CN108314798B - Plant polysaccharide aerogel air purification material and preparation method thereof - Google Patents

Plant polysaccharide aerogel air purification material and preparation method thereof Download PDF

Info

Publication number
CN108314798B
CN108314798B CN201710030373.7A CN201710030373A CN108314798B CN 108314798 B CN108314798 B CN 108314798B CN 201710030373 A CN201710030373 A CN 201710030373A CN 108314798 B CN108314798 B CN 108314798B
Authority
CN
China
Prior art keywords
air purification
purification material
aerogel
plant polysaccharide
plant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710030373.7A
Other languages
Chinese (zh)
Other versions
CN108314798A (en
Inventor
姜发堂
陈茜
肖满
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Licheng Biotechnology Co ltd
Original Assignee
Wuhan Licheng Biotechnology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Licheng Biotechnology Co ltd filed Critical Wuhan Licheng Biotechnology Co ltd
Priority to CN201710030373.7A priority Critical patent/CN108314798B/en
Publication of CN108314798A publication Critical patent/CN108314798A/en
Application granted granted Critical
Publication of CN108314798B publication Critical patent/CN108314798B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2389/00—Characterised by the use of proteins; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2397/00—Characterised by the use of lignin-containing materials
    • C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
    • C08J2405/02—Dextran; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2489/00—Characterised by the use of proteins; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention relates to a plant polysaccharide aerogel air purification material, which is prepared by mainly using konjac glucomannan, gelatin, starch and plant straws as raw materials through a sol-gel and freeze drying method, and the surface of the konjac glucomannan, the gelatin, the starch and the plant straws is subjected to hydrophobic treatment to improve the water resistance of the konjac glucomannan aerogel air purification material. The prepared aerogel has low density, high porosity and high PM2.5 filtering efficiency.

Description

Plant polysaccharide aerogel air purification material and preparation method thereof
Technical Field
The invention belongs to the field of materials and environmental protection, and particularly relates to a plant polysaccharide aerogel air purification material and a preparation method thereof.
Background
The rapid development of modern socioeconomic causes pollution and deterioration of air environment, and new materials are urgently needed to solve the problems. The advent and use of aerogel materials provides a solution to air pollution and aerogel adsorbents with many advantages over conventional technologies, such as little or no adsorption loss, low waste disposal costsHigh efficiency and repeated utilization, etc. Aerogel (Aerogel), also called xerogel, is a highly dispersed solid material having a nanoporous network structure formed by the interpolymerization of colloidal particles or polymer molecules, and filled with a gaseous dispersion medium in the pores. Aerogel materials have a continuous three-dimensional space network structure, continuously adjustable density, low elastic modulus, a typical fractal structure and the like, all of which not only make the materials attract people's interest in basic research, but also have wide application prospects in many fields, such as liquid filter materials, adsorbents, gas filter materials and the like. Researches find that different types of hydrophobic silica aerogels can adsorb organic solvents such as ethanol, toluene, chlorobenzene, trichloroethylene and the like and crude oil, and the adsorption performance of the hydrophobic silica aerogels is two to three times of that of active carbon. The research of M.S. Ahmed.et al found that metal oxide aerogel (containing CaO, MgO and SiO2) and the like can adsorb and adsorb CO2、SO2NOx, CO and H2S and the like. Maldonado-Hodar et al found that carbon aerogels containing controlled sizes adsorbed toluene in an amount of 1180mg/g and completely desorbed at 400 ℃. S.Jun.et al, the adsorption capacity of silica aerogel on benzene vapor reaches 3000 mg/g. Liu et al found that the graphene aerogel doped with titanium dioxide can adsorb and filter pollutants in the air through adsorption and catalytic effects. However, at present, most of the raw materials (precursors) of the aerogel are derived from petroleum products, and the raw materials have limited resources, high cost, high toxicity and difficult degradation, and the aerogel prepared by using the petroleum products as the raw materials has limited application. Therefore, the exploration of raw materials with rich sources and environmental friendliness for preparing the aerogel is urgently needed.
The konjac glucomannan, the gelatin, the potato starch, the wheat straw and other materials have rich sources, are renewable resources, have good safety, biodegradability, biocompatibility and the like, and are ideal materials for preparing organic aerogel; the preparation and application of the plant polysaccharide aerogel material meet the requirements of low-carbon industry, and represent an important direction for the development of the aerogel. At present, a novel cigarette filtering material is developed by using plant polysaccharides such as konjac glucomannan, potato starch, hydroxypropyl methyl cellulose, carrageenan, pectin, sodium alginate, agar and the like as raw materials, and is proved to be capable of effectively reducing the contents of nicotine, tar and nicotine in smoke, and related patents (a plant polysaccharide cigarette filter tip and a preparation method, ZL 201110231849.6) are obtained. Therefore, the konjac glucomannan is adopted as a main material, and the control of the size and the pore structure of the ice crystals in the process of preparing the plant polysaccharide aerogel is researched by utilizing the adsorbability of the konjac glucomannan so as to achieve better adsorbability.
Disclosure of Invention
The invention aims to further provide a plant polysaccharide aerogel air purification material which is prepared from renewable raw materials and has a wide source. The raw material composition of the biodegradable waste gas is mainly natural plant polysaccharide, so that the waste gas after use can be decomposed and utilized by microorganisms in soil, the biodegradable waste gas has biodegradability, and the degraded product does not cause pollution to the environment and has good environmental protection property.
The invention also aims to provide a preparation method of the plant polysaccharide aerogel air purification material. The method is characterized by selecting konjac glucomannan, gelatin, starch and straws which are rich in sources and biodegradable as raw materials, and preparing the plant polysaccharide aerogel by a freeze-drying method through a sol-gel process. The freeze-drying method for preparing the aerogel has the advantages of simple operation, low equipment cost, large-scale production, no three wastes in the production process and operability.
The plant polysaccharide aerogel air purification material prepared by the invention has rich net-shaped structure, has the characteristics of large specific surface area, high porosity, small density and the like, has excellent adsorption performance, has good adsorption effect on particles, dust, formaldehyde, peculiar smell and the like in the air, and can be used as a main material of a high-efficiency air purifier and a mask. The air purifier is used for air purification, so as to realize the adsorption of particles, dust and harmful gases generated by the emission of automobile exhaust, the dust in road and building construction, the emission of factory waste gas, the combustion of biomass (straws and firewood), the incineration of garbage and the like.
In order to achieve the purpose, the invention adopts the following technical measures:
a plant polysaccharide aerogel air purification material is prepared from the following raw materials in percentage by mass:
Figure BDA0001211148000000021
the starch is one of mung bean starch, potato starch, sweet potato starch, wheat starch and corn starch or a mixture of 2-5 of the mung bean starch, the potato starch, the sweet potato starch, the wheat starch and the corn starch in any proportion.
The plant straw is a general term of stem and leaf (ear) parts of mature crops. Typically refers to the remainder of the wheat, rice, corn, potatoes, oilseed rape, cotton, sugar cane and other crops (typically roughages) after harvesting the seed. The mesh number of the plant straw powder is 100-400 meshes.
The inorganic filler is one of nano calcium carbonate (10-100nm), nano silicon dioxide (7-40 nm), nano aluminum oxide (30nm) and nano sodium montmorillonite (20-50 nm) or a mixture of 2-4 of the nano calcium carbonate, the nano silicon dioxide and the nano sodium montmorillonite in any proportion.
A plant polysaccharide aerogel air purification material is prepared from the following raw materials in percentage by mass (in a preferred range):
Figure BDA0001211148000000031
a plant polysaccharide aerogel air purification material is prepared from the following raw materials in percentage by mass (preferably in a range):
Figure BDA0001211148000000032
a plant polysaccharide aerogel air purification material is prepared from the following raw materials in percentage by mass (preferably in the range):
Figure BDA0001211148000000033
Figure BDA0001211148000000041
a plant polysaccharide aerogel air purification material is prepared from the following raw materials in percentage by mass (optimal value):
Figure BDA0001211148000000042
a preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel compounding:
mixing starch, gelatin and water in a certain ratio, and stirring at the temperature of 50-100 ℃ for 10-60 min at the rotating speed of 100-1000 rpm; and adding the konjac glucomannan, the plant straw powder and the inorganic filler according to a certain proportion into the mixed sol, stirring the mixture for 30 to 120min at the temperature of 50 to 100 ℃ and the stirring speed of 100 to 5000rpm, and carrying out vacuum degassing and soaking treatment to obtain the mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mold for molding at 50-100 ℃, wherein the molding thickness is 0.5-10 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment of 4-30 ℃ for 0.5-24 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product obtained in the step (3) in a freezing environment, wherein the pre-freezing temperature is-60 to-10 ℃, and the time is 2 to 24 hours.
(5) Freeze-drying
And (5) placing the pre-frozen product obtained in the step (4) into a freeze dryer for freeze drying at the temperature of-60 to-10 ℃, the vacuum degree of the pre-frozen product is lower than 10Pa to 200Pa, and the drying time is 6h to 36 h.
