CN112844315A - Photoresponse complexing adsorbent and preparation method and application thereof - Google Patents

Photoresponse complexing adsorbent and preparation method and application thereof Download PDF

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CN112844315A
CN112844315A CN202011552068.2A CN202011552068A CN112844315A CN 112844315 A CN112844315 A CN 112844315A CN 202011552068 A CN202011552068 A CN 202011552068A CN 112844315 A CN112844315 A CN 112844315A
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CN112844315B (en
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孙林兵
钟文
周金健
刘晓勤
李玉霞
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Nanjing Tech University
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
    • B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
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    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03

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Abstract

The invention discloses a photoresponse complexing adsorbent and a preparation method and application thereof.A photoresponse complexing adsorbent is prepared by taking a porous material as a carrier and loading photoresponse molecules and complexing active sites, and the adsorption characteristic of the complexing active sites is regulated and controlled by the photoresponse molecules under the illumination condition, so that the adsorption quantity of the adsorbent is changed, and the adsorption and desorption behaviors of gas are remotely regulated and controlled; wherein, the complexing active site comprises Cu (I), Ag (I), Pd (II), Fe (III), Co (II), Ni (II) and Zn (II), the mass fraction of the photoresponsive molecule is 0.5-20%, and the load of the complexing active site is 0.1-6 mmol/g. The monovalent copper ions in the photoresponse complexing adsorbent have a complexing adsorption effect, the adsorption characteristic of the adsorbent is regulated and controlled by controlling the illumination condition, and the photoresponse complexing adsorbent can be applied to fuel oil desulfurization, olefin alkane separation and carbon monoxide recovery.

Description

Photoresponse complexing adsorbent and preparation method and application thereof
Technical Field
The invention belongs to the technical field of chemical separation, and particularly relates to a photoresponse complexing adsorbent and a preparation method and application thereof.
Background
The environmental problems associated with the combustion of large quantities of sulfur-containing fuel oils are becoming increasingly serious. Although hydrodesulfurization is widely used to effectively remove mercaptans, sulfides, disulfides and the like in fuel oil, it is not reasonable to remove thiophenic sulfides, and thus it is imperative to remove thiophenic sulfides in oil products. The conditions for separating such mixtures are particularly harsh due to the similar molecular size and volatility of the olefins and alkanes. The industrial separation of ethylene/ethane requires rectification at low temperature and high pressure with a consequent huge energy consumption.
Therefore, it is of great interest to develop an efficient and energy-saving olefin/paraffin separation technique. Carbon monoxide is an important raw material in the chemical industry and is used for synthesizing various chemicals such as polymer fibers, plastics, medicines, and the like. Although the carbon monoxide is rich in source, most of the raw material gas is doped with N2、CH4And H2And other impurity gases cannot be directly used for synthesizing chemicals, and further purification treatment is required.
The adsorption separation technology has mild operation conditions, simple process and low cost, and becomes a research hotspot at present. The development of an adsorbent with large adsorption capacity and high adsorption selectivity is still the core of the application of the technology. Because the complexing active site can form a complexing acting force with an unsaturated bond, the acting force is stronger than Van der Waals force and weaker than chemical acting force, and therefore, the porous adsorbent with the complexing active site as a complexing adsorbent shows excellent adsorption performance and regeneration performance in the application aspects of deep desulfurization of fuel oil, olefin and alkane separation, carbon monoxide recovery and the like.
However, there are disadvantages in that the regeneration of the adsorbent is high in energy consumption and complicated in process. Particularly, most of complex adsorbents can selectively adsorb adsorbates by utilizing complex active sites, but the traditional pressure reduction or temperature rise desorption is needed during desorption, so that the energy consumption is high, the operation is complicated, and the application of the adsorbents is limited.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned technical drawbacks.
In one aspect of the present invention, the present invention overcomes the deficiencies of the prior art materials and provides a photoresponsive complexing adsorbent.
In order to solve the technical problems, the invention provides the following technical scheme: a photoresponse complexing adsorbent comprises a porous material serving as a carrier, a photoresponse molecule and a complexing active site are loaded, and the photoresponse complexing adsorbent is prepared; wherein the complexing active site comprises Cu (I), Ag (I), Pd (II), Fe (III), Co (II), Ni (II) and Zn (II); wherein the mass fraction of the photoresponse molecules is 0.5-20%; wherein the load capacity of the complexing active site is 0.1-6 mmol/g.
