Preparation method of cellosilk-graphene-platinum ternary composite catalyst

A ternary composite and graphene technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as easy loss, achieve high affinity, ensure uniformity, and be easy to solve churn effect

Active Publication Date: 2022-05-13
云南海清环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a suitable method is adopted to fix metal platinum on graphene, the problem of easy loss during its use can be solved

Method used

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  • Preparation method of cellosilk-graphene-platinum ternary composite catalyst
  • Preparation method of cellosilk-graphene-platinum ternary composite catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method utilizing coconut water to realize graphene oxide reduction and platinum immobilization, comprising the following steps:

[0028] (1) Take 100mL of coconut water, add Gluconacetobacter, culture at 30°C for 5 days, and fiber filaments will be produced in the coconut water.

[0029] (2) Prepare 20mL of a mixed solution containing 1wt% graphene oxide and 0.2wt% chloroplatinic acid.

[0030] (3) Drop the mixed solution obtained in step (2) into the product of step 1, and continue culturing at 30° C. for 5 days, so that the graphene oxide and chloroplatinic acid are mixed into the fiber filaments.

[0031] (4) Heating the mixture obtained in step (2) to 90° C. and reacting for 24 hours to reduce the graphene oxide to graphene, and at the same time, chloroplatinic acid is reduced to metal platinum and immobilized on the graphene.

[0032] (5) cleaning step (4) gained solid product, obtains fiber silk-graphene-platinum ternary composite catalyst; Gained ternary compo...

Embodiment 2

[0054] The fiber filament-graphene-platinum ternary composite catalyst obtained in embodiment 1 is used to carry out the catalytic oxidation degradation test for organic pollutants, specifically as follows:

[0055] Get 1.00mg by the obtained fiber silk-graphene-platinum ternary composite catalyst of embodiment 1, apply it to the catalytic oxidative degradation of organic pollutant, experiment object is active red 2 (CAS number: 17804-49-8) dye solution . The specific experimental conditions are: the initial concentration of the dye solution is 1×10 -4 mol / L, dye solution volume 10mL, adjust the pH value of dye solution=3, H 2 o 2 Oxidant concentration 5×10 -3 mol / L, the reaction temperature is 50°C. After 35 minutes of reaction, the concentration of the dye solution decreased by 98.81%. For specific experimental results, see figure 1 .

[0056] In order to investigate the reusability of the obtained fiber silk-graphene-platinum ternary composite catalyst, the fiber silk...

Embodiment 3

[0089] A method utilizing coconut water to realize graphene oxide reduction and platinum immobilization, comprising the following steps:

[0090] (1) Take 100mL of coconut water, add Gluconacetobacter, culture at 30°C for 5 days, and fiber filaments will be produced in the coconut water.

[0091] (2) Prepare 20mL of a mixed solution containing 1wt% graphene oxide and 2wt% chloroplatinic acid.

[0092] (3) Drop the mixed solution obtained in step (2) into the product of step 1, and continue culturing at 30° C. for 5 days, so that the graphene oxide and chloroplatinic acid are mixed into the fiber filaments.

[0093] (4) Heating the mixture obtained in step (2) to 90° C. and reacting for 24 hours to reduce the graphene oxide to graphene, and at the same time, the chloroplatinic acid is reduced to metal platinum and immobilized on the graphene.

[0094] (5) cleaning step (4) gained solid product, obtains fiber silk-graphene-platinum ternary composite catalyst; Gained ternary com...

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Abstract

The invention discloses a preparation method of a cellosilk-graphene-platinum ternary composite catalyst. The method comprises the following steps: reducing graphene oxide into graphene by using coconut juice, and adhering metal platinum to the graphene at the same time; the metal platinum attached graphene is obtained by heating and reacting a mixed solution of graphene oxide and chloroplatinic acid in coconut juice containing acetobacter; the specific implementation method comprises the following steps: 1, adding acetobacter to coconut juice, and culturing to generate cellosilk; 2, dropwise adding a mixed solution of graphene oxide and chloroplatinic acid into the coconut juice, and continuously culturing; and 3, heating the mixture to form graphene and immobilize the metal platinum on the graphene, and cleaning to obtain the ternary composite catalyst. Graphene oxide reduction and platinum immobilization are achieved through coconut juice, toxic, harmful and expensive chemical reducing agents are avoided, organic solvents, stabilizers and surfactants do not need to be used, and the method has the advantages of being simple, mild in reaction condition, green in process, low in cost and the like.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation and organic wastewater treatment; in particular, it relates to a method for realizing the preparation of fiber silk-graphene-platinum ternary composite catalyst by utilizing coconut milk to realize graphene oxide reduction and platinum immobilization, and the obtained ternary composite catalyst can be used Catalytic oxidation degradation treatment of industrial wastewater such as dyes and phenols. Background technique [0002] Graphene is a new type of nano-carbon material. Due to its unique mechanical, electrical, thermal and optical properties, it has a wide range of potential applications in many fields such as nanocomposites, biosensors, and energy storage and conversion. However, it is difficult to directly prepare graphene, and how to obtain graphene through a simple and economical method is a long-term challenge in the industry. At present, the common alternative method is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J21/18B01J35/06B01J37/36B01J37/16B01J37/06C02F1/72C02F101/30C02F101/34
CPCB01J23/42B01J21/18B01J35/06B01J37/36B01J37/16B01J37/06B01J35/0033C02F1/722C02F1/725C02F2101/308C02F2101/345Y02E60/50
Inventor 陈世良黄嘉驰
Owner 云南海清环保科技有限公司
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