Preparation of COF-316/CAT-1 composite material and photocatalytic carbon dioxide reduction

A technology of COF-316 and CAT-1, which is applied in the direction of carbon monoxide, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problem of low efficiency of photocatalytic carbon dioxide reduction

Active Publication Date: 2021-08-20
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the photocatalytic carbon dioxide reduction efficiency of traditional core-shell composite materials is not high, and to provide a preparation method of COF-316 / CAT-1 composite material and the application of photocatalytic carbon dioxide reduction

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  • Preparation of COF-316/CAT-1 composite material and photocatalytic carbon dioxide reduction
  • Preparation of COF-316/CAT-1 composite material and photocatalytic carbon dioxide reduction
  • Preparation of COF-316/CAT-1 composite material and photocatalytic carbon dioxide reduction

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Embodiment 1

[0019] Example 1: The preparation of a COF-316 / CAT-1 composite material in this embodiment is completed according to the following steps:

[0020] 1. Preparation of COF-316: Add 15mg of 2,3,6,7,10,11-hexahydroxytriphenylenebenzene and 13.8mg of tetrafluoroterephthalonitrile into a Pyrex tube, and pour into the tube Add 1 mL of 1,4-dioxane and 39 μL of triethylamine, sonicate for 0.5 h, and perform four liquid nitrogen freezing-degassing operations, and place the degassed Pyrex tube in an air atmosphere to thaw naturally, and thaw Then put it in an oven at 150°C for reaction, turn off the oven after 84 hours, let it cool naturally, filter the product in the Pyrex tube, and wash with N,N-dimethylformamide, methanol and deionized water until the filtrate becomes colorless , dry naturally in the air for 30h to obtain COF-316 material;

[0021] 2. Preparation of COF-316-Ni: Add 10mg of COF-316 and 50mg of nickel acetate into a 50mL beaker in sequence, add 30mL of methanol for ultr...

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Abstract

The invention relates to preparation of a COF-316 / CAT-1 composite material and photocatalytic carbon dioxide reduction. The invention provides a novel COF-316 / CAT-1 composite material to solve the problems of low electron transfer efficiency and poor photocatalytic carbon dioxide reduction efficiency caused by small contact area and no bond connection of two heterogeneous materials in a traditional core-shell composite material. The preparation method comprises the steps of adding COF-316 into a nickel acetate aqueous solution, chelating metal ions by a stirring method, filtering, washing and drying, adding into an aqueous solution of nickel acetate and 2, 3, 6, 7, 10, 11-hexahydroxy triphenylbenzene, and coordinating under a heating condition to form the COF-316 / CAT-1 composite material. The preparation process is simple, and the material compounding efficiency is high. Compared with a traditional core-shell composite material, the composite material provided by the invention has more excellent photocatalytic carbon dioxide reduction performance, and the carbon dioxide reduction rate of the composite material can reach 261.93 [mu] mol.g <-1 >. h <-1 > and is 1.85 times that of the traditional core-shell composite material.

Description

technical field [0001] The invention relates to the preparation of a COF-316 / CAT-1 composite material and photocatalytic carbon dioxide reduction. Background technique [0002] With the rapid advancement of industrial processes, human demand for fossil energy is increasing day by day. However, the excessive use of fossil fuels has caused the concentration of carbon dioxide in the atmosphere to increase year by year and has caused serious environmental problems. To solve this problem, the fixation and conversion of carbon dioxide has become a research hotspot in recent years. Existing carbon dioxide conversion technologies can generally be divided into biocatalysis, thermal catalysis, electrocatalysis, and photocatalysis. Due to the advantages of mild reaction conditions and no secondary energy assistance, the photocatalytic technology of using solar energy to convert carbon dioxide into fuel or other valuable chemicals has become an ideal method for carbon dioxide fixation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C01B32/40
CPCB01J35/004B01J31/2226B01J31/1691B01J35/0073C01B32/40B01J2231/62B01J2531/847
Inventor 魏金枝刘欣然张凤鸣
Owner HARBIN UNIV OF SCI & TECH
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