(6) Demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
The invention further carries out surface hydrophobic modification on the plant polysaccharide aerogel purification material to improve the water resistance of the plant polysaccharide aerogel purification material, and comprises the following steps:
(1) the methyltrichlorosilane was placed in the vacuum desiccator separately from the aerogel sample while simultaneously.
(2) Sealing the dryer, vacuumizing to below 10-100 kPa, heating to 30-60 ℃, and reacting for 6-18 h.
(3) And removing unreacted methyltrichlorosilane and byproducts after the reaction is finished, and continuously reacting the aerogel subjected to surface treatment in a vacuum drier for 1-5 hours.
Compared with the existing air purification material, the invention has the following advantages:
(1) due to the use of renewable polysaccharide protein and other raw materials, the source of the polysaccharide protein is rich;
(2) because the used raw materials are mainly natural plant polysaccharide, the used waste can be decomposed and utilized by microorganisms, the biological degradability is realized, and the degradation products have no pollution to the environment;
(3) because the plant raw material of the straw is used, the processing problem is solved, and the raw material cost is reduced;
(4) the konjac glucomannan and the starch are selected as main raw materials, and the gelatin protein is added, so that the prepared plant polysaccharide aerogel material has rich network structure (the aperture is 0.002-300 mu m), large specific surface area, high porosity (80.00-99.8%), small density (0.003-0.50 g/cm)3) The air purifying material has the characteristics of excellent adsorption performance (the filtering efficiency of PM2.5 particles is 30-99.99%), good adsorption effect on harmful gases such as particles, dust, formaldehyde, peculiar smell and the like in the air, can be used as an air purifying material, and has wide application prospect in the aspect of adsorption materials.
Drawings
Fig. 1 shows the appearance of a plant polysaccharide aerogel sample prepared by a sol-gel and freeze-drying method.
Fig. 2 is SEM pictures of aerogels at different pre-freezing temperatures.
Wherein: a is the aerogel picture prepared in example 2, with a pre-freezing temperature of-15 ℃; b is the picture of the aerogel prepared in example 4, with a pre-freezing temperature of-25 ℃; c is the aerogel picture prepared in example 5, with a pre-freezing temperature of-35 ℃; d is the picture of the aerogel prepared in example 7, the pre-freezing temperature being-45 ℃.
FIG. 3 is a graph of strength versus elasticity for aerogels containing different amounts of starch added.
FIG. 4 is a graph of the filtration efficiency of aerogels prepared in examples one, two, three, and four.
Wherein: the abscissa represents the particle size of the filter particles, and the ordinate represents the filtration efficiency;
-. diamond-solid-example 1, -. tangle-solidup-example 2, -. ● -example 3, -. ■ -example 4.
The specific implementation mode is as follows:
the invention is further illustrated by the following examples, which are intended to better understand the contents of the invention and are not intended to limit the scope of the invention.
The particle size distribution of the nano calcium carbonate adopted in the following embodiment is 10-100nm, the particle size distribution of the nano silicon dioxide is 7-40 nm, the particle size of the nano aluminum oxide is 30nm, and the particle size distribution of the nano sodium-based sodium montmorillonite is 20-50 nm.
Example 1
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 1g of starch, 3g of gelatin and 93.9g of water, stirring at the temperature of 60 ℃ for 20min, and rotating at the speed of 500 rpm; then adding 1g of konjac glucomannan, 1g of rice straw powder and 0.1g of nano calcium carbonate into the mixture, stirring the mixture for 60min at the temperature of 60 ℃ and the stirring speed of 800rpm, and carrying out vacuum degassing soaking treatment to obtain mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mould for forming at 60 ℃, wherein the forming thickness is 2 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 30 ℃ for 2 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-10 ℃ and the time is 8 hours.
(5) Freeze-drying
And (5) freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 10 ℃, the vacuum degree of 200Pa and the drying time of 10 hours.
(6) Demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material. The density is 0.0269g/cm3The compressive strength is 180kPa, the elasticity is 0.65, the average pore diameter is 315nm, and the specific surface area is 60m2The porosity is 80 percent, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 38.0 percent.
Example 2
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 2g of starch, 2g of gelatin and 92.3g of water, stirring at 80 ℃ for 20min, and rotating at 600 rpm; adding 1.5g of konjac glucomannan, 2g of wheat straw powder and 0.2g of nano calcium carbonate into the mixture, stirring the mixture for 90min at the temperature of 80 ℃ and the stirring speed of 900rpm, and degassing and soaking the mixture to obtain mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mold for molding at the temperature of 80 ℃, wherein the molding thickness is 5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 20 ℃ for 6 hours.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-15 ℃ and the time is 10 hours.
