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Preparation method of porous NH2-UiO-66-d/indium zinc sulfide composite visible-light-induced photocatalyst

A technology of nh2-uio-66-d and nh2-uio-66, which is applied in the direction of organic compound/hydride/coordination complex catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve hydrothermal stability In order to achieve the effect of improving photocatalytic hydrogen production activity, high repeatability and low cost

Active Publication Date: 2020-05-08
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most MOFs have problems such as low hydrothermal stability, which limits their application in the field of photocatalysis, while UiO-66 has greatly enhanced hydrothermal stability due to its high coordination number.

Method used

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  • Preparation method of porous NH2-UiO-66-d/indium zinc sulfide composite visible-light-induced photocatalyst
  • Preparation method of porous NH2-UiO-66-d/indium zinc sulfide composite visible-light-induced photocatalyst
  • Preparation method of porous NH2-UiO-66-d/indium zinc sulfide composite visible-light-induced photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) NH 2 -Preparation of UiO-66: Dissolve 0.2332 g of zirconium chloride and 0.1812 g of 2-aminoterephthalic acid in 50 mL of N,N-dimethylformamide, stir and dissolve the solution, and transfer the solution to polytetrafluoroethylene In vinyl lining, solvothermal reaction at 90°C for 24 h, after the hydrothermal kettle was cooled to room temperature, the product was centrifuged and washed with N,N-dimethylformamide and anhydrous methanol to obtain NH 2 -UiO-66.

[0023] (2) NH 2 - Preparation of UiO-66-d: Dissolve 50 mg of silver nitrate and 50 mg of potassium persulfate in 20 mL of acetonitrile. After ultrasonic dissolution, the prepared 150 mg of NH 2 - Add UiO-66 to the above solution, put it in an oil bath at 150°C for 40 minutes, then quickly put the reactor into the ice-water mixture, after a period of time, use deionized water and ethanol as detergents to wash the product centrifugally, get porous NH 2 -UiO-66, which is NH 2 -UiO-66-d.

[0024] (3) NH 2 - ...

Embodiment 2

[0026] (1) NH 2 -Preparation of UiO-66: Dissolve 0.2332 g of zirconium chloride and 0.1812 g of 2-aminoterephthalic acid in 50 mL of N,N-dimethylformamide, stir and dissolve the solution, and transfer the solution to polytetrafluoroethylene In vinyl lining, solvothermal reaction at 90°C for 24 h, after the hydrothermal kettle was cooled to room temperature, the product was centrifuged and washed with N,N-dimethylformamide and anhydrous methanol to obtain NH 2 -UiO-66.

[0027] (2) NH 2 - Preparation of UiO-66-d: Dissolve 50 mg of silver nitrate and 50 mg of potassium persulfate in 20 mL of acetonitrile. After ultrasonic dissolution, the prepared 150 mg of NH 2 - Add UiO-66 to the above solution, put it in an oil bath at 150°C for 40 minutes, then quickly put the reactor into the ice-water mixture, after a period of time, use deionized water and ethanol as detergents to wash the product centrifugally, get porous NH 2 -UiO-66, which is NH 2 -UiO-66-d.

[0028] (3) NH 2 - ...

Embodiment 3

[0030] (1) NH 2 -Preparation of UiO-66: Dissolve 0.2332 g of zirconium chloride and 0.1812 g of 2-aminoterephthalic acid in 50 mL of N,N-dimethylformamide, stir and dissolve the solution, and transfer the solution to polytetrafluoroethylene In vinyl lining, solvothermal reaction at 90°C for 24 h, after the hydrothermal kettle was cooled to room temperature, the product was centrifuged and washed with N,N-dimethylformamide and anhydrous methanol to obtain NH 2 -UiO-66.

[0031] (2) NH 2 - Preparation of UiO-66-d: Dissolve 50 mg of silver nitrate and 50 mg of potassium persulfate in 20 mL of acetonitrile. After ultrasonic dissolution, the prepared 150 mg of NH 2 - Add UiO-66 to the above solution, put it in an oil bath at 150°C for 40 minutes, then quickly put the reactor into the ice-water mixture, after a period of time, use deionized water and ethanol as detergents to wash the product centrifugally, get porous NH 2 -UiO-66, which is NH 2 -UiO-66-d.

[0032] (3) NH 2 - ...

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Abstract

The invention relates to a preparation method of a porous NH2-UiO-66-d / indium zinc sulfide composite visible-light-induced photocatalyst. The preparation method comprises the following steps: preparing NH2-UiO-66-d with a porous structure by adopting a silver-catalyzed decarboxylation method, and then preparing the NH2-UiO-66-d / indium zinc sulfide composite visible-light-induced photocatalyst by utilizing an in-situ hydrothermal method. The beneficial effects of the invention are that the preparation method is low in cost and high in repeatability; preparation conditions are mild and controllable; the prepared NH2-UiO-66-d / indium zinc sulfide composite visible-light-induced photocatalyst is a green and environment-friendly photocatalyst, photocatalytic hydrogen production activity can be effectively improved by compounding NH2-UiO-66-d having a porous structure with indium zinc sulfide, and the photocatalyst has a certain application prospect in the field of photocatalytic hydrolysis hydrogen production.

Description

technical field [0001] The present invention relates to a kind of porous NH 2 - A preparation method of UiO-66-d / indium zinc sulfide composite visible light catalyst, which belongs to the technical field of photocatalytic nanomaterials. Background technique [0002] With the continuous development of modern industry, energy and environmental problems are becoming more and more serious, and hydrogen energy is considered to be the most ideal green energy in the new century because of its advantages such as cleanness, high efficiency, and easy storage and transportation. Photocatalytic technology is a new technology developed rapidly in recent years that can use solar energy for environmental purification and energy conversion. For more than forty years, with the continuous in-depth exploration of photocatalytic technology, various photocatalytic materials have been tested and analyzed. Among all the reported photocatalysts, InZnS is cheap and readily available, and has a sui...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J37/08B01J37/10B01J37/34
CPCB01J31/1691B01J37/08B01J37/10B01J37/343B01J2531/48B01J35/39
Inventor 李忠玉赵彩霞姜海伦王晓红徐松
Owner CHANGZHOU UNIV
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