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Method for preparation of adsorption material by using maple leaf

An adsorption material, maple leaf technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as unsuitable for large-scale application, and achieve high production efficiency, wide source of raw materials, and simple process

Inactive Publication Date: 2016-05-04
吴涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, effective separation processes for removing heavy metal ions in sewage include: precipitation, ion exchange, electrochemical treatment, membrane technology, evaporative solidification, reverse osmosis and electrodialysis, etc., but the application of these technologies is sometimes limited by technology and economy. In recent years, the method of removing heavy metals through the adsorption of living organisms has attracted attention. This method mainly uses hyperaccumulated plants, algae, and microorganisms to have a large adsorption capacity for heavy metals to remove heavy metals in wastewater, but using living organisms to remove heavy metals Treatment of sewage is limited by the biomass and growth characteristics of the organism itself, so so far this type of method is not suitable for large-scale applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Choose an appropriate amount of maple leaves to soak in clean water, wash to remove dirt and dust, then wash with distilled water, and then put them in an oven at 40°C to dry to constant weight, then crush the dried maple leaves with a pulverizer, and pass 200 Mesh sieve, weigh 10g powder and put it into a container, then pour isopropanol with a solubility of 20% into the container, and keep stirring to make it fully react, filter the solution after 10 hours, and clean it with distilled water to clean the product Put it in a drying oven at 40°C for drying. After drying for 20 hours, put the dried product back into the container, then pour 0.1mol / L NaOH solution, and keep stirring to make it fully react, 2 hours Finally, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 40°C. After drying for 20 hours, the dried product is put back into the container, and then poured into 0.5mol / L lemon Acid solution, stirred and react...

Embodiment 2

[0026] Select an appropriate amount of maple leaves to soak in clean water, wash to remove dirt and dust, then wash with distilled water, and then put them in an oven at 60°C for drying to constant weight, then crush the dried maple leaves with a pulverizer, and pass through 100°C. Mesh sieve, weigh 20g powder and put it into a container, then pour isopropanol with a solubility of 20% into the container, and keep stirring to make it fully react, filter the solution after 12 hours, and clean it with distilled water to clean the product Put it in a drying oven at 50°C for drying. After drying for 15 hours, put the dried product back into the container, then pour 0.5mol / L NaOH solution, and keep stirring to make it fully react, 1 hour Finally, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 50°C. After drying for 15 hours, the dried product is put back into the container, and then poured into 1mol / L citric acid solution, stir...

Embodiment 3

[0028] Select an appropriate amount of maple leaves to soak in clean water, wash to remove dirt and dust, then wash with distilled water, and then put them in an oven at 60°C for drying to constant weight, then crush the dried maple leaves with a pulverizer, and pass through 100°C. Mesh sieve, weigh 20g powder and put it into a container, then pour isopropanol with a solubility of 20% into the container, and keep stirring to make it fully react, filter the solution after 15 hours, and clean it with distilled water to clean the product Put it in a drying oven at 60°C for drying. After drying for 10 hours, put the dried product back into the container, then pour 0.5mol / L NaOH solution, and keep stirring to make it fully react, 1 hour Finally, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 60°C. After drying for 10 hours, the dried product is put back into the container, and then poured into 1mol / L citric acid solution, stir...

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Abstract

The invention discloses a maple leaf adsorption material and a preparation method thereof The method is as below: first cleaning and drying maple leaves to a constant weight; crushing by a pulverizer and screening; mixing the powder with isopropyl alcohol; sufficiently reacting under stirring, filtering, washing with distilled water, drying; re-mixing the dried product with NaOH solution, sufficiently reacting under stirring, filtering, washing with distilled water, and drying; and re-mixing the dried product with a citric acid solution, sufficiently reacting under stirring, finally washing with distilled water to a neutral state, filtering and drying to obtain a maple leaf adsorption material. The process is simple, environmentally friendly, highly efficient, and has a wide range of sources of raw materials and low cost; and the prepared adsorption material is easy for regeneration.

Description

technical field [0001] The invention relates to an adsorbent material, in particular to an adsorbent material and method prepared by modification using plant leaves as raw materials, and belongs to the field of adsorbent materials. Background technique [0002] With the development of industrialization in recent decades, the use of heavy metals has become more and more extensive, and the accompanying heavy metal pollution has become more and more serious, especially the discharge of heavy metal-containing wastewater. Wastewater, waste gas and waste residues discharged from many industries such as electroplating, mineral processing and tanning often lead to heavy metal pollution in the water environment. Various harmful substances in wastewater are enriched into the biological chain through the water body, and finally enter the human body, destroying normal physiological and metabolic activities. The heavy metal ions contained in it are one of the most serious environmental p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24
Inventor 吴涛
Owner 吴涛
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