Q[8]/SC[6]A supramolecular self-assembly and application thereof

A technology of supramolecular self-assembly and assembly, applied in ion exchange treatment devices, ion exchange, cation exchange, etc., can solve the problems of undiscovered supramolecular skeletons, achieve stable structure, simple preparation, and broad development prospects

Active Publication Date: 2021-05-11
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is no research on the supramolecular framework constructed by the eight-membered cucurbit ring (referred to as Q[8]) and 4-sulfonylcalix[6]arene hydrate (referred to as SC[6]A).

Method used

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  • Q[8]/SC[6]A supramolecular self-assembly and application thereof
  • Q[8]/SC[6]A supramolecular self-assembly and application thereof
  • Q[8]/SC[6]A supramolecular self-assembly and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] An application based on Q[8] / SC[6]A supramolecular self-assembly is attached figure 1 As shown, it is used to trap Na in the alkali metal system + 、K + , Rb + 、Cs + Metal ions get Q[8] / SC[6]A / M n+ assembly, and by adding the resulting crystals to BaCl 2 Perform substitution to get Q[8] / SC[6]A / Ba 2+ Assemblies, and then in mixed acid (0.024M H 2 SO 4 / 6M HCl) to recover Q[8] / SC[6]A supramolecular self-assembly, Ba 2+ The ions are released, the specific method is as follows:

[0046] a. Add 10.20mQ[8] into 2mL 6M hydrochloric acid, oscillate to dissolve completely, and obtain product A; in this step, 6M hydrochloric acid is selected to allow Q[8] to dissolve completely, which is lower than that of 6M hydrochloric acid Q[8]. ] cannot be completely dissolved, and the Q[8] solution higher than 6M hydrochloric acid is not easy to reach saturation;

[0047] b. Add 10.50mg of SC[6]A into 2mL of 6M hydrochloric acid, oscillate to dissolve completely, and obtain product...

Embodiment 2

[0053] A kind of application based on Q[8] / SC[6]A supramolecular self-assembly, which is used to contain Mg 2+ , Ca 2+ 、Sr 2+ 、Ba 2+ Selective trapping of Ca in alkaline earth metal systems 2+ and Sr 2+ , precipitating Ba 2+ , does not trap Mg 2+ , and by adding the resulting crystals to BaCl 2 Replacement, and then add mixed acid (0.024M H 2 SO 4 / 6M HCl) to recover the Q[8] / SC[6]A assembly and release metal ions at the same time, the specific method is as follows:

[0054] a. Add 10.20 mg of octopus to 2 mL of 6M hydrochloric acid, shake to dissolve completely, and obtain product A;

[0055] b. Add 10.50mg of 4-sulfonylcalix[6]arene into 2mL of 6M hydrochloric acid, shake it to completely dissolve it, and obtain product B;

[0056] c. Mg 2+ , Ca 2+ 、Sr 2+ 、Ba 2+ Add 10.40mg of each chloride salt into 2mL of 6M hydrochloric acid, shake to dissolve completely, and obtain product C;

[0057] d. Mix A, B, and C products in a beaker, store them in the air at room t...

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Abstract

The invention discloses a Q[8] / SC[6]A supramolecular self-assembly and an application thereof. The Q[8] / SC[6]A supramolecular self-assembly is used for trapping and releasing metal ions. According to the method, metal ions Na<+>, K<+>, Rb<+>, Cs<+>, Ca<2+> and Sr<2+> can be effectively captured, a Q [8] / SC[6] A / Ba<2+> assembly can be formed by replacing the metal ions in the assembly through BaCl2, then the Q [8] / SC [6] A supramolecular self-assembly is recycled in mixed acid (0.024 M H2SO4 / 6M HCl), meanwhile, the metal ions are released, and the method has great significance in exploring the application of cucurbituril and has wide development prospects.

Description

technical field [0001] The invention relates to the technical field of supramolecular self-assembly applications, in particular to a Q[8] / SC[6]A supramolecular self-assembly and its application. Background technique [0002] Since the outer surface interaction of Q[n]s was proposed in 2014 (OSIQ includes self-induced, anion-induced, and aroma-induced OSIQ), the construction of various Q[n]-based supramolecular frameworks through OSIQ strategies has become a current research topic. focus. [0003] However, no research has been found on supramolecular frameworks constructed by eight-membered cucurbit rings (Q[8] for short) and 4-sulfonylcalix[6]arene hydrates (SC[6]A for short). Contents of the invention [0004] The purpose of the present invention is to provide a Q[8] / SC[6]A supramolecular self-assembly and its application. The present invention can effectively trap metal ions Na + 、K + , Rb + 、Cs + , Ca 2+ 、Sr 2+ , and can pass BaCl 2 Replacement of metal ions in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J39/18B01J47/00
CPCB01J39/18B01J47/00Y02P10/20
Inventor 田利飞郭汉灵张芝华刘明曹龙陈丽霞陶朱
Owner GUIZHOU UNIV
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