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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when powdered bentonite is directly used for water treatment, it is prone to problems such

Method used

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[0018] A method for producing graphene organically modified bentonite particles for humic acid treatment in water, including specific steps:

[0019] (1) Mix an appropriate amount of sodium bentonite and cetyltrimethylammonium bromide according to the ratio of 100g sodium bentonite to 22g cetyltrimethylammonium bromide, and add 8 times the total amount Deionized water, heated in a water bath at 70°C, stirred at 250 rpm for 3 hours, after the reaction is completed, the product is filtered, washed with deionized water twice, dried in an oven at 105°C, and ground Powdered for use;

[0020] (2) Add graphene to deionized water according to the material-to-liquid ratio of 1:1000, and ultrasonically disperse for 3 hours to uniformly disperse graphene in deionized water to obtain a graphene dispersion; the organic modification prepared in step (1) Bentonite was added to the graphene dispersion, placed in a microwave reactor, and oscillated at 600W microwave power for 50 minutes. After the...

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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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