As a preferable embodiment of the photoresponsive complex adsorbent of the present invention, wherein: the photoresponsive molecules include spiropyrans, coumarins, indigoids and derivatives thereof.
As a preferable embodiment of the photoresponsive complex adsorbent of the present invention, wherein: the carrier is a zeolite molecular sieve, porous oxide, a metal organic framework and porous carbon;
wherein the molecular sieve is A type, X type, Y type, ZSM type molecular sieve, mordenite orOne or more of clinoptilolite; the porous oxide is porous Al2O3、SiO2、ZrO2、CeO2、CaO、ZnO、MnO2Or one or more of MgO.
As a preferable embodiment of the photoresponsive complex adsorbent of the present invention, wherein: the metal organic framework material is a three-dimensional network porous structure formed by self-assembly of metal nodes and organic ligands containing carboxylic acid, imidazole, pyrimidine or pyridine, and is generally prepared by self-assembly of metal salts and organic ligands;
the metal organic framework material comprises one or more of PCNs, PCP or Laval-Walsh series metal organic framework materials.
As a preferable embodiment of the photoresponsive complex adsorbent of the present invention, wherein: the PCNs series metal organic framework material comprises one or more of PCN-13, PCN-14, PCN-11, PCN-22 or HKUST-1 metal organic frameworks;
the Laval series metal organic framework material comprises one or more of MIL-100, MIL-101, MIL-125, MIL-53, MIL-47, MIL-91, MIL-96, MIL-110, MIL-167, MIL-168, MIL-169 or MIL-68.
The invention also aims to overcome the defects of the existing materials and provides a preparation method of the photoresponse complexing adsorbent, which comprises the steps of introducing photoresponse molecules by an impregnation method, introducing complexing active sites by the impregnation method after washing and drying, and washing and drying to prepare the photoresponse complexing adsorbent; wherein the mass of the photoresponse molecule accounts for 0.5-20% of the mass fraction of the porous material, and the load of the complexing active site is 0.1-6 mmol/g.
It is another object of the present invention to overcome the disadvantages of the prior art materials and to provide a use of a photoresponsive complex adsorbent, comprising,
the use in the desulfurization of gasoline, the separation of olefins and paraffins or the adsorption of carbon monoxide.
As a preferred embodiment of the application of the photoresponsive complex adsorbent of the present invention, wherein: the gasoline is one or more of thiophene, benzothiophene, 2-methylbenzothiophene or 4, 6-dimethyl dibenzothiophene sulfide gasoline; the olefin is one or more of ethylene, propylene or butylene; the alkane is one or more of methane, ethane, propane or butane; the carbon monoxide adsorption is adsorption from a carbon monoxide mixed gas.
As a preferred embodiment of the application of the photoresponsive complex adsorbent of the present invention, wherein: the carbon monoxide mixed gas comprises carbon monoxide and one or more of carbon dioxide, nitrogen, oxygen, methane, hydrogen, nitrogen monoxide, nitrogen dioxide, ethane, propane or butane.
As a preferred embodiment of the application of the photoresponsive complex adsorbent of the present invention, wherein: the application in gasoline desulfurization is that the gasoline is contacted under the conditions that the temperature is 20-50 ℃ and the pressure is 0.1-0.5 MPa;
the application in olefin and alkane separation and/or carbon monoxide adsorption is to contact under the conditions that the temperature is 0-70 ℃ and the pressure is 0-30 MPa.
The invention has the beneficial effects that:
the invention utilizes the actions of reversible cis-trans isomerism, bond breaking, ring opening and ring closing polymerization and the like of photoresponse molecules under the condition of ultraviolet-visible light, thereby playing a role in adjusting active sites of materials, and has good adsorption and regeneration effects on gas molecules with unsaturated bonds, thiophene and derivatives thereof by taking porous materials as carriers. The photoresponse molecule adjusts the complexing active site, the regulation and control of the adsorption capacity of the adsorbent before and after illumination are realized, and the photoresponse complexing adsorbent which is flexible in desorption and can be remotely controlled is obtained.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
0.1g of MIL-101 and 0.1g of coumarin are put into 20mL of ethanol solvent to be stirred for 4 hours, washed and dried, and the photoresponse adsorbent is obtained. Then 0.1g of photoresponse adsorbent and 0.05g of cuprous chloride are placed in 10mL of ammonia water solution and stirred for 2 hours, and the photoresponse complexing adsorbent is obtained after filtration, washing and drying.
