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Cellulose/UiO-66-NH2 porous material capable of degrading organophosphate biochemical toxic agent and preparation method thereof

A uio-66-nh2, organic phosphate ester technology, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, fiber processing, etc., can solve the problem of large specific surface area, high porosity and low density and other problems, to achieve the effect of good degradation effect and good mechanical properties

Active Publication Date: 2018-10-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the characteristics of low density, high porosity, and large specific surface area, and is suitable as a carrier to support various catalysts, thereby expanding the practical application of catalysts. Currently, there are few reports on the use of cellulose porous materials to support MOFs.

Method used

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  • Cellulose/UiO-66-NH2 porous material capable of degrading organophosphate biochemical toxic agent and preparation method thereof
  • Cellulose/UiO-66-NH2 porous material capable of degrading organophosphate biochemical toxic agent and preparation method thereof
  • Cellulose/UiO-66-NH2 porous material capable of degrading organophosphate biochemical toxic agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Add 0.06g of silane coupling agent KH560 to 5g of wood pulp nanocellulose suspension with a solid content of 1.2wt%, and magnetically stir for 4h at room temperature to obtain a hydrolyzate of cellulose nanowires and silane coupling agent KH560 Suspension; placed in liquid nitrogen for rapid cooling for 15 minutes, the cooling method is bottom-up directional cooling to obtain ice gel; then placed in a freeze dryer at -40°C, 25 Pa, freeze-dried for 35 hours, and placed at 110 after drying Bake in an oven at ℃ for 30 minutes to obtain a cellulose porous material, which is stored in a ziplock bag for later use.

[0040] (2) Add 125mg of zirconium chloride powder to a 50ml sample bottle, add 1ml of hydrochloric acid and 5ml of N,N-dimethylformamide dropwise, sonicate for 5min to make the dispersion uniform, and then dropwise add 134mg of 2-aminoterephthalic acid And 10ml of N,N-dimethylformamide, ultrasonically 5min to disperse completely and transfer to a hydrothermal syn...

Embodiment 2

[0046] (1) Add 0.1g of silane coupling agent KH560 to 3.9g of wood pulp nanocellulose suspension with solid content of 1.28wt%, and magnetically stir for 5h at room temperature to obtain hydrolyzate of cellulose nanowires and silane coupling agent KH560 Suspension; placed in liquid nitrogen to quickly cool for 15 minutes, the cooling method is directional cooling from bottom to top to obtain ice gel; then placed in -40 ℃, 25 Pa freeze dryer freeze-drying for 30 hours, placed after drying Bake in an oven at 110°C for 30 minutes to obtain a cellulose porous material, which is stored in a ziplock bag for later use.

[0047] (2) Add 80mg of zirconium chloride powder to a 50ml sample bottle, add 0.71ml of hydrochloric acid and 4ml of N,N-dimethylformamide dropwise, sonicate for 5min to make it evenly dispersed, and then dropwise add 65mg of 2-aminoterephthalene Formic acid and 8ml N,N-dimethylformamide, ultrasonically 5min to disperse completely, transfer to a hydrothermal synthesis r...

Embodiment 3

[0050] (1) Add 0.1g of silane coupling agent KH560 to 10g of wood pulp nanocellulose suspension with a solid content of 1.0wt%, and magnetically stir for 4h at room temperature to obtain a hydrolyzate of cellulose nanowires and silane coupling agent KH560 Suspension; placed in liquid nitrogen for rapid cooling for 20 minutes, the cooling method is bottom-up directional cooling to obtain ice gel; then placed in a freeze dryer at -40°C, 25Pa, freeze-dried for 30h, and placed at 110 after drying Bake in an oven at ℃ for 30 minutes to obtain a cellulose porous material, which is stored in a ziplock bag for later use.

[0051] (2) Add 125mg of zirconium chloride powder to a 50ml sample bottle, add 1ml of hydrochloric acid and 5ml of N,N-dimethylformamide dropwise, sonicate for 5min to make the dispersion uniform, and then dropwise add 134mg of 2-aminoterephthalic acid And 10ml of N,N-dimethylformamide, ultrasonic for 5min to disperse completely, transfer to a hydrothermal synthesis re...

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Abstract

The invention relates to a cellulose / UiO-66-NH2 porous material capable of degrading an organophosphate biochemical toxic agent and a preparation method thereof. Cellulose is used as a substrate and is blended with a silane coupling agent, and then compounding in situ is carried out in order to obtain UiO-66-NH2. The preparation method comprises the following steps: a silane coupling agent is added into a cellulose suspension, in order to obtain a cellulose-hydrolyzed silane coupling agent suspension; cooling in liquid nitrogen is carried out in order to obtain an ice gel; freeze-drying is carried out, and after baking, a cellulose porous material is obtained; the material is added into a mixed solution of zirconium ions, 2-aminoterephthalic acid, hydrochloric acid and N, N-dimethylformamide, and synthesis in situ is carried out; washing, solvent exchange, vacuum drying, and atmospheric drying are carried out in order to obtain the product. The cellulose / UiO-66-NH2 porous material canbe used for catalytically degrading the G series biochemical toxic agent in a N-ethylmorpholine buffer solution at room temperature, and the product has good mechanical properties, and potential application prospects in the fields of catalysis, environmental protection and the like.

Description

Technical field [0001] The invention belongs to the technical field of functional cellulose porous materials and their preparation, and particularly relates to a cellulose / UiO-66-NH that can degrade organophosphate biochemical poisons 2 Porous material and its preparation method. Background technique [0002] Organophosphate chemicals are widely used in the preparation of pesticides, pesticides, biochemical poisons and other biological activity regulators. A small amount of organophosphate chemicals can combine with the acetylcholinesterase in the human body to cause enzyme inactivation. Then affect the human nervous system and cause death. Among them, G series biochemical poisons are the most common type of organic phosphate ester biochemical poisons, including tabun (GA), sarin (GB), and Lenman (GD). Rahul Sharma et al. reported that about 200,000 people die every year due to misuse and ingestion of organophosphate chemicals. In addition, once such chemicals enter the farmlan...

Claims

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Application Information

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IPC IPC(8): C08J9/28D06M13/513C08G83/00C08L1/02C08L87/00B01J31/22A62D3/30A62D101/02A62D101/28D06M101/06
CPCA62D3/30A62D2101/02A62D2101/28B01J31/1691B01J31/22B01J2531/0213B01J2531/48C08G83/008C08J9/0061C08J9/28C08J2301/02C08J2487/00D06M13/513D06M2101/06
Inventor 隋晓锋沈晨康王碧佳毛志平徐红张琳萍钟毅
Owner DONGHUA UNIV
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