(5) Freeze-drying
And (4) freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of-15 ℃, the vacuum degree of 100Pa and the drying time of 18 h.
(6) Demoulding
And taking out the sample from the mold to obtain the plant polysaccharide aerogel air purification material. Density thereofIs 0.0314g/cm3The compressive strength is 287kPa, the elasticity is 0.75, the average pore diameter is 256nm, and the specific surface area is 80m2The porosity is 83%, and the PM2.5 filtering efficiency measured by an 8130 type filter material comprehensive performance test bench is 59.09%.
As shown in picture a in fig. 2, the plant polysaccharide aerogel material has a rich network structure, and has cellular pores, and the pore size distribution is uniform.
Example 3
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 3g of starch, 2g of gelatin and 90.7g of water, stirring for 20min at the temperature of 90 ℃, and rotating at the speed of 600 rpm; and adding 1g of konjac glucomannan, 3g of corn straw powder and 0.3g of nano silicon dioxide into the mixed solution, stirring the mixed solution for 90min at the temperature of 90 ℃ and the stirring speed of 1000rpm, and carrying out vacuum degassing soaking treatment to obtain the mixed sol.
(2) Injection film
And pouring the mixed sol into a mold for molding at 90 ℃, wherein the molding thickness is 5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 15 ℃ for 10 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-20 ℃, and the time is 10 hours.
(5) Freeze-drying
And (5) freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 20 ℃, the vacuum degree of 25Pa and the drying time of 24 hours.
(6) Demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material. The density of the product is 0.0375g/cm3The compressive strength is 436kPa, the elasticity is 0.81, the average pore diameter is 206nm, and the specific surface area is 106m2The porosity is 90.6 percent, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 76.81 percent.
Example 4
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 4g of starch, 2g of gelatin and 91.5g of water, stirring for 30min at the temperature of 90 ℃, and rotating at the speed of 600 rpm; adding 1g of konjac glucomannan, 1g of sugarcane straw powder and 0.5g of nano silicon dioxide, stirring for 120min at the temperature of 90 ℃ and the stirring speed of 1200rpm, and carrying out vacuum degassing soaking treatment to obtain the mixed sol.
(2) Injection film
The sample was poured into a mold at 90 ℃ to be molded to a thickness of 5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 4 ℃ for 12 hours.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-25 ℃ and the time is 12 hours.
(5) Freeze-drying
And (4) freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of-25 ℃, the vacuum degree of 25Pa and the drying time of 28 h.
(6) Demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material. As shown in FIG. 3, the density was 0.0315g/cm3Compressive strength of 389kPa, elasticity of 0.73, average pore diameter of 185nm, specific surface area of 131m2The porosity is 95.6 percent, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 97.32 percent.
As shown in picture b in fig. 2, the plant polysaccharide aerogel material has good overall uniformity of structure, no obvious incomplete part, round and smooth void structure, regular and regular arrangement and uniform pore size distribution.
Example 5
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 4g of starch, 2g of gelatin and 89.6g of water, stirring for 30min at the temperature of 90 ℃, and rotating at the speed of 800 rpm; and adding 1g of konjac glucomannan, 3g of rape straw powder and 0.4g of nano-alumina into the mixture, stirring for 90min at the temperature of 90 ℃ and the stirring speed of 1000rpm, and carrying out vacuum degassing soaking treatment to obtain the mixed sol.
(2) Injection film
The sample was poured into a mold at 90 ℃ to be molded to a thickness of 5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 4 ℃ for 2 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-35 ℃ and the time is 10 hours.
(5) Freeze-drying
And (5) freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 35 ℃, the vacuum degree of 10Pa and the drying time of 24 hours.
(6) Demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material. The density of the powder is 0.044g/cm3The compressive strength is 475kPa, the elasticity is 0.80, the average pore diameter is 85nm, and the specific surface area is 101m2The porosity is 93.6 percent, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 95.32 percent.
As shown in figure 2, picture c, the whole pore size of the plant polysaccharide aerogel material is small, and a layered structure appears locally.
