientific research and even national defense construction, and they play an important role in human production and life. However, most of them have serious harm to human beings and the ecological environment. With the continuous acceleration of urbanization and the rapid development of industrialization, a large amount of harmful metals and their compounds are discharged into the atmosphere and water bodies along with industrial and domestic wastes, directly threatening the ecological environment and human health. [0003] At present, the most commonly used methods for heavy metal wastewater treatment are chemical precipitation, electroc...

Claims

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Application Information

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IPC IPC(8): C08G73/02B01J45/00C02F1/42C02F1/62
Inventor 崔玉党庆毅孙国新
Owner UNIV OF JINAN
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