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Preparation and application of C60C(COOH)2/ZnO/Fe3O4 ternary composites

A technology of composite materials and nanomaterials, which is applied in the field of simple preparation of C60C2/ZnO/Fe3O4 ternary composite materials, can solve the problems of narrow photoresponse range of ZnO, high recombination rate of photogenerated electrons and holes, and limited photocatalytic activity. Improve adsorption and photocatalytic activity, use less raw materials, and expand the application range

Pending Publication Date: 2018-08-03
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the application of ZnO becomes more and more widespread, its shortcomings as a photocatalyst are also exposed. For example, only ultraviolet light with a wavelength of less than 385nm can excite nano-ZnO to separate electrons and holes, so that the photoresponse range of ZnO narrower
In addition, after ZnO generates photogenerated electrons and holes, the recombination rate of photogenerated electrons and holes is high, which limits its photocatalytic activity.

Method used

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  • Preparation and application of C60C(COOH)2/ZnO/Fe3O4 ternary composites
  • Preparation and application of C60C(COOH)2/ZnO/Fe3O4 ternary composites
  • Preparation and application of C60C(COOH)2/ZnO/Fe3O4 ternary composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 0.2 g of fullerene powder, dissolve it in 200 mL of toluene, stir for 1 h to fully dissolve the fullerene, then add 47 μL of diethyl bromomalonate and 120 μL of catalyst 1,8-diazabicyclo Undec-7-ene, stirred and reacted for 1h, after the reaction was completed, the solution was evaporated to dryness, and then a mixed solvent of petroleum ether and toluene (volume ratio = 2.5:1) was used as a developing solvent for column separation to obtain the product Fuller Diethyl Allenate. Weigh 100mg of synthesized diethyl fullerene malonate, dissolve it in 50mL of toluene, add 40mg of NaH, stir and react at 60°C for 5h, and wash with toluene, sulfuric acid and secondary water successively after the reaction is completed, that is The target product C can be obtained 60 C(COOH) 2 .

[0026] Then weigh 1.622g FeCl 3 ·6H 2 O (5mmol), 0.597g FeCl 2 4H 2 O (3mmol), dissolved in 200mL of distilled water, ultrasonically dispersed, mechanically stirred at 45°C for 1.5h, then ...

Embodiment 2

[0029] ZnO / Fe 3 o 4 The preparation mode of nanometer material is with embodiment 1.50mg / L C 60 C(COOH) 2 The preparation of the toluene solution is also the same as in Example 1.

[0030] Weigh 50mg of ZnO / Fe 3 o 4 Compound was added to 15mL C 60 C(COOH) 2 in toluene solution, stirred at room temperature for 14h, and after drying, C 60 C(COOH) 2 Mass fraction of 1.50% C 60 C(COOH) 2 / ZnO / Fe 3 o 4 Ternary composite materials.

Embodiment 3

[0032] ZnO / Fe 3 o 4 The preparation mode of nanometer material is with embodiment 1.50mg / L C 60 C(COOH) 2 The preparation of the toluene solution is also the same as in Example 1.

[0033] Weigh 50mg of ZnO / Fe 3 o 4 Compound was added to 20mL C 60 C(COOH) 2 in toluene solution, stirred at room temperature for 12h, and after drying, C 60 C(COOH) 2 C with a mass fraction of 2.00% 60 C(COOH) 2 / ZnO / Fe 3 o 4 Ternary composite materials.

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Abstract

The invention discloses a preparation method and an application of C60C(COOH)2 / ZnO / Fe3O4 ternary composites and belongs to the technical field of synthesis of inorganic materials. The method comprisesspecific steps as follows: C60C(COOH)2 is synthesized from diethyl bromomalonate, 1,8-diazabicyclo[5.4.0]undec-7-ene and sodium hydride react with fullerene to synthesize C60C(COOH)2, different quantities of C60C(COOH)2 and a ZnO / Fe3O4 material which is prepared with a solvothermal method and having a core-shell structure are composited, and ternary semiconductor / carbon material heterojunction materials with different contents are prepared. The composites sufficiently have a synergistic effect of a non-toxic and low-cost wide bandgap semiconductor ZnO material with high conductivity and goodstability and a fullerene derivative with large specific surface area and capable of effectively inhibiting the composite ratio of photo-induced electrons and holes and have good catalytic activity for photocatalytic degradation of organic dye rhodamine B.

Description

technical field [0001] The invention belongs to the technical field of inorganic material synthesis, and in particular relates to a simple preparation of C 60 C(COOH) 2 / ZnO / Fe 3 o 4 The method of the ternary composite material and the application of the composite material to the degradation of Rhodamine B under visible light. Background technique [0002] In recent years, with the development of the economy, the depletion of energy materials and the increasing environmental pollution have led to the urgent need for new energy. Among them, the inexhaustible and inexhaustible renewable resource solar energy utilization has become the focus of scientific research workers. The photocatalytic technology developed in the field of solar energy utilization uses photocatalysts to effectively convert solar energy into chemical energy or electrical energy. However, the current insufficient use of visible light and the low quantum efficiency of catalysts seriously restrict the devel...

Claims

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Application Information

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IPC IPC(8): B01J31/28B01J23/80B01J37/34B01J37/10C02F1/30C02F1/48C02F101/34C02F101/36C02F101/38
CPCC02F1/30C02F1/488B01J23/80B01J31/28B01J37/10B01J37/343C02F2101/38C02F2101/34C02F2101/36C02F2305/10B01J35/39
Inventor 吴芳辉赵自豪魏先文李晓柠储心萍
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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