Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of bacterial cellulose LDH composite adsorption material

A technology of composite adsorption material and bacterial cellulose, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problem of single adsorption method of bacterial cellulose

Active Publication Date: 2020-12-11
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention intends to provide a preparation method of bacterial cellulose LDH composite adsorption material to solve the technical problem of single adsorption method of bacterial cellulose

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of bacterial cellulose LDH composite adsorption material
  • Preparation method of bacterial cellulose LDH composite adsorption material
  • Preparation method of bacterial cellulose LDH composite adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Add 5 g of bacterial cellulose powder (Hainan Yide Food Co., Ltd.) into 100 ml of deionized water, stir to disperse it, and obtain a bacterial cellulose dispersion. Add 2.5 g of aluminum nitrate and 5 g of magnesium nitrate to the bacterial cellulose dispersion and stir to dissolve the aluminum nitrate and magnesium nitrate to obtain a co-precipitation system. Mix 5ml of prepared 0.2mol / L sodium hydroxide solution with 10ml of 0.5mol / L sodium carbonate solution to obtain 15ml coprecipitant. Add the co-precipitation agent dropwise to the constantly stirring co-precipitation system, and then heat at 70°C for 8 hours. The obtained solid product (precipitation, that is, the adsorption matrix material) is filtered and washed to neutrality, and 100g of deionized water is added to obtain a mixed Suspension. After heating the mixed suspension to 80°C, add 0.1g of p-toluenesulfonic acid and 10g of polyacrylic acid (molecular weight: 2000-5000) and stir for 4 hours. A...

experiment example

[0048] (1) Preparation of Cu(II) standard curve

[0049] Weigh 1.0g of anhydrous copper sulfate standard sample with a balance, put the weighed solid into a 200ml beaker, add 100ml of ethanol solution dropwise, stir, and heat the beaker to 60°C to ensure that the solid sample is completely dissolved. Return to room temperature, transfer it to a 1000ml volumetric flask, and dilute to volume. Take the above prepared 1.0ml of Cu(II) standard solution with a concentration of 10 μg / ml, transfer it to a 50ml volumetric flask, add 4.0ml of ammonia solution (ammonia:water=1:1), 2.0ml of citric acid (0.5 g / ml); 10.0ml bicyclohexanone oxalthalin two brown solution (0.1%), constant volume. Take 1.2ml, 1.4ml, 1.6ml, 2.0ml standard solutions and prepare them according to the above method. Choose a 1ml cuvette at 610nm and use a blank sample as a reference solution. After preheating for 10 minutes, use a UV-spectrophotometer to measure the absorbance. The equation of Cu(II) standard work...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of sewage treatment, and in particular, relates to a preparation method of a bacterial cellulose LDH composite adsorption material, wherein the preparationmethod comprises a synthesis step and a combination step. In the synthesis step, an aluminum salt solution and a magnesium salt solution are dropwise added into a bacterial cellulose dispersion liquid, a coprecipitator is used for in-situ synthesis of layered double hydroxides on the surface of bacterial cellulose, and the mixture is made into a mixed solution. In the combination step, a catalystand a binding reagent are added into the mixed solution, and a product is obtained after a catalytic reaction. The bacterial cellulose / LDH composite adsorption material prepared by the preparation method has an electrostatic attraction effect, an ion exchange effect, a chelating effect, a physical adsorption effect and the like on heavy metal ions in a polluted water body, overcomes the defect ofa single bacterial cellulose adsorption mode, improves the adsorption effect, and can solve the technical problem that a layered double hydroxide material is unstable in an acidic water environment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a preparation method of bacterial cellulose LDH composite adsorption material. Background technique [0002] Bacterial cellulose (BC) is a cellulose synthesized by artificial fermentation, and its molecular structure is consistent with that of plant cellulose. However, compared with plant cellulose, BC is a fiber network composed of superfine fibers with a fiber diameter of 0.01-0.1 μm. Each fiber is composed of microfibers, and its diameter and width are only 1%-0.1% of cotton fibers. Therefore, BC has excellent properties that plant cellulose does not have, such as high purity, high crystallinity, special ultrafine three-dimensional fiber network structure, non-toxic and harmless, etc. Because of its ultra-fine network structure, high specific surface area, and easy biodegradability, it has certain adsorption capacity for heavy metal ions. However, the single adsorpt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/30B01J20/26C02F1/28C02F101/20B01J20/24
CPCB01J20/24B01J20/08B01J20/041B01J20/261B01J20/262C02F1/286C02F1/281C02F1/285C02F2101/20Y02W10/10
Inventor 王波林福华毛双丹李静博齐高相刘焱超韩晓静柴婕袁昆仑李泽鑫
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com