Composite magnetic nano-particle adsorbent and preparation method and application thereof

A magnetic nanoparticle and composite magnetic technology, applied in separation methods, chemical instruments and methods, adsorbed water/sewage treatment, etc., can solve the problems of insufficient adsorption of macromolecular dyes, difficulty in harmless treatment, and limited use range, etc. Achieve ideal adsorption effect, easy operation, high recovery rate and regeneration rate
CN104998623AActive Publication Date: 2015-10-28ZHEJIANG GONGSHANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG GONGSHANG UNIVERSITY
Publication Date
2015-10-28

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Abstract

The invention discloses a composite magnetic nano-particle adsorbent. The composite magnetic nano-particle adsorbent is composed of a carrier and an absorbing component, the carrier is a core-shell composite micro-sphere, the core of the core-shell composite micro-sphere is made of ferroferric oxide, the shell is made of a polymer of porous silicon dioxide, a silane coupling agent and ionic liquid, and the size of the core-shell micro-sphere is 200-600 nm. The magnetic composite nano-particle adsorbent has the advantages that the particle size is uniform, the dispersity is good, the specific saturation magnetization is high, the number of active groups is rich, and the removing effect for azo dyes in water is good.
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Description

Technical field

[0001] The invention relates to a composite magnetic nano particle adsorbent, a preparation method of the composite magnetic nano particle adsorbent, and the adsorption application of the composite magnetic nano particle adsorbent to the azo dye orange G. Background technique

[0002] Azo dyes are currently the most commonly used dyes in the printing and dyeing industry. They usually have one or more azo bonds (–N=N–), and have associated aromatic systems and auxochromes (–OH,–SO). 3 Etc.) Features. Azo dyes have poor biodegradability, high toxicity and potential mutagenic and carcinogenic hazards.

[0003] Traditional treatment methods include adsorption, coagulation, biological oxidation, chemical and physical chemical methods, etc. Among them, the adsorption method has become the most widely studied and used because of its relatively low cost, avoidance of secondary pollution and non-toxic side effects. method. The key to this technology is to select high-perfo...

Claims

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