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A kind of preparation method of hybrid organosilicon film

A technology of organosilicon and hybridization, which is applied in the field of preparation of hybrid organosilicon membranes, can solve the problems of complex preparation process, high cost, harsh reaction conditions, etc., and achieve the effect of simple operating conditions, wide applicability and easy availability of raw materials

Inactive Publication Date: 2017-08-11
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this method is complicated, the reaction conditions are harsh, and the cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S100: preparing a zeolite / graphene oxide inorganic hybrid layer. Specifically include the following steps:

[0032] S111: Prepare the organic solvent dispersion of zeolite; add 20.1 mg of all-silica zeolite into 53 grams of tetrahydrofuran to disperse uniformly under stirring conditions, and then place it under 400W ultrasonic conditions for ultrasonic dispersion treatment for 10 minutes to obtain the organic solvent dispersion of the zeolite liquid;

[0033] S112: Prepare an aqueous dispersion of graphene oxide; add 5 mg of graphite oxide to 10 ml of water, and then place it under 400W ultrasonic conditions for ultrasonic dispersion for 60 minutes to obtain the aqueous dispersion of graphene oxide; the prepared oxidized The concentration of the aqueous dispersion of graphene is 0.5mg / ml;

[0034] S113: Mix all the organic solvent dispersions of zeolite obtained in step S111 and 1 ml of the aqueous dispersion of graphene oxide obtained in step S112 to obtain a zeolite...

Embodiment 2

[0042] S100: preparing a zeolite / graphene oxide inorganic hybrid layer. Specifically include the following steps:

[0043] S111: Prepare the organic solvent dispersion of zeolite; add 20 mg of all-silica zeolite to 26.5 grams of tetrahydrofuran to disperse evenly under stirring conditions, and then place it under 300W ultrasonic conditions for ultrasonic dispersion treatment for 5 minutes to obtain the organic solvent dispersion of the zeolite liquid;

[0044] S112: Prepare an aqueous dispersion of graphene oxide; add 10 mg of graphite oxide to 10 ml of water, and then place it under ultrasonic conditions of 300 W for 50 minutes to obtain the aqueous dispersion of graphene oxide; The concentration of the aqueous dispersion of graphene is 1mg / ml;

[0045] S113: Mix all the organic solvent dispersions of zeolite obtained in step S111 and 4 ml of the aqueous dispersion of graphene oxide obtained in step S112 to obtain a zeolite / graphene oxide hybrid dispersion.

[0046] S114: ...

Embodiment 3

[0052] S100: preparing a zeolite / graphene oxide inorganic hybrid layer. Specifically include the following steps:

[0053] S111: Prepare the organic solvent dispersion of zeolite; add 48 mg of all-silica zeolite into 60 grams of tetrahydrofuran to disperse evenly under the condition of stirring, and then place it under 400W ultrasonic conditions for ultrasonic dispersion treatment for 10 minutes to obtain the organic solvent dispersion of the zeolite liquid;

[0054] S112: prepare an aqueous dispersion of graphene oxide; add 10 mg of graphite oxide to 10 ml of water, and then place it under ultrasonic conditions of 300 W for 60 minutes to obtain the aqueous dispersion of graphene oxide; The concentration of the aqueous dispersion of graphene is 1mg / ml;

[0055] S113: Mix all the organic solvent dispersions of zeolite obtained in step S111 with 8 ml of the aqueous dispersion of graphene oxide obtained in step S112 to obtain a zeolite / graphene oxide hybrid dispersion.

[0056...

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PUM

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Abstract

The invention provides a preparation method of a hybrid organic silicon film. The method includes the steps of preparing a zeolite / graphene oxide inorganic hybrid layer; conducting primary suction filtering on zeolite / graphene oxide hybrid dispersion liquid under the negative pressure; conducting organic silicon filling; conducting secondary suction filtering on an organic silicon filling solution, wherein a suction filtering medium adopted in secondary suction filtering is a suction filtering medium of the zeolite / graphene oxide inorganic hybrid layer obtained in the previous step; forming the film; standing after secondary suction filtering, drying the suction filtering medium obtained after secondary suction filtering, and removing a supporting medium after drying is completed to obtain the hybrid organic silicon film. The method is simple, controllable, simple in operation conditions and wide in application range, and raw materials are easy to obtain; the proportion of zeolite to graphene oxide to organic silicon can be freely regulated during preparation without considering the problems of the sedimentation, dispersion and film forming property of traditional film casting.

Description

technical field [0001] The invention relates to the technical field of pervaporation membrane separation, in particular to a preparation method of a hybrid organic silicon membrane. Background technique [0002] Pervaporation (PV) is a membrane separation process for the separation of liquid mixtures. It uses the osmotic pressure difference between the components as the driving force, and relies on the difference in the dissolution and diffusion rates of the components in the membrane to achieve the separation purpose. Compared with traditional distillation, adsorption, extraction and other separation processes, it has the advantages of high separation efficiency, simple equipment, easy operation, no pollution in the process, and low energy consumption. PV shows its unique advantages in the separation of near-boiling point mixtures, azeotropes and mixed systems with high temperature sensitivity. and other fields have broad application prospects. It has been industrialized...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/06B01D69/12B01D67/00B01D61/36
CPCB01D61/362B01D67/0079B01D69/12B01D71/06
Inventor 叶宏张襄张忠国宋博宇于健马晓欢左思远
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY