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Flexible metal organic framework/gelatin composite film as well as preparation method and application thereof

A technology of composite film and organic framework, which is applied in generators/motors, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of increased output power, low output power, and increased current, achieving high surface charge, Easy to prepare and the effect of increasing the evaporation rate of water

Active Publication Date: 2021-06-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the maximum voltage of water evaporation-induced power generation is usually achieved in pure water or water with low salt concentration, due to the large internal resistance of the device, the output current is mostly at the nanoampere level, which leads to very low output power
Excessive electrolyte salt concentration usually reduces the voltage, but the corresponding current will increase accordingly, which may lead to an increase in output power

Method used

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  • Flexible metal organic framework/gelatin composite film as well as preparation method and application thereof
  • Flexible metal organic framework/gelatin composite film as well as preparation method and application thereof
  • Flexible metal organic framework/gelatin composite film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Mix 320ml copper hydroxide nanowire solution with 6.4ml concentration of 0.1wt% B-type gelatin aqueous solution, after magnetic stirring for 10 minutes, vacuum filter on slow filter paper to obtain paper-based hydroxide nanowire / gelatin composite film, wherein the diameter of the slow filter paper used is 4.7 cm.

[0054] (2) Soak the copper hydroxide nanowire / gelatin composite film of paper base in the aqueous solution of 2.5wt% glutaraldehyde in 10ml concentration, remove the aqueous solution of glutaraldehyde after crosslinking 24 hours, add 15ml concentration and be 5mmol / L of 2,3,6,7,10,11-hexahydroxytriphenylenebenzene solution (the solvent is a mixture of water and dimethylformamide with a volume ratio of 10:1), react at 25°C for 2 hours Finally, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0055] Depend on figure 1 It can be seen that copper hydroxide nanowires and gelatin were deposited on the filter paper, forming a dense copper hydrox...

Embodiment 2

[0057] (1) Mix 320ml copper hydroxide nanowire solution with 6.4ml concentration of 0.1wt% B-type gelatin aqueous solution, after magnetic stirring for 10 minutes, vacuum filter on slow filter paper to obtain paper-based hydroxide nanowire / gelatin composite film, wherein the diameter of the slow filter paper used is 4.7 cm.

[0058] (2) Soak the copper hydroxide nanowire / gelatin composite film of paper base in the aqueous solution of 2.5wt% glutaraldehyde in 10ml concentration, remove the aqueous solution of glutaraldehyde after crosslinking 24 hours, add 15ml concentration and be 5mmol / L of 2,3,6,7,10,11-hexahydroxytriphenylenebenzene solution (the solvent is a mixture of water and dimethylformamide with a volume ratio of 10:1), react at 55°C for 2 hours Finally, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0059] The paper-based Cu-CAT-1 / gelatin composite film is a nanorod array morphology with a unique hierarchical porous structure, excellent solar light...

Embodiment 3

[0061] (1) Mix 320ml copper hydroxide nanowire solution with 6.4ml concentration of 0.1wt% B-type gelatin aqueous solution, after magnetic stirring for 10 minutes, vacuum filter on slow filter paper to obtain paper-based hydroxide nanowire / gelatin composite film, wherein the diameter of the slow filter paper used is 4.7 cm.

[0062] (2) Soak the copper hydroxide nanowire / gelatin composite film of paper base in the aqueous solution of 2.5wt% glutaraldehyde in 10ml concentration, remove the aqueous solution of glutaraldehyde after crosslinking 24 hours, add 15ml concentration and be 5mmol / L of 2,3,6,7,10,11-hexahydroxytriphenylenebenzene solution (the solvent is a mixture of water and dimethylformamide with a volume ratio of 10:1), react at 85°C for 2 hours Finally, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0063] The paper-based Cu-CAT-1 / gelatin composite film is a nanorod array morphology with a unique hierarchical porous structure, excellent solar light...

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Abstract

The invention discloses a flexible metal organic framework / gelatin composite film as well as a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing a hydroxide nanowire solution and a gelatin aqueous solution, uniformly stirring, and performing suction filtration on a flexible porous substrate to obtain a hydroxide nanowire / gelatin composite film; and (2) soaking the hydroxide nanowire / gelatin composite film in a glutaraldehyde aqueous solution for a cross-linking reaction, and then soaking the hydroxide nanowire / gelatin composite film in an organic ligand solution for a reaction after the cross-linking reaction to obtain the flexible metal organic framework / gelatin composite film. The invention has the characteristics of simple preparation, large-scale production, wide application prospect and the like, and provides a new way for designing a solar interface seawater desalination device for water-electricity co-production.

Description

technical field [0001] The invention relates to the technical field of solar seawater desalination and water evaporation induced power generation, in particular to a flexible metal organic framework / gelatin composite film and its preparation method and application. Background technique [0002] The growing demand for fresh water resources, coupled with concerns about the energy crisis, has stimulated strong interest in developing green and energy-efficient seawater desalination technologies and novel energy conversion systems. Solar interface seawater desalination technology is a sustainable and eco-friendly technology for producing high-quality fresh water without consuming fossil fuels and without secondary pollution. The emergence of nano-photothermal materials and the design of unique multi-level porous structures have made great progress in the desalination technology of solar interface seawater. In addition, water is continuously transported due to capillary forces an...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08J3/24C08L89/00C08L87/00C02F1/08C02F1/14H02N3/00
CPCC08J5/18C08J3/24C02F1/14C02F1/08H02N3/00C02F2103/08C08J2389/00C08J2487/00C08K2003/2248C08K2201/011Y02A20/212Y02A20/124Y02A20/142
Inventor 彭新生马旭
Owner ZHEJIANG UNIV
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