1027 results about "Bipyridine" patented technology

The invention discloses a polyrotaxane covalent organic framework material capable of regulating interlayer spacing through cyclodextrin and application of the polyrotaxane covalent organic framework material, and belongs to the technical field of biological medicine. The polyrotaalkylated covalent organic framework material is obtained by taking a cyclodextrin aromatic multi-amino inclusion compound and a (multi-aldehyde bipyridine) ruthenium (II) complex as structural units and carrying out copolymerization; the cyclodextrin aromatic polyamine inclusion compound is a beta-cyclodextrin p-phenylenediamine inclusion compound with a hydroxyl group or without a hydroxyl group; the (multi-aldehyde dipyridyl) ruthenium (II) complex is tris (4, 4 '-diformaldehyde-2, 2'-dipyridyl) ruthenium (II). The interlayer spacing of the polyrotaxane covalent organic framework material is greatly increased by utilizing a cavity of gamma-cyclodextrin, and meanwhile, the material has excellent photo-thermal and photodynamic activity, is positively charged, and can better adsorb negatively charged bacteria; and the hydrogel is good in biocompatibility and free of toxic and side effects, and has an excellent treatment effect on wounds infected with staphylococcus aureus.

The invention discloses a preparation method of antistatic modified chinlon filaments, and relates to the field of chinlon filaments. When the antistatic modified chinlon filament is prepared, (formylmethyl) diethyl phosphate and 1-aminopyrrole react to prepare pyrrole diethyl phosphate; reacting the hydroxylated multi-walled carbon nanotube with pyrrole diethyl phosphate to obtain a modified multi-walled carbon nanotube; the preparation method comprises the following steps: reacting 2, 2 '-bipyridine-5, 5'-dicarboxylic acid with 2-amino-5-nitrophenol, and then reducing to obtain a benzoxazole diamine monomer; then, adipic acid, 1, 5-diaminopentane and a benzoxazole diamine monomer are subjected to a reaction, and modified polyamide is prepared; uniformly mixing the modified polyamide, the modified multi-walled carbon nanotubes, pyrrole, ferric trichloride and copper chloride, and performing melt spinning to obtain the antistatic modified polyamide filament. The antistatic modified chinlon filament prepared by the invention has excellent antistatic, flame-retardant, anti-aging and mechanical properties.

The invention discloses a flame-retardant corrosion-resistant coating and a preparation method thereof, and relates to the technical field of coatings. When the flame-retardant and corrosion-resistant coating is prepared, hexaaryl biimidazole and epoxy chloropropane are subjected to a reaction, and epoxidized hexaaryl biimidazole is prepared; the pre-modified mica sheet and 3-aminopropyltriethoxysilane are subjected to a reaction, and a modified mica sheet is prepared; the preparation method comprises the following steps: reacting allyl amine with 4 '-[4-(bromomethyl) phenyl]-2, 2': 6 ', 2' '-terpyridyl to obtain allyl terpyridyl; the preparation method comprises the following steps: reacting epoxy resin with allyl terpyridyl to obtain modified epoxy resin; and uniformly mixing the modified epoxy resin, epoxidized hexaaryl biimidazole, the modified mica sheet, isophorone diamine and acetone to prepare the flame-retardant corrosion-resistant coating. The flame-retardant corrosion-resistant coating prepared by the invention has excellent corrosion resistance, flame retardance and self-repairing performance.

The invention relates to the technical field of dye synthesis, and particularly discloses a 5-substituted amino-5 '-acetamido-3, 3'-dipyridyl derivative as well as a preparation method and application of the 5-substituted amino-5 '-acetamido-3, 3'-dipyridyl derivative. The structure of the 5-substituted amino-5 '-acetamido-3, 3'-dipyridyl derivative is as shown in a formula (I) in the specification, according to the application, N-acetyl blue is used as a parent for modification, and different derivative structures are introduced to amino groups, so that the novel bipyridine dye, namely the 5-substituted amino-5 '-acetamido-3, 3'-bipyridine derivative, is obtained. The 5-substituted amino-5 '-acetamido-3, 3'-dipyridyl derivative has higher color development intensity, and has the advantages of comprehensive color fastness, water washing resistance, acid resistance, sublimation resistance, wet friction resistance, excellent performance and the like when being applied to fabric dyeing.

