Magnetic cyclodextrin-based crosslinked polymer adsorption material and preparation method thereof

• Main Authors: DONG WENHAO, XUE JIANRONG, TANG ANPING, YANG ZHENGCHI, SU GANG, LIU LIHUA, WEI ZUOXIAO
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a magnetic cyclodextrin-based crosslinked polymer adsorption material and a preparation method thereof. According to the material, magnetic ferroferric oxide microspheres are used as inner cores, cyclodextrin, epichlorohydrin and polyethylene polyamine are used as raw materials, dialdehyde is used as a crosslinking agent, and core-shell magnetic adsorption polymer microspheres are prepared by using crosslinking active polymer layers for coating online through a reversed-phase microemulsion method. The obtained adsorption material contains not only abundant active groupssuch as amino groups, imine groups and hydroxyl groups but also ferroferric oxide microsphere inner cores with strong magnetism and cyclodextrin units capable of forming clathrate compounds with organic pollutants. The material solves the problems that traditional adsorbents are poor in heavy metal-organic matter composite pollutant disposal effect, low in efficiency and high in cost, heavy metaland organic pollutants in