Title:
MAGNETIC CROSS-LINKED β-CYCLODEXTRIN POLYMER ADSORBENT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/073674
Kind Code:
A1
Abstract:
Provided are a magnetic cross-linked β-cyclodextrin polymer adsorbent and a preparation method therefor. The method comprises: using β-cyclodextrin and tetrafluoroterephthalonitrile as polymerization monomers; cross-linking and polymerizing to obtain a tetrafluoroterephthalonitrile-crosslinked β-cyclodextrin polymer; then introducing carboxyl groups onto a backbone of the cross-linked β-cyclodextrin polymer by means of hydrolysis; using carboxylate anions of the carboxyl groups ionized in water as sites to adsorb divalent iron cations and trivalent iron cations and react with sodium hydroxide to achieve the loading of magnetic particles; and finally obtaining a magnetic cross-linked β-cyclodextrin polymer adsorbent. Since the carboxyl group of the magnetic cross-linked β-cyclodextrin polymer adsorbent may generate negatively charged carboxylate anions after ionization in water, the present adsorbent may effectively adsorb cationic dyes, and magnetic recovery may be performed after adsorption.
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Inventors:
HE FUAN (CN)
LIN JIECI (CN)
JIANG HONGLIU (CN)
TAN HONGWEI (CN)
LUO YUWEI (CN)
LIN JIECI (CN)
JIANG HONGLIU (CN)
TAN HONGWEI (CN)
LUO YUWEI (CN)
Application Number:
PCT/CN2019/091612
Publication Date:
April 16, 2020
Filing Date:
June 18, 2019
Export Citation:
Assignee:
UNIV GUANGDONG PETROCHEM TECH (CN)
International Classes:
B01J20/26; B01J20/28; B01J20/30; C02F1/28; C02F101/30
Domestic Patent References:
| WO2016172118A1 | 2016-10-27 |
Foreign References:
| CN108554387A | 2018-09-21 | |||
| CN108404878A | 2018-08-17 | |||
| CN109331793A | 2019-02-15 | |||
| CN107159162A | 2017-09-15 |
Attorney, Agent or Firm:
GUANGZHOU SHENYAN PATENT AGENT OFFICE (CN)
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