The invention relates to the technical field of chemical synthesis of dyes, in particular to a 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative as well as a preparation method and application of the 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative. According to the 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative and the preparation method thereof, the ornamental blue is used as a parent body for derivatization reaction, different structures are introduced to amino groups, the 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative is obtained and can be used as a dye, and the dye has relatively high color development intensity, bright color, deep dyeing and comprehensive color fastness. The preparation method of the 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative is continuous in process step, high in controllability, large in treatment capacity and suitable for large-scale industrial production, the 5, 5 '-disubstituted amino-3, 3'-dipyridyl derivative is applied to fabric dyeing, and the fabric has the advantages of washing resistance, acid resistance, sublimation resistance, wet friction resistance and the like.

The invention discloses a water body heavy metal ion pollution treatment adsorption filtering membrane and a preparation method thereof, and relates to the technical field of water treatment. When the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared, graphene oxide sequentially reacts with 3-diethylaminopropylamine, tetrabromophenyl porphyrin and N, N-diethyl allylamine, and functionalized graphene oxide is prepared; the preparation method comprises the following steps: reacting cellulose with 4 '-bromo-2, 2': 6 ', 2' '-terpyridyl and maleic anhydride in sequence to prepare modified cellulose; the preparation method comprises the following steps: reacting sodium alginate with propylene oxide to prepare modified sodium alginate; the modified sodium alginate, the modified cellulose, the functionalized graphene oxide, trans, trans-1, 3-butadiene-1, 4-dicarboxylic acid and a photoinitiator are subjected to a reaction, a membrane is prepared, and the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared. The water body heavy metal ion pollution treatment adsorption filtering membrane prepared by the invention has good antibacterial and photocatalytic organic matter degradation capabilities.

The invention provides a substituted amino bipyridine derivative as well as a preparation method and application thereof, the structure of the substituted amino bipyridine derivative is as shown in formula I. In the formula, R1, R2, R3 and R4 are independently selected from any one of H, C1-C6 alkyl, C2-C6 alkenyl, C2-C20 alkynyl, C3-C6 cycloalkyl, C5-C20 aryl or C5-C20 heterocyclic radical; when R1, R2, R3 and R4 are not methyl, no more than one of R1, R2, R3 and R4 is H; and when any one of R1, R2, R3 and R4 is methyl, the rest groups are independently selected from H or methyl. When the substituted amino dipyridyl derivative provided by the invention is used as a blue dye, the dyed blue dye is bright in color, deep in dyeing and comprehensive in dyeing fastness; the preparation process is simple, convenient to purify, safe, simple, convenient and energy-saving, the product quality is stable, the reproducibility is good, the yield is high, and the method is suitable for industrial production.

The invention discloses a high-breathability fabric and a preparation method thereof, and relates to the field of fabrics. When the high-breathability fabric is prepared, cotton cellulose sequentially reacts with allyl succinic anhydride and 4 '-amino-2, 2': 6 ', 2'-terpyridyl to obtain modified cellulose; the preparation method comprises the following steps: sequentially reacting graphene oxide with thionyl chloride, 2, 4-diamino-6-vinyl-S-triazine and 2, 6-di-tert-butyl-4-bromomethylphenol, so as to obtain modified graphene oxide; uniformly mixing the modified cellulose, the modified graphene oxide, hydrogen-containing silicone oil, polyethylene glycol and silver nitrate, and spinning and weaving to obtain the high-breathability fabric. The high-breathability fabric prepared by the invention has excellent moisture absorption and breathability, lasting antibacterial property, mechanical property and photo-oxidative aging resistance.

The invention discloses a passivation layer, a perovskite solar cell comprising the passivation layer, and a preparation method and application of the passivation layer. Two N atoms on two pyridine rings in 2, 2-bipyridine can be coordinated with metal ions Pb < 2 + > at the same time to form a stable chelating structure, the passivation effect and the passivation stability can be synchronously improved, and the open-circuit voltage Voc, the short-circuit current Jsc, the fill factor FF, the photoelectric conversion efficiency PCE and other performance of the perovskite solar cell are improved.

The invention relates to a preparation method of a high-lithium-affinity vinylene covalent organic framework material serving as a lithium metal negative electrode interface protective layer. The method comprises the following steps: firstly, by utilizing a simple hydrothermal synthesis method, taking 1, 3, 5-trimethyl-2, 4, 6-triazine (TMT) and 2, 2-bipyridine-5, 5-diformaldehyde (BPY) as monomers, and carrying out Aldol condensation reaction to synthesize a covalent organic framework material connected by a vinylene bond, which is named as viCOF-bpy; the electrochemical performance of the material is verified by modifying the surface of a copper pole piece with the viCOF-bpy material and then assembling a battery. The lithium-loving group on the material skeleton can promote the migration of lithium ions, and the vinylidene has very strong chemical stability, so that the electrochemical performance of the lithium metal battery can be effectively improved.

