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Magnetic graphene oxide composite material for removing tetracycline hydrochloride in aqueous solution and preparation method thereof

A technology of tetracycline hydrochloride and composite materials, applied in the field of magnetic graphene oxide composite materials and its preparation, can solve problems such as ecological system and human health hazards, and achieve the effect of fewer layers, low preparation cost and simple operation

Inactive Publication Date: 2019-01-01
NINGXIA UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, a large number of tetracycline hydrochloride antibiotics were also detected in the wastewater discharged from pharmaceutical factories, which caused great harm to the ecosystem and human health

Method used

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  • Magnetic graphene oxide composite material for removing tetracycline hydrochloride in aqueous solution and preparation method thereof
  • Magnetic graphene oxide composite material for removing tetracycline hydrochloride in aqueous solution and preparation method thereof
  • Magnetic graphene oxide composite material for removing tetracycline hydrochloride in aqueous solution and preparation method thereof

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Embodiment 1

[0048] Step 1. Preparation of graphene oxide (GO) based on the improved Hummers method: the preparation of graphene oxide by this method is divided into two steps, namely a pre-oxidation process and a re-oxidation process.

[0049] 1) Pre-oxidation process:

[0050] (1) Take a clean and dry 250mL three-necked flask, add 15mL of concentrated H with a mass fraction of 98% 2 SO 4 , 2.5g of K 2 S 2 o 8 , 2.5g of P 2 o 5 , heated to 90°C and stirred to dissolve completely.

[0051] (2) Add 4 g of graphite powder, and stir for 4 h.

[0052] (3) Slowly transfer the reaction solution along the wall of the vessel to a beaker filled with 500 mL of deionized water, let it stand for 12 hours to precipitate, slowly pour out the supernatant, and dry the precipitate in an oven at 50°C to obtain a pre-oxidized product.

[0053] 2) Reoxidation process:

[0054] (1) Take a clean and dry 250mL three-necked flask, add 36mL of concentrated sulfuric acid with a mass fraction of 98%, add 5g...

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Abstract

The invention relates to a magnetic graphene oxide composite material for removing tetracycline hydrochloride in an aqueous solution and a preparation method thereof. The magnetic graphene oxide composite material is prepared by mixing graphene oxide and Fe3O4 nano particles according to a mass ratio of (2 to 1)-(1 to 2). The magnetic graphene oxide composite material is more environmentally friendly and is capable of effectively removing tetracycline hydrochloride in the aqueous solution. The Fe3O4 nano particles are compounded with graphene oxide to obtain the magnetic graphene oxide composite material which is an adsorption material; the material is capable of effectively adsorbing and removing tetracycline hydrochloride in the aqueous solution; the magnetic effect of the material is capable of ensuring that the adsorbent material is effectively separated from the adsorbed and treated aqueous solution; meanwhile, the problem of secondary pollution caused when graphene oxide is usedas the adsorbent is solved.

Description

technical field [0001] The invention relates to a magnetic graphene oxide composite material for removing tetracycline hydrochloride in aqueous solution and a preparation method thereof. Background technique [0002] my country now produces more than 1,300 kinds of chemical raw materials every year, among which the annual output of antibiotics reaches 33,000 tons. Antibiotics are initially designed to produce biochemical activity at the end of treatment at low physiological doses to achieve therapeutic purposes. However, many antibiotics may also bind to non-target receptors at low concentrations, resulting in various unpredictable physiological effects. This subtle effect may be gradually amplified over time through the continuous input of antibiotics, and ultimately have profound and irreversible effects on wildlife and even ecosystems. At present, a variety of antibiotic substances are found in surface water, sewage, groundwater and drinking water. Most of these substanc...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/38C02F103/34
CPCB01J20/0229B01J20/20B01J20/28009C02F1/281C02F2101/38C02F2103/343
Inventor 吴玉花白红存张云敬李昊丁玉静马倩
Owner NINGXIA UNIVERSITY
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