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Magnetic corncob hierarchical porous carbon microsphere surface imprinting material and preparation method and applications thereof

A technology of surface imprinting and corn cob, which is applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve the problems that water treatment technology cannot meet the needs of advanced treatment, and achieve excellent regeneration performance , abundant resources and large adsorption capacity

Pending Publication Date: 2019-09-20
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many treatment methods for PEEDs organic pollutants, and traditional water treatment technologies cannot meet the needs of advanced treatment at all.

Method used

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  • Magnetic corncob hierarchical porous carbon microsphere surface imprinting material and preparation method and applications thereof
  • Magnetic corncob hierarchical porous carbon microsphere surface imprinting material and preparation method and applications thereof
  • Magnetic corncob hierarchical porous carbon microsphere surface imprinting material and preparation method and applications thereof

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preparation example Construction

[0059] The embodiment of the present invention discloses a preparation method of a magnetic corncob hierarchical porous carbon microsphere surface imprinted material, comprising the following steps:

[0060] (1) Preparation of Corncob Hierarchical Porous Carbon Microspheres

[0061] The collected corncobs are cleaned, dried, pulverized, and sieved to 200-300um to obtain corncob powder. The above-mentioned prepared corncob powder and sodium hydroxide are mixed evenly according to the mass ratio of 1:1-3, and then to the Add nicotinamide and 1-(3-hydroxy n-propyl) cyclopentanol to the above mixture, according to the mass ratio of nicotinamide and 1-(3-hydroxy n-propyl) cyclopentanol as 1-2:1, And control the addition of nicotinamide and 1-(3-hydroxyl n-propyl) cyclopentanol to be 2.0-3.0% of the above mixture, then put the mixture into a mortar and grind; then transfer the above mixture to the tube furnace In the process, feed nitrogen gas at a flow rate of 100-200mL / min for 2....

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Abstract

The invention discloses a preparation method of a magnetic corncob hierarchical porous carbon microsphere surface imprinting material. Corncob is taken as the carbon source to prepare a biomass carbon microsphere; sodium hydroxide is taken as an activator; a certain amount of nicotinamide and 1-(3-hydroxyl-n-propyl) cyclopentanol is added; the prepared corncob hierarchical porous carbon microsphere is taken as a stabilizing agent of Pickering emulsion; 4-chlorophenol (4-CP) is taken as a template molecule, toluene is taken as a pore forming agent and an organic solvent; ethylene glycol dimethacrylate (EGDMA) is taken as a crosslinking agent, 4-vinyl pyridine is taken as a functional monomer, EGDMA and 4-vinyl pyridine are mixed, the mixture is taken as an oil phase; the corncob hierarchical porous carbon microsphere and 2,2-diazobis(2-methylpropionamidine) dihydrochloride are added into water and evenly dispersed to prepare a water phase; the oil phase and the water phase are mixed and processed by ultrasonic waves to prepare stable Pickering emulsion; and then Pickering emulsion polymerization is carried out to prepare the magnetic corncob hierarchical porous carbon microsphere surface imprinting material, which can be applied to selective identification and separation of 4-chlorophenol in a water environment.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, and more specifically relates to a magnetic corncob hierarchical porous carbon microsphere surface imprinted material and a preparation method and application thereof. Background technique [0002] In recent years, with the widespread use of pesticides, phenolic fine chemical raw material preservatives, and antioxidants in industrial and agricultural production, phenolic environmental endocrine disruptors (Phenolic Environmental Endocrine Disruptors, PEEDs), such as pentachlorophenol, Polychlorinated phenols such as chlorophenols, trichlorophenols, and bisphenols are seriously polluted, especially the extensive use of pesticides, which aggravates the water pollution of PEEDs. However, the tracking research on environmental endocrine disruptors started relatively late in China. For PEEDs with complex components, similar properties and low content, the rapid, sensitive, targeted and ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30C02F101/34C02F101/36
CPCB01J20/20B01J20/268B01J20/28009B01J20/28021B01J20/3057B01J20/3078B01J2220/485C02F1/288C02F2101/305C02F2101/345C02F2101/36
Inventor 毛艳丽刘彪张文军陈卓宋忠贤黄真真延旭罗煜昽鲁志鹏陈芳李华敏赵二丽李明李宾宿显瑞张东令付清龙张红力徐永争张泽靳一鸣吴慧南王召东罗世田
Owner HENAN UNIV OF URBAN CONSTR
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