The invention discloses a siloxane modified terpyridyl corrosion-resistant auxiliary agent and application thereof in preparation of an intrinsic metal corrosion-resistant epoxy resin coating, the structural formula of the siloxane modified terpyridyl corrosion-resistant auxiliary agent is # imgabs0, a terpyridyl structure is introduced, and the siloxane modified terpyridyl corrosion-resistant auxiliary agent has an efficient metal corrosion-resistant effect; the physical state of metal in the corrosion process can be changed by taking the strong coordination effect of terpyridyl as driving force, so that long-term corrosion prevention is realized; a terpyridyl structure is introduced into the epoxy resin, a rigid structure of a benzene ring and heterocyclic nitrogen atoms can form hydrogen bonds with side hydroxyl groups of the epoxy resin, the durability and corrosion resistance of the epoxy resin are greatly improved, and a siloxane structure on a main chain improves the flexibility of a molecular chain and improves the hydrophobicity of the epoxy resin.

4, 4 '-bipyridine (Bpy), 2, 5-thiophenedicarboxylic acid (Tdc), FeCl3. 6H2O, NiCl2. 6H2O, urea and tetrabutylammonium bromide are used as raw materials, a simple hydrothermal-calcination method is adopted to prepare the Fe2O3-coated Ni-MOF composite nanomaterial catalyst, X-ray diffraction (XRD), a scanning electron microscope (SEM) and a N2 adsorption and desorption technology are adopted to characterize a prepared sample, and the electro-catalytic oxygen evolution reaction (OER) activity of the Fe2O3-coated Ni-MOF composite nanomaterial catalyst is tested. Results show that compared with a single component, the activity of the composite nano-material catalyst is greatly improved, especially the composition-optimized Fe2O3-coated Ni-MOF-1 composite nano-material catalyst shows the highest catalytic activity, the composite nano-material catalyst catalyzes OER in 1M KOH, and the overpotential (eta 10) is only 330mV when the current density is 10mA / cm < 2 > and is close to the overpotential 291mV of a noble metal catalyst RuO2.

The invention relates to the technical field of chemical synthesis of dyes, and particularly discloses a 5, 5 '-disubstituted hydroxyl-3, 3'-dipyridyl derivative as well as a preparation method and application of the 5, 5 '-disubstituted hydroxyl-3, 3'-dipyridyl derivative. The structure of the 5, 5 '-disubstituted hydroxy-3, 3'-dipyridyl derivative is as shown in a formula (I) in the specification, the 5, 5 '-disubstituted hydroxy-3, 3'-dipyridyl derivative obtained by the preparation method has the advantages of high yield, stable structure, high temperature resistance and higher color development intensity, can be used as a dye to be applied to dyeing of fabrics made of different materials, and has the advantages of safe, simple and energy-saving preparation process, stable product quality and good reproducibility.

This application relates to the field of microbial fermentation technology, and specifically discloses an N-hydroxyamino-N'-acetylguanine blue, its fermentation method and application. The chemical name of the N-hydroxyamino-N'-acetylguanine blue is N-(5'-hydroxyamino-2,6,2',6'-tetraoxo-1,6,1',6'-tetrahydro-2H,2'H-[3,3'] bipyridylmethylene)-acetamide, and the molecular formula is C 12 H 10 O6N4; compared with N-acetylguanine blue, the absorption of N-hydroxyamino-N'-acetylguanine blue is deeper in color at UV611, and at the same time, the formation of hydrogen bonds with amino groups on the fiber can enhance the dyeing property of the dye on the fiber and improve the wash fastness.

The invention discloses a metal organic framework material as well as a preparation method and application thereof, and belongs to the technical field of chemical separation. The preparation method of the metal organic framework material provided by the invention comprises the following steps: taking water and methanol as solvents, taking 4, 4 '-dipyridyl and malic acid as organic ligands, adding a zinc source, reacting, and in the reaction process, connecting oxygen atoms on the malic acid with zinc ion bonds on the zinc source to form a 2D layered network structure, the two-dimensional layered network structures are bridged through 4, 4 '-dipyridyl to form a 3D rigid network framework, and after the reaction is finished, the metal organic framework material is prepared. The metal organic framework prepared by the invention has a superstrong capture effect and a large storage space on acetylene molecules, and also has an excellent separation effect on an acetylene and carbon dioxide mixed system, so that the aim of purifying acetylene in the acetylene and carbon dioxide mixture at high purity and high yield is achieved.

