Super-hydrophobic oil-water separation material based on procyanidine modified shaddock peels and preparation method thereof

A technology for proanthocyanidins and separation materials, applied in the direction of separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of cumbersome preparation process, high cost, unsuitable for industrial production and application, and achieve simple preparation process, easy operation and environmental protection The effect of green preparation

Pending Publication Date: 2020-06-05
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of oil-water separation materials, there have been some literature and patent reports on superhydrophobic biomimetic functional surfaces based on dopamine surface modification, but there are still problems such as cumbersome preparation process, high cost, and unsuitability for industrial production and application.

Method used

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  • Super-hydrophobic oil-water separation material based on procyanidine modified shaddock peels and preparation method thereof
  • Super-hydrophobic oil-water separation material based on procyanidine modified shaddock peels and preparation method thereof
  • Super-hydrophobic oil-water separation material based on procyanidine modified shaddock peels and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Wash the grapefruit peel, boil it for 2 hours at 100°C, then wash it with water and set aside;

[0038] (2) Dissolving procyanidins in water, adding tris(hydroxymethyl)aminomethane to adjust pH to 8.5, to obtain a procyanidin solution with a mass percentage of procyanidins of 1%; dispersing octadecylamine in water to obtain a mass percentage of octadecylamine Aqueous dispersion liquid containing amino hydrophobic modifier with a content of 3%;

[0039](3) soaking the pomelo peel treated in step (1) in the proanthocyanidin solution for 1 hour, taking it out and drying it in a drying oven at 80°C for 2 hours; this process is repeated 5 times to obtain the proanthocyanidin-modified pomelo peel;

[0040] (4) Immerse the proanthocyanidin-modified grapefruit peel obtained in step (3) in an aqueous dispersion of an amino-containing hydrophobic modifier, react at 60° C. for 12 hours, take it out, and dry it in a drying oven at 80° C. for 4 hours to obtain Superhydrophobic ...

Embodiment 2

[0045] (1) Wash the pomelo peels, boil them in water for 2 hours at 94°C, wash them with water, and set aside for later use;

[0046] (2) Dissolving procyanidins in water, adding sodium hydroxide to adjust pH to 9.0, to obtain a procyanidin solution with a mass percentage of procyanidins of 3%; dispersing amino silicone oil (average molecular weight of 50,000, ammonia value of 0.3) in water, The mass percentage of amino silicone oil obtained is 1% amino-containing hydrophobic modifier aqueous dispersion;

[0047] (3) soak the pomelo peel treated in step (1) in the proanthocyanidin solution for 1 hour, take it out and dry it in a drying oven at 80°C for 3 hours; repeat this process 3 times to obtain the proanthocyanidin-modified pomelo peel;

[0048] (4) Immerse the proanthocyanidin-modified grapefruit peel obtained in step (3) in an aqueous dispersion of an amino-containing hydrophobic modifier, react at 70° C. for 8 hours, take it out, and dry it in a drying oven at 100° C. f...

Embodiment 3

[0053] (1) Wash the grapefruit peel, boil it for 2 hours at 90°C, and then wash it with water for later use;

[0054] (2) Dissolving proanthocyanidins in water, adding sodium hydroxide to adjust pH to 8.8, to obtain a procyanidin solution with a mass percentage of procyanidins of 5%; dispersing hexadecylamine in water to obtain a mass percentage of hexadecylamine: 0.5% aqueous dispersion of amino hydrophobic modifier;

[0055] (3) soak the pomelo peel treated in step (1) in the proanthocyanidin solution for 0.5 hour, take it out and dry it in a drying oven at 100°C for 2 hours; repeat this process 3 times to obtain the proanthocyanidin-modified pomelo peel;

[0056] (4) Immerse the proanthocyanidin-modified grapefruit peel obtained in step (3) in an aqueous dispersion containing an amino-containing hydrophobic modifier, react at 80°C for 3 hours, take it out, and dry it in a 90°C drying oven for 2 hours to obtain Superhydrophobic oil-water separation material based on proanth...

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Abstract

The invention discloses an oil-water separation material based on procyanidine modified shaddock peels and a preparation method thereof. Procyanidine is used for carrying out a proper surface pretreatment and modification on the surface of a shaddock peel based material, and the reaction activity is reserved. Moreover, through reactions between catechol groups and derivative groups of procyanidineand amino groups of an amino-containing hydrophobic modifier, the preparation of the super-hydrophobic oil-water separation material, which is based on a green base material and modified raw materials, low in cost, free of pollution, simple in preparation process and wide in raw material source is realized. The chemical reactions between plant polyphenol procyanidine compounds and the amino-containing hydrophobic modifier are utilized, and an aqueous solution is adopted for reactions in the whole process, so that the low-cost, environment-friendly and green preparation of the super-hydrophobic oil-water separation material is realized; the shaddock peels are used as a base material, the waste materials are effectively recovered, and the shaddock peels are a biomass material and can be well degraded.

Description

technical field [0001] The invention belongs to the technical field of oil-water separation materials, and in particular relates to a super-hydrophobic oil-water separation material based on proanthocyanidin modified grapefruit peel and a preparation method thereof. Background technique [0002] With the massive discharge of oily sewage in production and life and the frequent occurrence of crude oil spills at sea, oil pollution in water has become a major problem endangering human health and environmental safety. In order to maintain a good ecological environment and human health, and protect limited water resources, the effective separation of oily sewage has become an urgent problem to be solved. In recent years, with the rapid development of nanotechnology and biomimetic science, people have a systematic understanding of the relationship between the microstructure and wettability of solid surfaces, and functional materials based on superwetting properties have pointed out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/22B01J20/30B01D17/022
CPCB01J20/28011B01J20/22B01D17/0202B01J2220/4825
Inventor 彭新艳刘云鸿吴志华
Owner QUANZHOU NORMAL UNIV
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