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Title:
PREPARATION METHOD FOR MAGNETIC COVALENT ORGANIC FRAMEWORK, MTFBD-PPD, PRODUCT AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/188209
Kind Code:
A1
Abstract:
A preparation method for a magnetic covalent organic framework, mTFBD-PPD, a product and the use thereof, which belong to the technical field of preparation of a toxin adsorbent. The preparation method comprises: dissolving 3,3',5,5'-tetraaldehyde-4,4'-dihydroxybiphenyl and an alkali in water to obtain a solution; dispersing p-phenylenediamine and magnetic nanoparticles in an organic solvent to obtain a dispersion; and mixing the solution with the dispersion, and reacting same to obtain a magnetic covalent organic framework, mTFBD-PPD. The new adsorbent, mTFBD-PPD, which is prepared by combining a covalent organic framework material with magnetic nanoparticles, has the characteristics of a large specific surface area, good thermal stability, a strong selectivity, being capable of rapid separation, being reusable, etc.; and same can effectively improve the adsorption rate during the use thereof in the adsorption of diarrhetic shellfish toxins.

Inventors:
XIE WANCUI (CN)
YANG XIHONG (CN)
SONG LIN (CN)
CHE HONGXIA (CN)
DONG XIUFANG (CN)
LI HONGYAN (CN)
DONG ZEQUN (CN)
GUO HAO (CN)
Application Number:
PCT/CN2021/083288
Publication Date:
September 15, 2022
Filing Date:
March 26, 2021
Export Citation:
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Assignee:
QINGDAO UNIV OF SCIENCE AND TECHNOLOGY (CN)
International Classes:
B01J20/26; C08G12/08; B01J20/28; B01J20/30; C02F1/28; C08K3/22; C08K9/06
Foreign References:
CN110157008A2019-08-23
CN110090624A2019-08-06
CN110215905A2019-09-10
Other References:
NIU LIN;WU AIMING;WANG JUNYU;WANG HONGYANG;TANG ZHI;WANG XIA;ZHAO XIAOLI: "Advances in Preparation Methods of Magnetic Covalent Organic Frameworks", RESEARCH OF ENVIRONMENTAL SCIENCES, vol. 33, no. 9, 12 March 2020 (2020-03-12), pages 2118 - 2128, XP055965950, ISSN: 1001-6929, DOI: 10.13198/j.issn.1001-6929.2020.03.04
ZHANG LEI, LIANG RONGRAN, HANG CHENG, WANG HAIYING, SUN LIN, XU LEI, LIU DAIRONG, ZHANG ZHENYI, ZHANG XINGMIN, CHANG FEIFAN, ZHAO : "A facile solution-phase synthetic approach for constructing phenol-based porous organic cages and covalent organic frameworks", GREEN CHEMISTRY, vol. 22, no. 8, 1 January 2020 (2020-01-01), GB , pages 2498 - 2504, XP055965672, ISSN: 1463-9262, DOI: 10.1039/C9GC04033A
SALONEN LAURA M; PINELA SARA R; FERNANDES SORAIA P S; LOUÇANO JOÃO; CARBÓ-ARGIBAY ENRIQUE; SARRIÁ MARISA P; RODRÍGUEZ-ABREU CARLOS: "Adsorption of marine phycotoxin okadaic acid on a covalent organic framework", JOURNAL OF CHROMATOGRAPHY A, vol. 1525, 24 November 2017 (2017-11-24), AMSTERDAM, NL, pages 17 - 22, XP085274445, ISSN: 0021-9673, DOI: 10.1016/j.chroma.2017.10.017
Attorney, Agent or Firm:
BEIJING DONGFANG SHENGFAN IP AGENT FIRM GP (CN)
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