The invention discloses a cerium ion coordinated terpyridyl anticorrosive flame-retardant difunctional filler as well as a preparation method and application thereof. The structural formula of the cerium ion coordinated terpyridyl anticorrosive flame-retardant difunctional filler is # imgabs0. The corrosion-resistant flame-retardant EP material has corrosion-resistant and flame-retardant dual-functional characteristics, and the toughness of EP is improved by using a siloxane skeleton structure as a connecting agent; dOPO contains phosphorus, a phosphorus compound can be decomposed at high temperature to generate phosphorus oxides, the oxides can form a protective layer in flame, interaction between oxygen and combustible materials is reduced, and combustion reaction is slowed down or inhibited; pyridine can adsorb metal ions in a corrosive environment, so that an anti-corrosion effect is achieved; meanwhile, N atoms on a pyridine ring can generate N2 in the combustion process, so that the concentration of oxygen in the gas can be reduced, and an important role is played in the intumescent flame retardant process; ce < 3 + > and pyridine are coordinated to form a coordination compound, a compact adsorption film is formed on the surface of a matrix, and corrosion protection is provided; meanwhile, various micromolecular monomers can be combined to form a long-chain chelate, so that the performance of the filler is further improved.

The present invention discloses a cobalt-based armor nanozyme and its preparation method and application. The method comprises uniformly mixing a cobalt salt solution, a 2,2'-bipyridine solution, and a g-C3N4 dispersion, performing sufficient reaction followed by pretreatment to obtain a precursor, and grinding and calcining the precursor to obtain the cobalt-based armor nanozyme. The cobalt-based armor nanozyme prepared by the present invention has high catalytic activity and the stability of carbonaceous materials. While ensuring efficient catalysis, it greatly reduces secondary pollution caused by cobalt metal leaching. The cobalt-based armor nanozyme can be used to remove organic pollutants from solid pollutants such as soil and water, and can also be used for targeted enrichment of numerous organic pollutants in contaminated wastewater, thereby improving removal efficiency.

The invention relates to a composite resin material for 3D printing and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 60-90 parts of polylactic acid, 5-15 parts of a toughening agent, 5-15 parts of a flame retardant, 5-10 parts of modified carbon nanotubes, 0.3-1 part of an anti-hydrolysis agent and 0.3-0.5 part of a lubricant. The flame retardant is added, a phosphate structure, a benzene ring and a hindered phenol structure are introduced into 5, 5 '-dibromo-[2, 2'-bipyridyl]-3, 3 '-diamine, and efficient flame retardance is achieved and the anti-aging performance of the composite resin material is enhanced through multiple synergistic effects of hindered phenol-phosphorus heterocycle-bipyridyl. The modified carbon nanotube is added as a reinforcing agent, so that the mechanical property of the composite resin material is remarkably improved, and the composite resin material is endowed with antibacterial property.

The invention discloses a method for removing pollutants in sewage, and belongs to the technical field of water treatment. Comprising the following steps: adding 2, 2-dipyridyl-Fe (II) and permanganate into water containing organic pollutants, stirring to react, and removing unreacted 2, 2-dipyridyl-Fe (II) and permanganate; the addition amount of the 2, 2-dipyridyl-Fe (II) is 5 to 50 [mu] M; the adding amount of the permanganate is 50 to 300 [mu] M. According to the method, 2, 2-dipyridyl (BPY) is used for complexing Fe (II) to activate permanganate. BPY and Fe (II) can form a stable complex, so that free-state Fe (II) is provided for reaction, permanganate is activated to generate high-activity manganese species and strong-oxidizing free radicals, and pollutants are effectively degraded. Compared with single permanganate oxidation, the removal rate of pollutants is improved by 16%, and the removal rate reaches 100% within 10 min.

The invention belongs to the technical field of metal organic framework materials, and particularly relates to a copper-based mixed ligand metal organic framework material and a preparation method and application thereof. According to the copper-based mixed ligand metal organic framework material provided by the invention, Cu < 2 + > is used as coordination metal, 2, 2 '-bipyridine-5, 5'-dicarboxylic acid and 1, 2, 4-triazole are used as organic ligands, and the copper-based mixed ligand metal organic framework material is of a three-dimensional network structure with a P21 / c space group. The structure of the copper-based mixed ligand metal organic framework material has coordinated water molecules facing the inside of a pore channel, and a large number of open metal sites can be exposed after activation, so that the material has a relatively high specific surface area, and gas molecules such as carbon dioxide and the like can be polarized; the interaction between the material and gases such as carbon dioxide is improved, so that the adsorption capacity and separation selectivity of the gases such as carbon dioxide are improved.