Example 6
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 3g of starch, 3g of gelatin and 90.9g of water, stirring for 30min at the temperature of 90 ℃, and rotating at the speed of 800 rpm; and adding 0.5g of konjac glucomannan, 2g of cotton straw powder and 0.6g of nano aluminum oxide into the mixture, stirring for 120min at the temperature of 90 ℃ and the stirring speed of 1000rpm, and carrying out vacuum degassing soaking treatment to obtain the mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mould for forming at 90 ℃, wherein the forming thickness is 10 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 4 ℃ for 24 hours.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-25 ℃ and the time is 24 hours.
(5) Freeze-drying
Freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 25 ℃, the vacuum degree of 10Pa and the drying time of 36 hours;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
(7) Surface hydrophobization of aerogels
The methyltrichlorosilane was placed separately in a glass bottle container and then placed in a vacuum desiccator with the aerogel sample. Sealing the dryer, vacuumizing to below 10kPa, heating to 60 ℃, and reacting for 12 h. After the reaction is completed, unreacted silane and hydrochloric acid as a byproduct are removed, and the surface-treated aerogel is continuously reacted in a vacuum drier for more than 5 hours. The density of the obtained hydrophobized aerogel material was 0.0407g/cm3Compressive strength of 414kPa, elasticity of 0.78, average pore diameter of 108nm, specific surface area of 161m2The porosity is 95.6 percent, the surface water contact angle is 136 degrees, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 97.87 percent.
Example 7
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 0.1g starch, 4.9g gelatin and 86.8g water, stirring at 100 deg.C for 10min, and rotating at 1000 rpm; and adding 2.5g of konjac glucomannan, 5g of rape straw powder and 0.7g of nano sodium-based montmorillonite into the mixture, stirring for 30min at the temperature of 100 ℃ and the stirring speed of 5000rpm, and carrying out vacuum degassing and soaking treatment to obtain mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mould for forming at 100 ℃, wherein the forming thickness is 0.5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 10 ℃ for 8 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-45 ℃ and the time is 2 hours.
(5) Freeze-drying
Freeze-drying the semi-finished product in the step (4) in a freeze dryer at-45 ℃ under the vacuum degree of 150Pa for 6 h;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
(7) Surface hydrophobization of aerogels
The methyltrichlorosilane was placed separately in a glass bottle container and then placed in a vacuum desiccator with the aerogel sample. Sealing the dryer, vacuumizing to below 10kPa, heating to 60 ℃, and reacting for 12 h. After the reaction is completed, unreacted silane and hydrochloric acid as a byproduct are removed, and the surface-treated aerogel is continuously reacted in a vacuum drier for more than 5 hours. The density of the obtained hydrophobized aerogel material is 0.0526g/cm3The compressive strength is 421kPa, the elasticity is 0.82, the average pore diameter is 55nm, and the specific surface area is 78m2The porosity is 78.6 percent, the surface water contact angle is 128 degrees, and the PM2.5 filtering efficiency measured by adopting an 8130 type filter material comprehensive performance test bench is 78.85 percent.
As shown in the picture d in fig. 2, the whole plant polysaccharide aerogel material presents a connected dendritic pore structure, and fine circular pore structures are distributed therein.
Example 8
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 6g of starch, 0.1g of gelatin and 93.1g of water, stirring at 50 ℃ for 60min, and rotating at 100 rpm; then 0.1g of konjac glucomannan, 0.1g of rape straw powder and 0.6g of nano sodium montmorillonite are added, and the mixture is stirred for 110min at the temperature of 50 ℃ and the stirring speed of 100rpm, and then is subjected to vacuum degassing and soaking treatment to obtain mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mould for forming at 50 ℃, wherein the forming thickness is 8 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 25 ℃ for 4 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-20 ℃, and the time is 20 hours.
(5) Freeze-drying
Freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 20 ℃, the vacuum degree of 80Pa and the drying time of 30 h;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
(7) Surface hydrophobization of aerogels
The methyltrichlorosilane was placed separately in a glass bottle container and then placed in a vacuum desiccator with the aerogel sample. Sealing the dryer, vacuumizing to below 10kPa, heating to 60 ℃, and reacting for 12 h. After the reaction is completed, unreacted silane and hydrochloric acid as a byproduct are removed, and the surface-treated aerogel is continuously reacted in a vacuum drier for more than 5 hours. The density of the obtained hydrophobized aerogel material was 0.521g/cm3The compressive strength is 487kPa, the elasticity is 0.67, the average pore diameter is 102nm, and the specific surface area is 95m2The porosity is 68.6 percent, the surface water contact angle is 129 degrees, and the comprehensive performance test is carried out by adopting 8130 type filter materialThe bench test measured a PM2.5 filtration efficiency of 80.51%.
