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a porous nh 2 - Preparation method of uio-66-d/indium zinc sulfide composite visible light catalyst

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, mild and controllable preparation conditions, etc.

Active Publication Date: 2022-03-25
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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  • a porous nh <sub>2</sub> - Preparation method of uio-66-d/indium zinc sulfide composite visible light catalyst
  • a porous nh <sub>2</sub> - Preparation method of uio-66-d/indium zinc sulfide composite visible light catalyst
  • a porous nh <sub>2</sub> - Preparation method of uio-66-d/indium zinc sulfide composite visible light catalyst

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 a vinyl fluoride 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]...

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 a vinyl fluoride 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]...

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 a vinyl fluoride 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]...

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Abstract

The invention relates to the preparation of NH with a porous structure by adopting a silver-catalyzed decarboxylation method 2 ‑UiO‑66‑d, followed by in situ hydrothermal method to obtain NH 2 ‑UiO‑66‑d / Indium Zinc Sulfide Composite Visible Light Catalyst. The beneficial effects of the present invention are: the preparation method is low in cost, high in repeatability, and the preparation conditions are mild and controllable, and the prepared NH 2 ‑UiO‑66‑d / indium zinc sulfide composite visible photocatalyst is a green photocatalyst, and the porous structure of NH 2 The combination of ‑UiO‑66‑d with indium zinc sulfide can effectively improve the activity of photocatalytic hydrogen production, and has certain application prospects 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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Patent Type & Authority Patents(China)
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