Preparation method and application of ZIFs materials with cage-like confined structure and hydrogen bonding sites
CN118126338BActive Publication Date: 2025-10-03TAIYUAN UNIVERSITY OF TECHNOLOGY
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202410027355.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2044-01-09
Smart Images
Figure CN118126338B_ABST
Abstract
The present invention discloses the preparation of a zeolitic imidazolate framework material (ZIFs) with a cage-like confined structure and hydrogen bonding sites, and its application in the adsorption and separation of 1,3-propylene glycol and 2,3-butanediol in aqueous solution. First, SOD-mnIm, SOD-clnIm, SOD-brnIm and SOD-brcIm were synthesized by a solvent method; secondly, static adsorption and dynamic column adsorption experiments were conducted to study the adsorption and separation performance of this type of ZIFs material for 1,3-propylene glycol / 2,3-butanediol in aqueous solution. Since this type of ZIFs material has a relatively close distance to the hydroxyl group of 1,3-propylene glycol (8.1 Å), the adsorption and separation performance of the ZIFs material for 1,3-propylene glycol and 2,3-butanediol in aqueous solution is relatively close. sod The cage-like confined structure (8.1~8.8 Å) and hydrogen bonding sites (-NO2 or -CHO) enable it to selectively adsorb 1,3-propylene glycol, thereby achieving the adsorption separation of low-concentration 1,3-propylene glycol and 2,3-butanediol.
Need to check novelty before this filing date? Find Prior Art