Example 9
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 5g of starch, 4g of gelatin and 89.2g of water, stirring at 50 ℃ for 60min, and rotating at 100 rpm; and then 0.3g of konjac glucomannan, 0.5g of rape straw powder, 0.2g of nano calcium carbonate, 0.2g of nano silicon dioxide, 0.4g of nano aluminum oxide and 0.2g of sodium montmorillonite are added into the mixture, and the mixture is stirred for 110min at the temperature of 50 ℃ and the stirring speed of 100rpm, and then subjected to vacuum degassing and foaming treatment to obtain the mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mould for forming at 50 ℃, wherein the forming thickness is 8 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 25 ℃ for 4 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-25 ℃ and the time is 20 hours.
(5) Freeze-drying
Freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of-25 ℃, the vacuum degree of 60Pa and the drying time of 28 h;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
(7) Surface hydrophobization of aerogels
The methyltrichlorosilane was placed separately in a glass bottle container and then placed in a vacuum desiccator with the aerogel sample. Sealing the dryer, vacuumizing to below 10kPa, heating to 60 ℃, and reacting for 12 h. After the reaction is completed, unreacted silane and hydrochloric acid as a byproduct are removed, and the surface-treated aerogel is continuously reacted in a vacuum drier for more than 5 hours. The density of the obtained hydrophobized aerogel material is 0.0890g/cm3The compression strength is 512kPa,elasticity of 0.63, average pore diameter of 75nm, and specific surface area of 180m2The porosity is 88.6 percent, the surface water contact angle is 135 degrees, and the PM2.5 filtration efficiency measured by adopting an 8130 type filter material comprehensive performance test bench is 89 percent.
Example 10
A preparation method of a plant polysaccharide aerogel air purification material comprises the following steps:
(1) sol-gel formulations
Mixing 0.5g starch, 5g gelatin and 88g water, stirring at 50 deg.C for 60min, and rotating at 100 rpm; and adding 2g of konjac glucomannan, 4g of rape straw powder and 0.5g of nano sodium-based montmorillonite into the mixture, stirring for 110min at the temperature of 50 ℃ and the stirring speed of 100rpm, and carrying out vacuum degassing soaking treatment to obtain mixed sol.
(2) Injection film
And pouring the mixed sol sample into a mold for molding at 50 ℃, wherein the molding thickness is 5 mm.
(3) Aging treatment
And (3) aging the mold filled with the mixed sol in an environment at 25 ℃ for 4 h.
(4) Pre-freezing
And (4) pre-freezing the semi-finished product in the step (3) in a freezing environment, wherein the pre-freezing temperature is-25 ℃ and the time is 20 hours.
(5) Freeze-drying
Freeze-drying the semi-finished product in the step (4) in a freeze dryer at the temperature of minus 25 ℃, the vacuum degree of 40Pa and the drying time of 30 h;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
(7) Surface hydrophobization of aerogels
The methyltrichlorosilane was placed separately in a glass bottle container and then placed in a vacuum desiccator with the aerogel sample. Sealing the dryer, vacuumizing to below 10kPa, heating to 60 ℃, and reacting for 12 h. After the reaction is completed, unreacted silane and hydrochloric acid as a byproduct are removed, and the surface-treated aerogel is continuously reacted in a vacuum drier for more than 5 hours. To obtainThe density of the obtained hydrophobized aerogel material was 0.0408g/cm3The compressive strength is 390kPa, the elasticity is 0.86, the average pore diameter is 55nm, and the specific surface area is 208m2The porosity is 95.6 percent, the surface water contact angle is 134 degrees, and the PM2.5 filtering efficiency measured by adopting an 8130 type filtering material comprehensive performance test bench is 95.8 percent.

Claims (11)

1. The plant polysaccharide aerogel air purification material is characterized by being prepared from the following raw materials in percentage by mass:
Figure FDA0002762441200000011
2. the plant polysaccharide aerogel air purification material as claimed in claim 1, which is prepared from the following raw materials in percentage by mass:
Figure FDA0002762441200000012
3. the plant polysaccharide aerogel air purification material as claimed in claim 1, which is prepared from the following raw materials in percentage by mass:
Figure FDA0002762441200000013
4. the plant polysaccharide aerogel air purification material as claimed in claim 1, which is prepared from the following raw materials in percentage by mass:
Figure FDA0002762441200000021
5. the plant polysaccharide aerogel air purification material as claimed in claim 1, which is prepared from the following raw materials in percentage by mass:
Figure FDA0002762441200000022
6. the plant polysaccharide aerogel air purification material of any of claims 1-5, wherein: the starch is one or a mixture of 2-5 of mung bean starch, potato starch, sweet potato starch, wheat starch and corn starch in any proportion.
