Layer-by-layer self-assembled coating modified cotton fiber heavy metal ion adsorption material and preparation method thereof

A technology of layer-by-layer self-assembly and heavy metal ions, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve the problems of secondary pollution of the environment and difficulty in recycling, so as to avoid secondary pollution, Guarantee the adsorption efficiency and overcome the effect that is difficult to recover
CN108854978AInactive Publication Date: 2018-11-23HANGZHOU DIANZI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU DIANZI UNIV
Publication Date
2018-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a layer-by-layer self-assembled coating modified cotton fiber heavy metal ion adsorption material. The adsorption material consists of a base material and a modified layer, wherein the base material is cotton fibers, the modified layer comprises one or more groups of layer-by-layer self-assembled coatings, and the layer-by-layer self-assembled coating is an electropositiveassembled layer and an electronegative assembled layer which are modified on the surface of the base material by virtue of an electrostatic layer-by-layer self-assembled coating. The modified cottonfiber not only has higher adsorption efficiency, but also overcomes the problems that the existing heavy metal adsorption material is difficult to recycle in an aqueous solution after completing the adsorption, and is high in application prospect.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of novel heavy metal ion adsorbents, in particular to a cotton fiber heavy metal ion adsorption material modified by layers of self-assembled coatings and a preparation method thereof. Background technique

[0002] Rapid industrialization has produced heavy metal pollution, in which the burning of fossil fuels, mining and smelting activities have exacerbated the intrusion of heavy metals into surface and groundwater bodies. Trace amounts of heavy metal ions in the environment can also cause harm to the ecological environment and human health. To reduce the negative effects of heavy metal ions in water bodies, many techniques, such as precipitation, chemical oxidation / reduction, membrane filtration, ion exchange, and adsorption, have been used to remediate heavy metals. Among these methods, adsorption has received more attention due to its high efficiency, technical flexibility and cost-effect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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