Preparation method of material with solar water evaporation and efficient metal ion adsorption functions

A technology of metal ions and evaporating water, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., to achieve low cost, good recycling, and good stability

Active Publication Date: 2020-09-18
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of the temperature field in the hot zone and the concentration gradient of metal ions after water evaporation and the accumulation of light-induced charges, new adsorption behaviors of metal ions in the hot zone of the channel may occur.

Method used

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  • Preparation method of material with solar water evaporation and efficient metal ion adsorption functions
  • Preparation method of material with solar water evaporation and efficient metal ion adsorption functions
  • Preparation method of material with solar water evaporation and efficient metal ion adsorption functions

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preparation example Construction

[0024] A method for preparing a material with solar energy evaporation of water and high-efficiency adsorption of metal ions, adopts the following steps:

[0025] Step 1: Process the dry wood into a thin board with a thickness of 6-10mm along the growth direction, and put the wood board into the mixed solution of potassium hydroxide and potassium sulfite, and then put the mixed solution of potassium hydroxide and potassium sulfite Heating to 90-100°C and keeping it for 3-7 hours, after cooling, take out the plank; the mixed solution of potassium hydroxide and potassium sulfite, the concentration of potassium hydroxide is 1-1.5mol / L, potassium sulfite The concentration is 0.5-1mol / L, and the mass ratio of potassium hydroxide to potassium sulfite is 1-2;

[0026] Step 2: Take out the wooden board obtained in step 1, put it into deionized water at room temperature and ultrasonically clean it at a frequency of 30kHz, measure the pH value of the deionized water after cleaning, and ...

Embodiment 1

[0035] like figure 1 Shown, have the preparation method of solar energy evaporation water and efficient adsorption metal ion material, adopt following steps:

[0036] Step 1: Process the dried Balsewood wood into thin boards with a thickness of 8mm along the growth direction, and put the boards into the mixed solution of potassium hydroxide and potassium sulfite, and then add the mixed solution of potassium hydroxide and potassium sulfite Heat to 95°C and keep it for 4 hours. After cooling, take out the plank; the mixed solution of potassium hydroxide and potassium sulfite has a concentration of potassium hydroxide of 1.5 mol / L and a concentration of potassium sulfite of 1 mol / L. , the mass ratio of potassium hydroxide to potassium sulfite is 1.5;

[0037] Step 2: Take out the wooden board obtained in step 1, put it into deionized water at room temperature and ultrasonically clean it at a frequency of 30kHz, measure the pH value of the deionized water after cleaning, and repe...

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Abstract

The invention provides a preparation method of a material with solar water evaporation and efficient metal ion adsorption functions. Wood serves as a raw material and is put in a heated metal mold toform a carbonization layer to prepare a photo-thermal conversion material, and part of lignin in the material is removed to enable the material to have the dual functions of photo-thermal evaporationof water and efficient adsorption of metal ions. According to the preparation method of a material with solar water evaporation and efficient metal ion adsorption functions, the prepared photo-thermalconversion material has good cycling stability and higher photo-thermal evaporation efficiency, and the raw material has the advantages of being renewable, low in cost and the like.

Description

technical field [0001] The invention belongs to the fields of energy utilization and biomass composite materials, and in particular relates to a preparation method of a material capable of evaporating water by solar energy and efficiently adsorbing metal ions. Background technique [0002] With the development of industry, the introduction of toxic metal ions has become a major environmental problem. Heavy metal ions are very toxic and can accumulate in the human body, causing serious damage to the hematopoietic system and cardiovascular system. Toxic metal ions must be removed from industrial wastewater before it is discharged into the environment. On the other hand, if the metal ions in the solution can be recycled, resources can also be saved to a certain extent and the environment can be protected. Traditional methods for extracting toxic metal ions from wastewater include chemical precipitation, electrochemical treatment, adsorption, filtration, ion exchange, and memb...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F1/28B01J20/24B01J20/30C02F101/20
CPCC02F1/14C02F1/28B01J20/24C02F2101/20Y02A20/212
Inventor 胡胜亮候巧常青王慧奇李宁薛超瑞杨金龙
Owner ZHONGBEI UNIV
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