According to the table 1, 0.1g of photoresponse adsorbent is weighed, stirred with different salt solutions with complexing active sites for 2 hours, filtered and washed to obtain the photoresponse complexing adsorbent.
TABLE 1
Serial number Carrier Light responsive molecule Metal salt Solvent(s) Complexing active site content (mmol/g)
1 MIL-101 Coumarin compound CuCl Aqueous ammonia 1.17
2 MIL-101 Coumarin compound NiCl2 Deionized water 2.15
3 MIL-101 Coumarin compound PdCl2 Deionized water 1.91
4 MIL-101 Coumarin compound FeCl3 Deionized water 1.25
5 MIL-101 Coumarin compound CoCl2 Deionized water 1.65
6 MIL-101 Coumarin compound NiCl2 Deionized water 1.73
7 MIL-101 Coumarin compound ZnCl2 Deionized water 2.01
Example 2
0.1g of MIL-101 and 0.1g of diarylethene were put in 20mL of acetonitrile solvent, stirred for 4 hours, washed and dried to obtain a photoresponsive adsorbent. Then 0.1g of photoresponse adsorbent and 0.05g of cuprous chloride are placed in 10mL of ammonia water solution and stirred for 2 hours, and the photoresponse complexing adsorbent is obtained after filtration, washing and drying.
According to the table 2, different metal organic frameworks and diarylethene are weighed and placed in 20mL acetonitrile solvent to be stirred, washed and dried, and the photoresponse adsorbent is obtained. Weighing 0.1g of photoresponse adsorbent, stirring the photoresponse adsorbent and a salt solution with a complexing active site for 2 hours, filtering and washing to obtain the photoresponse complexing adsorbent.
TABLE 2
Serial number Carrier Light responseMolecule Metal salt Solvent(s) Complexing active site content (mmol/g)
1 MIL-101 Diarylethenes CuCl Aqueous ammonia 1.25
2 MIL-53 Diarylethenes NiCl2 Deionized water 1.95
3 UiO-66 Diarylethenes PdCl2 Deionized water 1.97
4 ZIF-8 Diarylethenes FeCl3 Deionized water 1.62
5 UiO-67 Diaryl groupEthylene CoCl2 Deionized water 1.68
6 MOF-74 Diarylethenes NiCl2 Deionized water 1.93
7 PCN-22 Diarylethenes ZnCl2 Deionized water 1.65
Example 3
0.1g of SBA-15-and 0.1g of spiropyran are placed in 20mL of acetonitrile solvent, stirred for 4 hours, washed and dried to obtain the photoresponse adsorbent. Then 0.1g of photoresponse adsorbent and 0.05g of cuprous chloride are placed in 10mL of ammonia water solution and stirred for 2 hours, and the photoresponse complexing adsorbent is obtained after filtration, washing and drying.
Weighing different porous oxides and spiropyrans according to the table 3, placing the porous oxides and the spiropyrans in an acetonitrile solvent, stirring, washing and drying to obtain the photoresponse adsorbent. Weighing 0.1g of photoresponse adsorbent, stirring the photoresponse adsorbent and a salt solution with a complexing active site for 2 hours, filtering and washing to obtain the photoresponse complexing adsorbent.
TABLE 3
Figure BDA0002857503170000051
Figure BDA0002857503170000061
Example 4
0.1g of ZSM-5 and 0.1g of coumarin are put into 20mL of acetonitrile solvent to be stirred for 4 hours, washed and dried to obtain the photoresponse adsorbent. Then 0.1g of photoresponse adsorbent and 0.05g of cuprous chloride are placed in 10mL of ammonia water solution and stirred for 2 hours, and the photoresponse complexing adsorbent is obtained after filtration, washing and drying.
