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Production method of graphene organically-modified bentonite particles for treating humic acid in water

A production method and graphene technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult solid-liquid separation and difficult recycling, and achieve perfect pore structure, The effect of fast adsorption rate and multiple layers

Inactive Publication Date: 2019-01-22
WUHU PENGLEI NEW MATERIAL
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Problems solved by technology

However, when powdered bentonite is directly used for water treatment, it is prone to problems such as difficult solid-liquid separation and difficult recycling, which limits its practical application.

Method used

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Embodiment Construction

[0018] A kind of production method of the graphene organic modification bentonite particle that is used for the treatment of humic acid in water, comprises and like specific steps:

[0019] (1) According to the ratio of every 100 grams of sodium bentonite to 22 grams of cetyl trimethyl ammonium bromide, mix an appropriate amount of sodium bentonite with cetyl trimethyl ammonium bromide, and add 8 times the total amount of Deionized water, heated in a water bath at 70°C, stirred at a speed of 250 rpm for 3 hours, filtered the product after the reaction was completed, washed twice with deionized water, dried in an oven at 105°C, and ground into powder for use;

[0020] (2) Add graphene into deionized water according to the ratio of material to liquid of 1:1000, and ultrasonically disperse for 3 hours to disperse graphene evenly in deionized water to obtain graphene dispersion liquid; organically modified Bentonite was added to the graphene dispersion, placed in a microwave reac...

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Abstract

The invention discloses a production method of graphene organically-modified bentonite particles for treating humic acid in water. Sodium bentonite is modified with an organic matter, the obtained organically modified bentonite is modified with graphene under the action of microwaves, and the graphene with a single-layer structure enters the interlayer of the organically modified bentonite to makethe surface and the internal of the organic bentonite stripped to a certain degree, so the agglomeration behavior of graphene is effectively overcome, the original tight and thick structure of the organic bentonite is changed, and original pores and gaps are increased; and an appropriate amount of starch is added as a pore-forming agent, and further acts in a high-temperature roasting environmentin order to make a sheet have a higher peeling degree from the surface than powder, and achieve a folding, curling and multilayer surface, a loose structure, a thin sheet, a perfect and fine pore structure and a larger specific surface, so the graphene modified organic bentonite particles have a micro-porous structure.

Description

technical field [0001] The invention relates to the technical field of bentonite, in particular to a production method of graphene organically modified bentonite particles used for humic acid treatment in water. Background technique [0002] Humic acid is a kind of natural water-soluble polymer formed by animal and plant residues through complex biological or chemical actions, accounting for 50-80% of the total organic matter in the ecosystem. Humic acid easily reacts with drinking water chlorine disinfectants to produce by-products such as chloroform, chloroacetic acid, and chlorophenol, which have the effects of "carcinogenic, teratogenic, and mutagenic" on humans. Therefore, how to effectively deal with humic acid in water has attracted people's attention. At present, common methods for removing humic acid in water include membrane filtration, chemical oxidation, coagulation, and adsorption. Among them, the adsorption method has become an ideal method for humic acid trea...

Claims

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Application Information

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IPC IPC(8): B01J20/22C02F1/28B01J20/30C02F101/34
CPCB01J20/12B01J20/20B01J20/22C02F1/281C02F1/285C02F2101/34
Inventor 王浩
Owner WUHU PENGLEI NEW MATERIAL
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