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A preparation method of photocatalytic thiourea modified two-dimensional MXene material

A photocatalytic thiourea and catalytic thiourea technology, applied in the field of environmental sewage treatment, can solve the problems of single multi-function, adsorption of pollutants, etc., and achieve the effects of wide application range, high adsorption efficiency and good magnetic responsiveness

Active Publication Date: 2021-08-10
上海天宿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that most of the current adsorption materials are only limited to adsorption of pollutants, the present invention proposes a preparation method of a two-dimensional MXene material modified by magnetic, photocatalytic degradation, and double adsorption multifunctional thiourea, which has a wide range of applications, Low production cost and environmental protection

Method used

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  • A preparation method of photocatalytic thiourea modified two-dimensional MXene material
  • A preparation method of photocatalytic thiourea modified two-dimensional MXene material
  • A preparation method of photocatalytic thiourea modified two-dimensional MXene material

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Experimental program
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Effect test

Embodiment 1

[0047] A preparation method of photocatalytic thiourea modified two-dimensional MXene material.

[0048] (1) Pretreatment of MAX phase materials

[0049] 1g Ti 3 AlC 2 The phase material was ground and sieved (800 mesh); 95% 100mL ethanol solution was sonicated for 60min; acid treatment: Ti 3 AlC 2 The phase material was soaked in 0.8mol / L 100mL hydrochloric acid solution for 4h. Alkali treatment: acid treated Ti 3 AlC 2 The phase material was soaked in 1mol / L 100mL NaOH solution for 2.0h.

[0050] (2) Preparation of MXene materials

[0051] NH 4 F etching method: at 60°C, 1g of the material treated in the above step (1) 3 AlC 2 Slowly add 2.0 g of solute NH 4 In a solution of F and 4.0 g of solute HCl, stirred and reacted for 12 h, washed with double distilled water; vacuum filtered and dried to obtain MXene material.

[0052] (3) TiO 2Preparation of @MXene composites

[0053] Measure 2.5g of tetrabutyl titanate and 1.5mL of 40% hydrofluoric acid solution into 1...

Embodiment 2

[0057] A preparation method of photocatalytic thiourea modified two-dimensional MXene material.

[0058] (1) Pretreatment of MAX phase materials

[0059] 1g Ti 3 AlC 2 Phase precursor material was ground and sieved (900 mesh); 99% 100mL ethanol solution was ultrasonicated for 60min; acid treatment: Ti 3 AlC 2 The phase precursor material was soaked in 5.5mol / L 100mL hydrochloric acid solution for 3h. Alkali treatment: acid treated Ti 3 AlC 2 The phase precursor material was soaked in 1.5mol / L 100mL NaOH solution for 2h.

[0060] (2) Preparation of MXene materials

[0061] NH 4 F etching method: at 55°C, 1g of the precursor material treated in the above step (1) 3 AlC 2 Slowly add 2.2g NH 4 F and 5.5mol / L 100mL HCl solution, stirred and reacted for 12h, washed with double distilled water; vacuum filtered and dried to obtain MXene material.

[0062] (3) TiO 2 Preparation of @MXene composites

[0063] Measure 2.0g of tetrabutyl titanate and 1mL of 40% hydrofluoric a...

Embodiment 3

[0067] A preparation method of photocatalytic thiourea modified two-dimensional MXene material.

[0068] (1) Pretreatment of MAX phase materials

[0069] 1g Ti 2 The AlC phase material was ground and sieved (900 mesh); 99% 100mL ethanol solution was ultrasonicated for 60min; acid treatment: Ti 2 The AlC phase material was soaked in 5.5mol / L 100mL hydrochloric acid solution for 3h. Alkali treatment: acid treated Ti 2 The AlC phase material was soaked in 1.5mol / L 100mL NaOH solution for 2h.

[0070] (2) Preparation of MXene materials

[0071] NH 4 F etching method: at 55°C, 1g of the material treated in the above step (1) 2 Slowly add 2.2gNH to AlC 4 F and 5.5mol / L 100mL HCl solution, stirred and reacted for 12h, washed with double distilled water; vacuum filtered and dried to obtain MXene material.

[0072] (3) TiO 2 Preparation of @MXene composites

[0073] Measure 2.0g of tetrabutyl titanate and 1mL of 40% hydrofluoric acid solution and add them to 1g of MXene powde...

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Abstract

The invention relates to a preparation method of photocatalytic thiourea modified two-dimensional MXene material, including the synthesis of MXene material, and then preparing TiO 2 @MXene composite material, and finally the thiourea-modified two-dimensional MXene material, that is, the magnetic multifunctional material, was obtained through terminal modification. The preparation method proposed by the invention has the advantages of simple operation, low cost, wide application range and practical application value. The invention also proposes a multifunctional adsorption material for synchronously adsorbing phenol and lead ions in waste water and the application of photocatalytic phenol reduction.

Description

technical field [0001] The invention belongs to the technical field of environmental sewage treatment, and in particular relates to a preparation method of a photocatalyzed thiourea-modified two-dimensional MXene material. Background technique [0002] Environmental pollution of water bodies directly threatens the growth of animals and plants and the health of human beings. It has attracted widespread attention, and sewage treatment has received unprecedented attention. Organic pollutants and heavy metal ions are the main harmful components in sewage, and the combined pollution of the two is the difficulty of environmental pollution control. At present, the classic methods for dealing with such pollutants include ion exchange, membrane separation, redox, adsorption, etc. Most of the above methods can only deal with a single pollutant, and the identification efficiency and range of multiple pollutants are limited. Therefore, the research and development of a degradable, recy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/02B01J27/22B01J20/22B01J20/28B01J20/30C02F1/28C02F1/30C02F101/20C02F101/34
CPCB01J20/06B01J20/22B01J20/28009B01J20/28014B01J27/22B01J31/0274B01J31/0275B01J35/0033B01J35/004C02F1/281C02F1/285C02F1/288C02F1/30C02F2101/20C02F2101/345
Inventor 何刚刚
Owner 上海天宿新材料有限公司