7. The plant polysaccharide aerogel air purification material of any of claims 1-5, wherein: the plant straw powder is one of rice straw powder, wheat straw powder, corn straw powder, potato straw powder, rape straw powder, cotton straw powder and sugarcane straw powder or a mixture of 2-7 of the above materials in any proportion; the mesh number of the plant straw powder is 100-400 meshes.
8. The plant polysaccharide aerogel air purification material of any of claims 1-5, wherein: the inorganic filler is one or a mixture of 2-4 of nano calcium carbonate, nano silicon dioxide, nano alumina and nano sodium-based montmorillonite in any proportion; wherein the particle size of the nano calcium carbonate is 10-100nm, the particle size of the nano silicon dioxide is 7-40 nm, the particle size of the nano aluminum oxide is 30nm, and the particle size of the nano sodium-based montmorillonite is 20-50 nm.
9. The preparation method of the plant polysaccharide aerogel air purification material as claimed in claim 1, comprising the following steps:
(1) sol-gel compounding:
mixing starch, gelatin and water in a certain ratio, and stirring at the temperature of 50-100 ℃ for 10-60 min at the rotating speed of 100-1000 rpm; adding a certain proportion of konjac glucomannan, plant straw powder and an inorganic filler into the mixture, stirring for 30-120 min at the temperature of 50-100 ℃ and the stirring speed of 100-5000 rpm, and carrying out vacuum degassing and bubble treatment to obtain a mixed sol;
(2) injection film
Pouring the mixed sol sample into a mold for molding at 50-100 ℃, wherein the molding thickness is 0.5-10 mm;
(3) aging treatment
Aging the mold filled with the mixed sol in an environment of 4-30 ℃ for 0.5-24 h;
(4) pre-freezing
Pre-freezing the semi-finished product obtained in the step (3) in a freezing environment at the temperature of-60 to-10 ℃ for 2 to 24 hours;
(5) freeze-drying
Placing the pre-frozen product obtained in the step (4) in a freeze dryer for freeze drying at the temperature of-60 to-10 ℃, the vacuum degree of the pre-frozen product is lower than 10 to 200Pa, and the drying time is 6 to 36 hours;
(6) demoulding
And taking out the freeze-dried sample from the mold to obtain the plant polysaccharide aerogel air purification material.
10. The method for preparing a plant polysaccharide aerogel air purification material as claimed in claim 9, wherein the aerogel is treated by surface hydrophobic modification to improve water resistance.
11. The preparation method of the plant polysaccharide aerogel air purification material as claimed in claim 10, wherein the modification treatment comprises the following steps:
(1) placing methyltrichlorosilane separately from the aerogel sample while in a vacuum desiccator;
(2) sealing the dryer, vacuumizing to 10-100 kPa, heating to 30-60 ℃, and reacting for 6-18 h;
(3) and removing unreacted methyltrichlorosilane and byproducts after the reaction is finished, and continuously reacting the aerogel subjected to surface treatment in a vacuum drier for 1-5 hours.
CN201710030373.7A 2017-01-17 2017-01-17 Plant polysaccharide aerogel air purification material and preparation method thereof Active CN108314798B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710030373.7A CN108314798B (en) 2017-01-17 2017-01-17 Plant polysaccharide aerogel air purification material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710030373.7A CN108314798B (en) 2017-01-17 2017-01-17 Plant polysaccharide aerogel air purification material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108314798A CN108314798A (en) 2018-07-24
CN108314798B true CN108314798B (en) 2021-03-05

Family

ID=62892472

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710030373.7A Active CN108314798B (en) 2017-01-17 2017-01-17 Plant polysaccharide aerogel air purification material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108314798B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110124622A (en) * 2019-05-20 2019-08-16 广州派安环保科技有限公司 A kind of minor betterment atmosphere PM2.5NO2Sedimentation adsorbent and process
CN110302766B (en) * 2019-07-02 2022-02-01 陕西师范大学 Application of organic aerogel as air purification material
CN110447967B (en) * 2019-07-10 2022-05-27 武汉力诚生物科技有限公司 Plant polysaccharide aerogel heating non-combustion electronic cigarette holder rod cooling section and preparation method thereof
CN110404508A (en) * 2019-08-06 2019-11-05 中南大学 A kind of soil and preparation method thereof for the airborne particulates that adsorb and degrade
