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Preparation method of material with solar energy evaporation of water and efficient adsorption of metal ions

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: 2022-03-25
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 energy evaporation of water and efficient adsorption of metal ions
  • Preparation method of material with solar energy evaporation of water and efficient adsorption of metal ions

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preparation example Construction

[0024] The preparation method of the material with solar energy evaporation water and efficient adsorption of metal ions adopts the following steps:

[0025] Step 1: Process the dried wood into a thin board with a thickness of 6-10mm along the growth direction, and put the 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 for 3-7 hours, after cooling, take out the wooden board; 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 and 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 30 kHz, measure the pH value of the deionized water after cleaning, and ...

Embodiment 1

[0035] like figure 1 As shown in the figure, the preparation method of the material with solar evaporation of water and high-efficiency adsorption of metal ions adopts the following steps:

[0036] Step 1: Process the dried bals fir wood into a thin board with a thickness of 8mm along the growth direction, and put the board into the mixed solution of potassium hydroxide and potassium sulfite, and then put the mixed solution of potassium hydroxide and potassium sulfite Heated to 95 ° C and kept for 4 hours, after cooling, the wooden board was taken out; the mixed solution of potassium hydroxide and potassium sulfite, the concentration of potassium hydroxide was 1.5mol / L, and the concentration of potassium sulfite was 1mol / 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 30 kHz, measure the pH value of...

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Abstract

The invention provides a preparation method of a material with solar energy evaporating water and highly efficient adsorption of metal ions, using wood as a raw material, placing it in a heated metal mold to form a carbonized layer to prepare a photothermal conversion material, and removing part of the wood in the material Elements, so that the material has dual functions of photothermal evaporation of water and efficient adsorption of metal ions. The preparation method disclosed by the present invention has solar energy evaporation of water and efficient adsorption of metal ions. The prepared photothermal conversion material has good cycle stability, higher photothermal evaporation efficiency, and the raw materials have the advantages of renewability and low cost. .

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 with solar energy evaporating water and high-efficiency metal ion adsorption. Background technique [0002] With the development of industry, the introduction of toxic metal ions pollution 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 in industrial wastewater must be removed before it can be discharged into the environment. On the other hand, if the metal ions in the solution can be recycled, resources can be saved to a certain extent and the environment can be protected. Traditional methods to extract toxic metal ions from wastewater include chemical precipitation, electrochemical treatment, adsorption, filtration, ion exchange and membran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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