According to the table 4, ZSM-5 and the photoresponse molecule are weighed and stirred in the acetonitrile solvent, washed and dried to obtain the photoresponse adsorbent. Weighing 0.1g of photoresponse adsorbent, stirring the photoresponse adsorbent and a salt solution with a complexing active site for 2 hours, filtering and washing to obtain the photoresponse complexing adsorbent.
TABLE 4
Figure BDA0002857503170000062
Example 5
The photoresponsive complex adsorbent prepared in example 1 was subjected to desulfurization test and gas adsorption test.
Gas adsorption experiment: weighing 0.050g of photoresponse complexing adsorbent, and putting the photoresponse complexing adsorbent into an ASAP (anaerobic absorption activated sludge) gas adsorption instrument to adsorb CO gas; and then placing the photoresponse complexing adsorbent in 365nm ultraviolet light for 2h to repeatedly measure the adsorption capacity of the photoresponse complexing adsorbent, and calculating to obtain the adsorption difference before and after the ultraviolet light, wherein the value is the value for realizing intelligent desorption on the adsorbent by utilizing the illumination condition.
Desulfurization experiment: and (3) measuring the desulfurization performance of the adsorbent by adopting a dynamic adsorption method. Placing 0.1g of photoresponse complexing adsorbent in a glass column, introducing model oil with the sulfur content of 500ppm at the rate of 3mL/h, adsorbing at normal temperature, and analyzing the sulfur content of the model gasoline after adsorption by using a Walian chromatography VARIANC-3800. And then placing the photoresponse complexing adsorbent in 365nm ultraviolet light for 2h, and repeating the operation to measure the adsorption quantity. And calculating to obtain an adsorption difference value before and after ultraviolet light illumination, wherein the value is the value for realizing intelligent desorption on the adsorbent by utilizing the illumination condition.
The results are as follows:
TABLE 5
Figure BDA0002857503170000071
Example 6
Sample No. 1 from example 1 was subjected to adsorption and desulfurization with different concentration gradients:
gas adsorption experiment: weighing 0.050g of photoresponse complexing adsorbent, and putting the photoresponse complexing adsorbent into an ASAP (anaerobic absorption activated sludge) gas adsorption instrument to adsorb CO gas; and then placing the photoresponse complexing adsorbent in 365nm ultraviolet light for 2 hours to repeatedly measure the adsorption capacity of the photoresponse complexing adsorbent, and calculating to obtain the adsorption difference before and after the ultraviolet light, wherein the value is the value for realizing intelligent desorption on the adsorbent by utilizing the illumination condition.
Desulfurization experiment: and (3) measuring the desulfurization performance of the adsorbent by adopting a dynamic adsorption method. Placing 0.1g of photoresponse complexing adsorbent in a glass column, introducing model oil with the sulfur content of 500ppm at the rate of 3mL/h, adsorbing at normal temperature, and analyzing the sulfur content of the model gasoline after adsorption by using a Walian chromatography VARIANC-3800. And then placing the photoresponse complexing adsorbent in 365nm ultraviolet light for 2 hours to repeat the operation to measure the adsorption quantity. And calculating to obtain an adsorption difference value before and after ultraviolet light illumination, wherein the value is the value for realizing intelligent desorption on the adsorbent by utilizing the illumination condition.
The results are as follows:
TABLE 6
Figure BDA0002857503170000081
It can be seen that when the content of the photoresponsive molecule is too small, it cannot effectively act with the active site: when the number of active sites is too small, the adsorption effect is not obvious, and the active sites can not effectively act with photoresponsive molecules: the light response molecules are too many, the steric hindrance is increased, the light response molecules can not be reversibly transformed, and the adsorption amount of the adsorbent is reduced due to the increase of the content of non-adsorbed substances; when the number of active sites is too large, the active sites are aggregated and the adsorbate cannot be effectively adsorbed. The invention optimizes the mass fraction of photoresponse molecules and the load of complexing active sites, and realizes the optimal photoresponse complexing adsorption effect.