CN111454614B (en) * 2020-05-28 2022-05-24 苏州大学 3D biological printing ink and preparation method and application thereof
CN112544975A (en) * 2020-12-10 2021-03-26 山东省科学院生物研究所 Method for producing fish oil microcapsules by using konjac glucomannan aerogel
CN113197345A (en) * 2021-04-16 2021-08-03 深圳麦克韦尔科技有限公司 Atomizing core material, atomizing core, preparation method of atomizing core and electronic atomizing device
CN113929078B (en) * 2021-11-18 2023-07-21 大连工业大学 Preparation method of graded hole type biomass carbon aerogel material
CN114534697B (en) * 2022-02-14 2023-02-21 江南大学 Preparation method of titanium dioxide-starch nano composite aerogel
CN115124755B (en) * 2022-07-12 2023-06-20 中国农业科学院农产品加工研究所 Method for regulating porous structure and texture of freeze-dried pectin aerogel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613939A (en) * 2013-12-10 2014-03-05 湖北工业大学 Polysaccharide-protein composite membrane and preparation method thereof
CN105924686A (en) * 2016-04-13 2016-09-07 四川大学 Biology base polymer aerogel oil absorption material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613939A (en) * 2013-12-10 2014-03-05 湖北工业大学 Polysaccharide-protein composite membrane and preparation method thereof
CN105924686A (en) * 2016-04-13 2016-09-07 四川大学 Biology base polymer aerogel oil absorption material and preparation method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Facile preparation of clay reinforced konjac glucomannan aerogels";Jing Li等;《RSC Advances》;20140512;第4卷(第42期);第22251-22254页 *
"植物多糖干凝胶的制备及其力学性能";孙小华等;《功能高分子学报》;20120630;第195-201页 *
"魔芋葡甘聚糖/明胶共混膜的研制";董红兵等;《武汉商业服务学院学报》;20131231;第27卷(第6期);第69-71页 *

Also Published As

Publication number Publication date
CN108314798A (en) 2018-07-24

Similar Documents

Publication Publication Date Title
CN108314798B (en) Plant polysaccharide aerogel air purification material and preparation method thereof
Cheng et al. Hierarchical porous carbon fabricated from cellulose-degrading fungus modified rice husks: Ultrahigh surface area and impressive improvement in toluene adsorption
JP6879914B2 (en) Microporous carbon adsorbent from natural carbohydrates
CN107715852B (en) Vanillin modified chitosan-SiO2Composite aerogel material and preparation method and application thereof
CN101214955B (en) Hydrophobic honeycomb activated carbon and preparation method thereof
CN108285556B (en) Plant polysaccharide aerogel sound-absorbing and noise-reducing material and preparation method thereof
CN109513404A (en) A kind of load TiO2The preparation method of the functional fiber element aerogel composite of nano particle
Lim et al. Extrusion of honeycomb monoliths employed with activated carbon-LDPE hybrid materials
CN108285549B (en) Plant polysaccharide heat-preservation and heat-insulation aerogel material and preparation method thereof
CN109759132A (en) The preparation method and composite photocatalyst gel ball of composite photocatalyst gel ball
CN109304141A (en) It is a kind of for adsorbing diatomite/molecular sieves compound material preparation method of volatile organic contaminant
RU2010129935A (en) ACTIVATED COAL FROM MICROCRYSTALLINE CELLULOSE
Zhou et al. Synthesis and CO2 adsorption performance of TEPA-loaded cellulose whisker/silica composite aerogel
CN110575794A (en) super-hydrophobic cotton cellulose aerogel and preparation method and application thereof
Song et al. Facile assembly of mesoporous silica nanoparticles with hierarchical pore structure for CO2 capture
CN104650379A (en) Method for producing three-dimensional net-like material
Zhang et al. Biological self-assembled hyphae/starch porous carbon composites for removal of organic pollutants from water
CN109336640B (en) Application of carbon-based material in building heat preservation industry
CN107790074B (en) Halloysite clay doped graphene aerogel and preparation method thereof
Qu et al. Synthesis and characterization of UiO-66-NH2 incorporated PVA/cellulose nanofibers composite aerogel for enhanced oil–water separation and formaldehyde adsorption
Zhang et al. Cellulose-based materials for carbon capture and conversion
CN113042015A (en) Cyclodextrin modified graphene oxide composite aerogel type organic adsorbent and preparation method and application thereof
CN107876095B (en) A kind of Metal Porous-Organic material and preparation method for indoor air purification
WO2017140026A1 (en) Core-shell type granular active carbon with powdery core and preparation method thereof
CN115367748B (en) High specific surface area formed carbon material and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant