Preparation of ionic covalent organic frameworks and their …
2022年12月1日 · There are two main strategies to functionalize COFs: one is to design and graft functional groups to the monomers and then synthesize the COFs, known as the “direct …
Preparation of iCOFs COF-DG, TpTGCl, and DhaTGCl
This comprehensive review delves into the myriad applications of COF materials as effective sorbents within the realm of solid-phase extraction, facilitating the recovery of metals from …
Covalent organic frameworks for separation applications
Briefly, in the first step, a Schiff-base COF, TpTGCl, was prepared by the condensation of triaminoguanidinium chloride (TGCl) with 1,3,5-triformylphloroglucinol (Tp), and was then …
Cationic covalent organic framework membranes with stable …
2022年1月15日 · The DhaTG Cl membrane with excellent H + /Fe 2+ selectivity and acid-stability indicated that the pore environment engineering of COF materials by the introduction of OH …
Chemically stable covalent organic framework as ... - ScienceDirect
2020年5月1日 · Covalent organic frameworks (COFs) is made by covalent bonding of light elements, such as carbon, oxygen, nitrogen, boron and hydrogen, which can be flexibly …
Covalent organic framework membranes for efficient separation of ...
2022年11月19日 · Covalent organic frameworks (COF), with rigid, highly ordered and tunable structures, can actively manipulate the synergy of entropic selectivity and enthalpic...
【COF吸附除碘】：在高温下有效捕获低浓度碘的共价有机骨架
通过胍类单体和2,5-二甲氧基对苯二甲醛反应制备的离子型cof材料tgdm，在高温条件下具有高效捕获低浓度碘（i2）的能力。 TGDM表现出出色的吸附性能和稳定性，可在150°C下对150 ppmv …
Guanidinium‐Based Covalent Organic Framework Membranes for …
2024年11月3日 · Herein, we designed a guanidinium-based COF (triaminoguanidine chloride [TGCl]–2,5-dihydroxyterephthaldehyde [DHA]) membrane with a high density of positive …
一种用于选择性和高效捕获 99TcO4− 的胍基离子 COF：离子交换 …
在本研究中，使用 1,2,3-三氨基胍盐酸盐 （TGCl） 和 3,3′-二羟基-[1,1-联苯]-4,4′-二羧醛 （DhBa） 合成了胍基离子共价有机框架 （DhBa-TGCl），以捕获水溶液中的 99TcO4−/ReO4−。
a) Structure of TpTGx, where X = Cl−,Br−,I−, ORTEP diagram and …
Covalent organic frameworks (COFs) are a class of crystalline porous organic polymers with polygonal porosity and highly ordered structures. The most prominent feature of...
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