The invention utilizes the actions of reversible cis-trans isomerism, bond breaking, ring opening and ring closing polymerization and the like of photoresponse molecules under the condition of ultraviolet-visible light, thereby playing a role in adjusting active sites of materials, and has good adsorption and regeneration effects on gas molecules with unsaturated bonds, thiophene and derivatives thereof by taking porous materials as carriers. The photoresponse molecule adjusts the complexing active site, the regulation and control of the adsorption capacity of the adsorbent before and after illumination are realized, and the photoresponse complexing adsorbent which is flexible in desorption and can be remotely controlled is obtained.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A photoresponsive complex adsorbent characterized by: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
taking a porous material as a carrier, and loading photoresponse molecules and complexing active sites to prepare a photoresponse complexing adsorbent;
wherein the complexing active site comprises Cu (I), Ag (I), Pd (II), Fe (III), Co (II), Ni (II) and Zn (II);
wherein the mass fraction of the photoresponse molecules is 0.5-20%;
wherein the load capacity of the complexing active site is 0.1-6 mmol/g.
2. The photoresponsive complex adsorbent of claim 1, characterized in that: the photoresponsive molecules include spiropyrans, coumarins, indigoids and derivatives thereof.
3. The photoresponsive complex adsorbent according to claim 1 or 2, characterized in that: the carrier is a zeolite molecular sieve, porous oxide, a metal organic framework and porous carbon;
wherein the molecular sieve is one or more of A-type, X-type, Y-type, ZSM-type molecular sieve, mordenite or clinoptilolite; the porous oxide is porous Al2O3、SiO2、ZrO2、CeO2、CaO、ZnO、MnO2Or one or more of MgO.
4. The photoresponsive complex adsorbent of claim 3, characterized in that: the metal organic framework material is a three-dimensional network porous structure formed by self-assembly of metal nodes and organic ligands containing carboxylic acid, imidazole, pyrimidine or pyridine, and is generally prepared by self-assembly of metal salts and organic ligands;
the metal organic framework material comprises one or more of PCNs, PCP or Laval-Walsh series metal organic framework materials.
5. The photoresponsive complex adsorbent of claim 4, characterized in that: the PCNs series metal organic framework material comprises one or more of PCN-13, PCN-14, PCN-11, PCN-22 or HKUST-1 metal organic frameworks;
the Laval series metal organic framework material comprises one or more of MIL-100, MIL-101, MIL-125, MIL-53, MIL-47, MIL-91, MIL-96, MIL-110, MIL-167, MIL-168, MIL-169 or MIL-68.
6. A method for preparing the photoresponse complexing adsorbent as defined in any one of claims 1 to 5, wherein the method comprises the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
introducing photoresponse molecules by an impregnation method, washing and drying, introducing complexing active sites by the impregnation method, washing and drying to prepare a photoresponse complexing adsorbent;
wherein the mass of the photoresponse molecule accounts for 0.5-20% of the mass fraction of the porous material, and the load of the complexing active site is 0.1-6 mmol/g.
7. Use of the photoresponsive complex adsorbent according to any one of claims 1 to 6, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the use in the desulfurization of gasoline, the separation of olefins and paraffins or the adsorption of carbon monoxide.
8. The use of claim 7, wherein: the gasoline is one or more of thiophene, benzothiophene, 2-methylbenzothiophene or 4, 6-dimethyl dibenzothiophene sulfide gasoline; the olefin is one or more of ethylene, propylene or butylene; the alkane is one or more of methane, ethane, propane or butane; the carbon monoxide adsorption is adsorption from a carbon monoxide mixed gas.
9. The use of claim 8, wherein: the carbon monoxide mixed gas comprises carbon monoxide and one or more of carbon dioxide, nitrogen, oxygen, methane, hydrogen, nitrogen monoxide, nitrogen dioxide, ethane, propane or butane.
10. The use of claim 7, wherein: the application in gasoline desulfurization is that the gasoline is contacted under the conditions that the temperature is 20-50 ℃ and the pressure is 0.1-0.5 MPa;
the application in olefin and alkane separation and/or carbon monoxide adsorption is to contact under the conditions that the temperature is 0-70 ℃ and the pressure is 0-30 MPa.
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CN115779866A (en) * 2022-11-21 2023-03-14 盐城工学院 Spiropyran functionalized photoresponse adsorption material and preparation method and application thereof
CN115779866B (en) * 2022-11-21 2024-05-07 盐城工学院 Spiropyran functionalized light-responsive adsorption material and preparation method and application thereof

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