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Preparation method of collagen peptide grafted hydrothermal carbon microsphere absorbing agent

A collagen peptide and microsphere adsorption technology, which is applied in the field of biomass resource utilization and biomass adsorption materials, can solve the problems of limitations, restrictions on the application of collagen peptides, limited functional groups, etc., and achieve low cost and good economic benefits and the promotion and application prospect, the effect of cheap cost

Active Publication Date: 2018-11-23
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its water solubility, it limits the application of collagen peptides in the field of adsorption.
[0005] As a new type of carbon-based material, hydrothermal carbon microspheres not only have the advantages of high temperature resistance, radiation resistance, acid and alkali resistance, etc., but also have abundant carbon sources, mild reaction conditions, and do not need to add any organic reagents and catalysts. Green material, but the functional groups on the surface of hydrothermal carbon microspheres are very limited, which greatly limits its application in the adsorption and separation of heavy metal ions

Method used

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  • Preparation method of collagen peptide grafted hydrothermal carbon microsphere absorbing agent
  • Preparation method of collagen peptide grafted hydrothermal carbon microsphere absorbing agent
  • Preparation method of collagen peptide grafted hydrothermal carbon microsphere absorbing agent

Examples

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Effect test

Embodiment 1

[0034] A preparation method of collagen peptide grafted hydrothermal carbon microsphere adsorbent, comprising the following steps:

[0035] Step 1. Cut the waste leather into uniform granular leather, soak 5g of granular leather in 50mL ultrapure water, add 1g of CaO, stir and react at 75°C for 12h, filter, and adjust the pH of the filtrate to neutral with dilute hydrochloric acid. Grinding after drying to obtain collagen peptide powder;

[0036] Step 2: Add an appropriate amount of 20wt% glucose solution into the reaction kettle, tighten the reaction kettle and place it at 180°C for 24 hours, cool to room temperature naturally, wash the reaction product, filter, dry, and dry it in an air atmosphere for 5 The heating rate of °C / min was raised to 300 °C for 5 hours of roasting and carbonization to obtain carboxylated hydrothermal carbon microspheres;

[0037]Step 3. Disperse 1 g of carboxylated hydrothermal carbon microspheres in 20 mL of ultrapure water, ultrasonicate for 3 h...

Embodiment 2

[0039] A preparation method of collagen peptide grafted hydrothermal carbon microsphere adsorbent, comprising the following steps:

[0040] Step 1. Cut the waste leather into uniform granular leather, soak 10g of granular leather in 100mL ultrapure water, add 2g of CaO, stir and react at 75°C for 16h, filter, and adjust the pH of the filtrate to neutral with dilute hydrochloric acid. Grinding after drying to obtain collagen peptide powder;

[0041] Step 2: Add an appropriate amount of 20wt% glucose solution into the reaction kettle, tighten the reaction kettle and place it at 180°C for 24 hours, cool to room temperature naturally, wash the reaction product, filter, dry, and dry it in an air atmosphere for 5 The heating rate of °C / min was raised to 300 °C for 5 hours of roasting and carbonization to obtain carboxylated hydrothermal carbon microspheres;

[0042] Step 3. Disperse 1 g of carboxylated hydrothermal carbon microspheres in 20 mL of ultrapure water, ultrasonicate for ...

Embodiment 3

[0044] A preparation method of collagen peptide grafted hydrothermal carbon microsphere adsorbent, comprising the following steps:

[0045] Step 1. Cut the waste leather into uniform granular leather, soak 10g of granular leather in 100mL ultrapure water, add 1g of CaO, stir and react at 65°C for 16h, filter, and adjust the pH of the filtrate to neutral with dilute hydrochloric acid. Grinding after drying to obtain collagen peptide powder;

[0046] Step 2: Add an appropriate amount of 20wt% glucose solution into the reaction kettle, tighten the reaction kettle and place it at 160°C for 18 hours, cool to room temperature naturally, wash the reaction product, filter, dry, and dry it in an air atmosphere for 5 The heating rate of °C / min was raised to 400 °C for 3 hours of roasting and carbonization to obtain carboxylated hydrothermal carbon microspheres;

[0047] Step 3. Disperse 1 g of carboxylated hydrothermal carbon microspheres in 20 mL of ultrapure water, ultrasonicate for ...

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Abstract

The invention discloses a preparation method of a collagen peptide grafted hydrothermal carbon microsphere absorbing agent. The method comprises the following steps: (1) preparing collagen peptide powder; (2) preparing carboxylated hydrothermal carbon microspheres; (3) dispersing 1-10 parts of the carboxylated water thermal carbon microspheres into 20-50 parts of ultrapure water, carrying out ultrasonic treatment for 1-3 hours, stirring, adding 1-10 parts of a mixture of 1-ethyl-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) to enable the carboxyl group of hydrothermal carbon to be activated, carrying out an ice bath reaction for 30-90min, then adding 1-50 parts of collagen peptide powder, carrying out an ice bath reaction for 30-90min, removing the product froman ice bath, carrying out a reaction for 24h at the room temperature, then filtering, washing and drying to obtain the collagen peptide grafted hydrothermal carbon microsphere absorbing agent. The collagen peptide grafted hydrothermal carbon material has high absorption capacity and selectivity, and can be applied to treatment of wastewater containing heavy metal ions. The preparation method is simple to operate, high in efficiency, simple in preparation process, high in practicality and low in cost; the prepared absorbing agent is an environment-friendly material.

Description

technical field [0001] The invention belongs to the technical field of biomass resource utilization and biomass adsorption materials, and in particular relates to a preparation method of collagen peptide grafted hydrothermal carbon microsphere adsorbent. Background technique [0002] Heavy metal wastewater mainly comes from mining, mineral processing, smelting, electroplating, chemical industry, machinery and other industries. These heavy metal-containing wastewater has chemical toxicity and radiotoxicity, which has caused serious harm to human health and the ecological environment. Compared with traditional heavy metal wastewater treatment technologies such as chemical precipitation, ion exchange, and solvent extraction, biomass adsorption has the advantages of low cost, large adsorption capacity, and regeneration, and is widely used in the separation and enrichment of heavy metal ions in wastewater. , and how to develop a new type of adsorbent with excellent adsorption ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/20
CPCB01J20/22C02F1/285C02F2101/20
Inventor 林晓艳何雨陈彦周建罗学刚
Owner SOUTHWEAT UNIV OF SCI & TECH
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