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Composite adsorbing material for removing copper ions in natural water body and preparation method of composite adsorbing material

A composite adsorption material and adsorption material technology, applied in the composite adsorption material and its preparation, the field of new materials, can solve the problems of short service life, can not be recycled and reused, etc., achieve long service life, high recycling rate and good effect Effect

Inactive Publication Date: 2013-01-09
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the short life of the existing adsorption materials and the shortcomings of being unable to recycle and reuse, and to provide a composite adsorption material for removing copper ions in water and a preparation method thereof, which is obtained by decomposing cellulose and hemicellulose Amino polysaccharides and polyols, etc. are loaded on the adsorption material through polymerization reaction under the action of foaming agent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Take the discarded rice husk, wash it several times with distilled water, then filter, dry at 50°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 700°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 600°C, and then pass H 2 Reduction for 1h, finally pass carbon source gas CH 4 React for 0.6h to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 3% polyvinyl alcohol, and heat and stir for 3 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 3 hours, and then dry at 60°C. This novel composite adsorption material can be obtained.

example 2

[0028] Take the discarded rice husk, wash it several times with distilled water, then filter it, dry it at 60°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 800°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 700°C, and then pass H 2 Reduction for 2h, finally pass carbon source gas CH 4 React for 1 hour to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 5% polyvinyl alcohol, and heat and stir for 4 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 4 hours, and then dry at 80°C. This novel composite adsorption material can be obtained.

example 3

[0030] Take the discarded rice husk, wash it several times with distilled water, then filter it, dry it at 55°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 750°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 650°C, and then pass H 2 Reduction for 2h, finally pass carbon source gas CH 4 React for 0.8h to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 4% polyvinyl alcohol, and heat and stir for 4 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 3 hours, and then dry at 70°C. This novel composite adsorption material can be obtained.

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Abstract

The invention discloses a composite adsorbing material prepared by loading rice husk powder on a carbon nanometer tube and belongs to the field of water purification. The invention also discloses a method for removing copper ions in water by utilizing the carbon nanometer tube with loaded rice husk powder, namely adsorbing the carbon nanometer tube with the loaded rice husk powder at any pH value for removing the copper ions in the water. An adsorbing method is adopted for removing the copper ions in the water, but the service life and recycling are obviously superior to that of conventional adsorbing materials. In addition, the method is simple to operate, and the composite adsorbing material has the advantages of easily available materials, low cost and high adsorbing quantity. The composite adsorbing material has high efficiency for treating natural water with the ionic concentration of 1-100mg / g. In such a way, the composite adsorbing material is used for removing the copper ions in the natural water and has good economic and environment benefits.

Description

technical field [0001] The invention relates to a composite adsorption material for removing copper ions in natural water bodies and a preparation method thereof, in particular to a novel material prepared by loading rice husk powder on carbon nanotubes, and belongs to the field of water purification treatment. Background technique [0002] Copper ion is one of the seven known trace elements. For plants, copper can directly trigger a series of physiological processes in plants such as photosynthesis, respiration, cell metabolism, and plant growth. Although copper is a vital trace element, it can become toxic when the concentration is increased to 10 to 50 times the usual level. The World Health Organization stipulates that the maximum allowable concentration of copper ions is 1.00mg / L. [0003] At present, the commonly used copper-containing wastewater treatment technologies in China mainly include chemical precipitation, electrolysis, adsorption, ion exchange and ion chela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62
Inventor 雷春生陈蓉蓉雷思宇
Owner CHANGZHOU UNIV
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