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Biomass-based adsorption material, preparation method and application thereof

A technology for biomass and oil-absorbing materials, applied in the field of biomass-based adsorption materials and their preparation, achieves the effects of rapid adsorption, wide sources and low cost

Active Publication Date: 2022-08-02
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Faced with such a huge amount of waste, it brings us huge processing and disposal problems

Method used

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  • Biomass-based adsorption material, preparation method and application thereof
  • Biomass-based adsorption material, preparation method and application thereof
  • Biomass-based adsorption material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Wash and air dry the corn stalks produced in Baise City, Guangxi Province;

[0042] (2) get the straw obtained in step (1), manually separate the skin and the pith, then pulverize the pith, and pass through a 40-mesh sieve to obtain corn stalk pith particles;

[0043] (3) take the corn stalk pith particles obtained in step (2) and add them to 90°C hot water, stir for 1 hour, wash with distilled water to neutrality after swelling, and dry;

[0044] (4) Mix the swollen straw particles with the acetic acid-sodium acetate buffer solution of pH=4.8 according to the ratio of corn straw pith to the buffer solution mass-volume ratio of 1:50, the unit is g / mL, add the same amount as in step 1 The mass ratio of corn stalks in 3.5% TEMPO, oxygenated, and shaken at 150 rpm for 1 h at 45 °C;

[0045] (5) Then stearylamine and laccase A (from Trametes versicolor) were added to make stearylamine (octadecylamine, C 18 H 39 N): Enzyme activity: corn stalk pith=0.16:100:1, the uni...

Embodiment 2

[0049] (1) Wash and air dry the corn stalks produced in Baise City, Guangxi Province;

[0050] (2) get the straw obtained in step (1), manually separate the skin and the pith, then pulverize the pith, and pass through a 40-mesh sieve to obtain corn stalk pith particles;

[0051] (3) take the corn stalk pith particles obtained in step (2) and add them to 90°C hot water, stir for 1 hour, wash with distilled water to neutrality after swelling, and dry;

[0052] (4) Mix the swollen straw particles with the acetic acid-sodium acetate buffer solution of pH=4.8 according to the ratio of corn straw pith to the buffer solution mass-volume ratio of 1:50, the unit is g / mL, add in step 1 The corn stover pith mass ratio was 3.5% TEMPO, oxygenated, and shaken at 150 rpm for 1 h at 45 °C;

[0053] (5) Then add stearylamine and laccase A (produced from Trametes versicolor), so that stearylamine: enzyme activity: straw=0.24:100:1, the unit is g:U:g, and the temperature is controlled at 45°C ...

Embodiment 3

[0058] (1) Wash and air dry the corn stalks produced in Baise City, Guangxi Province;

[0059] (2) get the straw obtained in step (1), manually separate the skin and the pith, then pulverize the pith, and pass through a 40-mesh sieve to obtain corn stalk pith particles;

[0060] (3) take the corn stalk pith particles obtained in step (2) and add them to 90°C hot water, stir for 1 hour, wash with distilled water to neutrality after swelling, and dry;

[0061] (4) Mix the swollen straw particles with the acetic acid-sodium acetate buffer solution of pH=4.8 in a ratio of 1:50 in mass volume ratio of corn straw pith to the buffer solution, the unit is g / mL, and the amount added is equal to the mass of the straw. The ratio is 3.5% TEMPO, oxygenated, and shaken at 150 rpm for 1 h at 45 °C;

[0062] (5) Then add stearylamine and laccase A (produced from Trametes versicolor), so that stearylamine: enzyme activity: straw=0.36:100:1, the unit is g:U:g, and the temperature is controlled...

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Abstract

The invention discloses a green preparation method of a biomass-based water body oil spill adsorbent. The method uses biomass agricultural straw waste as the main raw material, uses laccase as the catalytic enzyme, and grafts stearylamine under the mediation of TEMPO, which not only reduces the hydrophilic capacity of the raw material, but also improves the lipophilic performance of the material. The prepared oil spill adsorbent has a maximum oil absorption capacity of 51.3g / g and a water absorption capacity of only 2.74g / g. The oil spill adsorbent prepared by the invention has the advantages of green production process, simple production process, mild preparation conditions, low cost, high product efficiency and the like. The invention has great application value for the remediation of oil spill pollution in water bodies.

Description

technical field [0001] The invention belongs to the technical field of environmental protection new material application and energy utilization, and particularly relates to a biomass-based adsorption material and a preparation method and application thereof. Background technique [0002] my country is a big agricultural country, producing a large amount of agricultural waste every year, of which biomass resources account for the highest proportion, and the annual output of straw biomass-based waste is about 900 million tons. Faced with such a huge amount of waste, it has brought us huge processing and disposal problems. However, straw biomass waste is mainly composed of three components: cellulose, hemicellulose and lignin, all of which are natural polymer materials with excellent performance, rich functional groups and chemically active functional bonds. Therefore, it is urgent to develop green technologies for these biomass wastes and utilize them rationally. [0003] Wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/40C08H8/00E02B15/04
CPCB01J20/24C08H8/00C02F1/285C02F1/286C02F1/40E02B15/04B01J2220/4825B01J2220/4812C02F2103/007Y02A20/204
Inventor 彭丹孔丝纺
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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