A graphene-calixarene-fe 3 o 4 Preparation and application of high-efficiency catalytic degradation of methylene blue

A technology of methylene blue and -fe3o4, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, water/sludge/sewage treatment, etc., can solve the problems of poor graphene dispersion, environmental pollution, obstacles Apply functionalization and other issues to achieve the effect of promoting catalytic degradation, solving dispersion problems, and breaking through research and development bottlenecks

Active Publication Date: 2020-05-22
NANTONG VOCATIONAL COLLEGE
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  • Claims
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Problems solved by technology

Although, RGO is loaded with Fe 3 o 4 NPs have made great progress, however, there are still three great challenges: First, graphene is poorly dispersed in water due to its easy auto-aggregation in water, hindering its application and further functionalization in water systems , at present, graphene functionalization in most literatures is carried out in organic solvents, but such graphene functionalization will bring pollution to the environment
Second, although the preparation of RGO-Fe 3 o 4 NPs composites have made great progress, however, Fe 3 o 4 The uniformity of dispersion of NPs on the surface of RGO is still a serious problem
However, since most calixarenes are insoluble in water, the application of calixarenes is usually carried out in organic solvents such as toluene, which brings pollution to the environment

Method used

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  • A graphene-calixarene-fe <sub>3</sub> o <sub>4</sub> Preparation and application of high-efficiency catalytic degradation of methylene blue
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  • A graphene-calixarene-fe <sub>3</sub> o <sub>4</sub> Preparation and application of high-efficiency catalytic degradation of methylene blue

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Embodiment

[0033] The present invention self-assembles amphiphilic aminocalixarene T onto the surface of reduced graphene oxide to obtain a water-dispersed RGO-T composite, and then pre-prepared iron ferric oxide nanoparticles (Fe 3 o 4 NPs) self-assembled onto the surface of RGO-T to obtain RGO-T-Fe 3 o 4 NPs composite, then RGO-T-Fe 3 o 4 NPs applied to H 2 o 2 Catalyst for the oxidation of the organic dye methylene blue (MB).

[0034] 1. Graphene-calixarene-Fe 3 o 4 preparation of

[0035] Dissolve 1.0mg calixarene and 9.0mg graphene oxide GO in water under ultrasonic conditions respectively, mix them and stir for 24h, centrifuge in a high-speed centrifuge at 10,000rpm for 20min, wash, and dry in a vacuum oven for 48h to obtain GO-T . Weigh 10 mg of GO-T, add 100 μl of hydrazine hydrate and 200 μl of ammonia water respectively, then heat the mixture to 75°C, stir for 8 hours with magnetic force, centrifuge, wash with water, and centrifuge for 3 consecutive times, and finally...

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Abstract

The invention discloses a preparation method of a novel ternary nanocomposite graphene-calixarene-Fe3O4 and an application effect of RGO-T-Fe3O4 in catalyzing H2O2 for oxidative degradation of methylene blue. The research of the invention successfully breaks through the bottleneck of dyeing and printing enterprise research and development, and a novel nanometer material which is fast and efficient, can be recycled and is used for catalytic degradation of dyes is researched and developed for dyeing and printing enterprises.

Description

technical field [0001] The invention belongs to the field of compound preparation, in particular to a graphene-calixarene-Fe 3 o 4 The preparation and application of high-efficiency catalytic degradation of methylene blue. Background technique [0002] 1. Treatment of dyes in wastewater [0003] With the rapid development of industry, the discharge of waste water has gradually increased, the types and quantities of harmful substances in waste water have increased rapidly, and the pollution of water bodies by harmful substances has gradually become extensive and serious. Among the many pollutants in waste water, organic dyes have a wide range of sources and are harmful One of the larger pollutants, it poses a great threat to the health of organisms and human beings. According to statistics, my country emits about 1.16×10 9 m 3 Printing and dyeing wastewater, therefore, the removal (or degradation) of organic dyes has become one of the subjects that scientific and technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28C02F1/72C02F101/30
Inventor 周君聂莹李百裕黄艳芳朱蓓蓓
Owner NANTONG VOCATIONAL COLLEGE
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