Flexible metal organic framework/gelatin composite film and its preparation method and application

A technology of organic framework and composite film, which is applied in generators/motors, chemical instruments and methods, water/sewage treatment, etc. It 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: 2022-05-27
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 and its preparation method and application
  • Flexible metal organic framework/gelatin composite film and its preparation method and application
  • Flexible metal organic framework/gelatin composite film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) 320ml of copper hydroxide nanowire solution was mixed with 6.4ml of B-type gelatin aqueous solution with a concentration of 0.1wt%, and after magnetic stirring for 10 minutes, vacuum-filtered on slow filter paper to obtain paper-based hydroxide nanowires / Gelatin composite film, in which the slow filter paper used has a diameter of 4.7 cm.

[0054] (2) The paper-based copper hydroxide nanowire / gelatin composite film was soaked in 10 ml of an aqueous solution of glutaraldehyde with a concentration of 2.5 wt %, and the aqueous solution of glutaraldehyde was removed after cross-linking for 24 hours, and 15 ml of glutaraldehyde with a concentration of 5 mmol was added. / 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 After that, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0055] Depend on figure 1 It can be seen that the copper ...

Embodiment 2

[0057] (1) 320ml copper hydroxide nanowire solution was mixed with 6.4ml B-type gelatin aqueous solution with a concentration of 0.1wt%, and after magnetic stirring for 10 minutes, vacuum filtration on slow filter paper to obtain paper-based hydroxide nanowires / Gelatin composite film, in which the slow filter paper used has a diameter of 4.7 cm.

[0058] (2) The paper-based copper hydroxide nanowire / gelatin composite film was immersed in 10 ml of an aqueous solution of glutaraldehyde with a concentration of 2.5 wt %, the aqueous solution of glutaraldehyde was removed after cross-linking for 24 hours, and 15 ml of glutaraldehyde with a concentration of 5 mmol was added. / L 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 After that, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0059] The paper-based Cu-CAT-1 / gelatin composite film has a nanoro...

Embodiment 3

[0061] (1) 320ml copper hydroxide nanowire solution was mixed with 6.4ml B-type gelatin aqueous solution with a concentration of 0.1wt%, and after magnetic stirring for 10 minutes, vacuum filtration on slow filter paper to obtain paper-based hydroxide nanowires / Gelatin composite film, in which the slow filter paper used has a diameter of 4.7 cm.

[0062] (2) The paper-based copper hydroxide nanowire / gelatin composite film was soaked in 10 ml of an aqueous solution of glutaraldehyde with a concentration of 2.5 wt %, and the aqueous solution of glutaraldehyde was removed after cross-linking for 24 hours, and 15 ml of glutaraldehyde with a concentration of 5 mmol was added. / 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 After that, a paper-based Cu-CAT-1 / gelatin composite film was obtained.

[0063] The paper-based Cu-CAT-1 / gelatin composite film has a n...

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Abstract

The invention discloses a flexible metal organic framework / gelatin composite film and its preparation method and application, wherein the preparation method comprises the following steps: (1) mixing the hydroxide nanowire solution with the gelatin aqueous solution, stirring evenly, and suction filtering to On a flexible porous substrate, the hydroxide nanowire / gelatin composite film is obtained; (2) The hydroxide nanowire / gelatin composite film is soaked in glutaraldehyde aqueous solution for cross-linking reaction, and then soaked in the organic compound after the cross-linking reaction The reaction was carried out in a bulk solution to obtain a flexible metal organic framework / gelatin composite film. The invention has the characteristics of simple preparation, large-scale production, broad application prospects, etc., and provides a new approach for designing solar interface seawater desalination devices for water-electricity cogeneration.

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 a preparation method and application thereof. Background technique [0002] The growing demand for freshwater resources, coupled with concerns about the energy crisis, has stimulated strong interest in developing green and energy-efficient desalination technologies and new energy conversion systems. The solar interface desalination technology does not consume fossil fuels and has no secondary pollution, which is a sustainable and eco-friendly technology for producing high-quality fresh water. The emergence of nanophotothermal materials and the design of unique hierarchical pore structures have made great progress in solar interface desalination technology. Furthermore, water is continuously transported due to capillary forces and evaporation. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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