Preparation method of metal ion adsorbent

A technology of metal ions and adsorbents, which is applied in the field of preparation of metal ion adsorbents, can solve the problems of poor adsorption effect and small adsorption amount of heavy metal ions, etc., and achieve the effect of increasing adsorption performance, improving binding sites, and improving adsorption performance

Inactive Publication Date: 2019-01-04
张剑
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Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the current metal ion adsorbent has poor adsorption effect and the adsorption capacity of heavy metal ions is small, the present invention provides a preparation method of the metal ion adsorbent

Method used

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  • Preparation method of metal ion adsorbent

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Embodiment Construction

[0019] The preparation method of the modified liquid is to mix the sea mud and the acetic acid solution at a mass ratio of 1:5-7, stir and mix, filter, and collect the filtrate to obtain the modified liquid.

[0020] The additive is formed by mixing liposome and mesoporous nano silicon dioxide in a mass ratio of 4:2-4.

[0021] The surfactant is any one of sodium dodecylbenzenesulfonate and sodium lauryl sulfate.

[0022] The auxiliary agent is any one of ammonium bicarbonate and sodium bicarbonate.

[0023] A preparation method of a metal ion adsorbent, the preparation method comprising the steps of:

[0024] (1) Take the bamboo for crushing, pass through a 100-mesh sieve, collect the sieved particles, mix the sieved particles with the ethanol solution at a mass ratio of 1:4-6, and steam explode. The condition of steam explosion is 4.2-4.6MPa, and the pressure is maintained 100-130s, collect the steam explosion, filter, collect the filter residue, mix the filter residue wit...

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Abstract

The invention relates to a preparation method of a metal ion adsorbent and belongs to the technical field of adsorbents. According to the preparation method, bamboo is adopted as a carrier, pores in the bamboo are increased through a steam blasting method, an internal structure of the bamboo is destroyed, the adsorption performance is improved, and then the bamboo is put into a carbonization furnace for pre-carbonization; complete carbonization of the interior of the bamboo is avoided through pre-carbonization, internal materials of the bamboo are partially decomposed or degraded, the adsorption and binding capability is improved, and then composite glue and sea mud are added; active substances in the sea mud can be well combined with the composite glue to achieve wrapping of pre-carbonized particles, metal substances in the sea mud are utilized to promote cross-linking in the composite glue for improving the adsorption performance, the composite glue is cross-linked with acrylic acidunder the action of sodium hydroxide, and under the action of N,N-dimethyl amide and sodium hydrosulfide, sulfydryl is added to the surface of the adsorbent, so that the adsorption performance for metal ions is improved.

Description

technical field [0001] The invention relates to a preparation method of a metal ion adsorbent, belonging to the technical field of adsorbents. Background technique [0002] Metal ion adsorbent is a highly efficient natural polymer adsorbent, which not only has efficient removal performance for heavy metal ions, but also is biodegradable. It is a new type of efficient and environment-friendly heavy metal ion adsorbent. With the intensification of the world's water resource crisis, the shortage of water resources has become a bottleneck that seriously restricts the sustainable development of my country's national economy, and heavy metal pollution is one of the main types of pollution suffered by water sources in many areas of our country. Because heavy metal ions are difficult to degrade and destroy naturally, when their concentration exceeds a certain limit, it will cause great harm to the environment, especially some heavy metal ions can accumulate in aquatic organisms and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F101/20
CPCB01J20/045B01J20/20B01J20/22B01J20/267C02F1/288C02F2101/20
Inventor 张剑施衍
Owner 张剑
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