Adsorption material based on organic-metal modified charcoal and preparation method of adsorption material

A metal modification and adsorption material technology, which is applied in the direction of alkali metal compounds, alkali metal oxides/hydroxides, adsorption water/sewage treatment, etc., can solve the problems of poor adsorption performance and poor applicability, and achieve strong adsorption capacity, Increase the applicability, the effect of saving energy utilization

Pending Publication Date: 2019-12-03
罗金标
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an adsorption material based on organic-metal modified biochar and its preparation method, which solves the problem that the existing activated carbon material can only adsorb certain specific metal ions through physical adsorption, and is suitable for At the same time, it solves the problem of poor adsorption performance of most activated carbon adsorption materials on organic phosphorus pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of nut shell-based activated biochar: Weigh 500g of nut shells, dry them, place them in a high-energy planetary ball mill for 6-8 hours, and feed N into the vacuum tube furnace. 2 , and put the ball-milled nut shell powder into a vacuum tube furnace at a heating rate of 10°C / min, the temperature rises to 750-760°C, and heats for 4 hours. After the reaction, stop heating, and cool the material to room temperature, and Put the material in a high-energy planetary ball mill until all the materials pass through a 100-110 mesh screen to obtain a biochar prediction, and then add 300mL 0.1-0.15mol / L of dilute HCl solution, then add biochar, stir at a constant speed for 1-1.5min, filter the material, wash it with 1500-2000 mL of distilled water, then add 400mL of 0.08-0.12mol / L NaOH solution to another 1000mL beaker , then add acidified biochar, stir at a constant speed for 1-1.5h, filter the material, wash with 2000-2500mL distilled water, then heat the materia...

Embodiment 2

[0037] (1) Preparation of nut shell-based activated biochar: Weigh 500g of nut shells, dry them, place them in a high-energy planetary ball mill for 6-8 hours, and feed N into the vacuum tube furnace. 2, put the ball-milled nut shell powder into a vacuum tube furnace, the heating rate is 10 °C / min, the temperature is raised to 750-760 °C, and heated for 4 hours. After the reaction is completed, the heating is stopped, and the material is cooled to room temperature, and The material is then placed in a high-energy planetary ball mill for ball milling until all materials pass through 100-110 mesh sieves, and the biochar is expected to be obtained. L of dilute HCl solution, then add biochar as expected, stir at a constant speed for 1-1.5min, filter the material, wash it with 1500-2000 mL distilled water, and then add 400 mL of 0.08-0.12mol / L NaOH solution to another 1000 mL beaker , then add the acidified biochar as expected, stir at a constant speed for 1-1.5h, filter the materi...

Embodiment 3

[0042] (1) Preparation of nutshell-based activated biochar: Weigh 500g of nutshells, dry them, and place them in a high-energy planetary ball mill for 6-8h, and feed N into the vacuum tube furnace. 2 , put the ball-milled nut shell powder into a vacuum tube furnace, the heating rate is 10 °C / min, the temperature is raised to 750-760 °C, and heated for 4 hours. After the reaction is completed, the heating is stopped, and the material is cooled to room temperature, and The material is then placed in a high-energy planetary ball mill for ball milling until all materials pass through 100-110 mesh sieves, and the biochar is expected to be obtained. L of dilute HCl solution, then add biochar as expected, stir at a constant speed for 1-1.5min, filter the material, wash it with 1500-2000 mL distilled water, and then add 400 mL of 0.08-0.12mol / L NaOH solution to another 1000 mL beaker , then add the acidified biochar as expected, stir at a constant speed for 1-1.5h, filter the material...

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PUM

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Abstract

The invention relates to the technical field of charcoal adsorption materials and discloses an adsorption material based on organic-metal modified charcoal and a preparation method of the adsorption material. The adsorption material comprises the following raw materials: fruit shell based charcoal, iron chloride hexahydrate, zinc nitrate hexahydrate, nickel oxide, 2-aminobenzamide and a coordination catalyst. By adopting the adsorption material based on organic-metal modified charcoal and the preparation method of the adsorption material, Zn-Ni ferrite modified biological activated carbon is used, and Fe and Ni in Zn-Ni ferrite Ni0.6-0.75Zn0.25-0.4Fe2O4 have very intensive magnetism, so that most heavy metal ions such as Cu<2+>, Cd<2+> and Pb<2+> can be adsorbed; due to addition of 2-aminobenzamide which has a coordination function with Zn in the Zn-Ni ferrite, the formed zinc amide salt is combined with a phosphate radical PO43- generated through hydrolysis of organophosphorus, the generated zinc phosphate amide compound can be adsorbed by the biological activated carbon, and with the combination of a chemical reaction method and a physical adsorption mode, the adsorption functionof the biological activated carbon upon organophosphorus pollutants can be improved.

Description

technical field [0001] The invention relates to the technical field of biochar adsorption materials, in particular to an adsorption material based on organic-metal modified biochar and a preparation method thereof. Background technique [0002] Water pollution mainly refers to the phenomenon that pollutants discharged by human activities enter the water body, causing water quality to decline, and the use value to be reduced or lost. When the polluted water source is in direct contact with the human body, it will affect and threaten human health. Therefore, it is necessary to Water sources are maintained and purified to ensure the safety of water quality. Water body pollutants mainly include inorganic pollutants such as nitrogen, phosphorus and fluorine, heavy metal pollutants such as dye copper, lead, cadmium, mercury, etc., organic pollutants such as dyes and endocrine disruptors Among them, organophosphorus pesticide pollution is the pollution of the environment by organop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/20C02F101/30
CPCB01J20/223B01J20/20B01J20/06B01J20/28009B01J20/28054C02F1/281C02F1/283C02F1/285C02F1/288C02F2101/20C02F2101/30
Inventor 罗金标
Owner 罗金标
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