The invention discloses an organic rare earth luminescent complex scintillator as well as preparation and application thereof. The molecular structural formula of the complex is L13ML2, M is Tb, Eu or Er metal ions, and the valence state is + 3; l1 is a tetraphenyl diphosphine imide anion ligand (tpip) or a substituted tpip ligand; l2 is unsubstituted or substituted 2, 2 '-bipyridyl, 1, 10-phenanthroline and a non-ionic chelating group containing a polyheterocycle / fused heterocycle. The organic rare earth luminescent complex scintillator can effectively convert high-energy X-rays into narrow-band visible light and near-infrared light, and is suitable for being applied to the fields of high-energy ray detection and high-resolution imaging.

The invention discloses an antistatic fabric and a preparation method thereof, and relates to the technical field of fabrics. When the antistatic fabric is prepared, firstly, polyamide is grafted with 2-chloro-6-vinylpyridine under the action of an initiator, then the polyamide reacts with 2-amino-4-methoxypyrimidine-5-boronic acid pinacol ester, methoxyl is removed through boron tribromide, then the polyamide reacts with 2-diphenylphosphinobenzaldehyde, and modified polyamide is obtained; secondly, grafting tea polyphenol on the multi-walled carbon nanotube which is firstly treated by nitric acid and then treated by thionyl chloride, and then reacting with 4-[2, 2 ': 6', 2 ''-terpyridyl]-4 '-yl-thiophenol to obtain a modified multi-walled carbon nanotube; and finally, carrying out melt spinning on the modified polyamide, the modified multi-walled carbon nanotubes and the antibacterial agent to obtain antistatic fibers, and weaving the antistatic fibers to obtain the antistatic fabric. The antistatic fabric prepared by the invention has excellent flame retardance, electrical conductivity, ultraviolet resistance and oxidation resistance.

The invention discloses a method for preparing a single-walled carbon nanotube, and belongs to the technical field of single-walled carbon nanotubes. When the single-walled carbon nanotube is prepared, the single-walled carbon nanotube is grown by using a chemical vapor deposition method; then, the grown single-walled carbon nanotubes are subjected to acid pickling, then, the carbon tubes are sorted and purified by adopting a polymer dispersant, and finally, the polymer dispersant is removed to obtain the single-walled carbon nanotubes; the polymer dispersant disclosed by the invention is obtained by reacting an aldehyde-terminated fluorenyl surfactant with diamino dipyridyl; wherein the aldehyde-terminated fluorenyl surfactant is obtained by polymerizing 9, 9-di-n-octylfluorene-2, 7-diboric acid di-pinacol ester and quaternary ammonium salt containing 2, 7-dibromofluorene, and then reacting with 5-formyl-2-thiopheneboronic acid pinacol ester for end capping; the prepared single-walled carbon nanotube is relatively high in purity and relatively high in finished product conversion rate.

The invention discloses a viologen compound three-component doped electrochromic material as well as a preparation method and application thereof. The preparation method comprises the following steps: respectively dissolving an ethyl viologen compound, a cyano viologen compound and a methoxyl viologen compound in a DMSO solvent, and mixing according to a molar ratio of (1-6): (1-3): (1-6) to obtain a mixed solution; wherein the ethyl viologen compound is 1, 1 '-diethyl-3, 3'-difluoro-4, 4 '-bipyridine-1, 1'-dionium, and the ethyl viologen compound is one or more of ethyl viologen, ethyl viologen, ethyl viologen and ethyl viologen. The cyano viologen compound is mono (1, 1 '-bis (4-cyanophenyl)-[4, 4'-bipyridyl]-1, 1 '-dionium) monochloride; the methoxy viologen compound is mono (1, 1 '-bis (4-methoxyphenyl)-[4, 4'-bipyridyl]-1, 1 '-dionium) chloride; adding a polymerization catalyst into the mixed solution, stirring and reacting for 1.5 hours to form a reaction solution with a polymer network structure at the reaction temperature of 50-70 DEG C; introducing the reaction liquid into a film forming mold, uniformly coating a substrate with the reaction liquid by adopting a blade coating method, and carrying out heating curing and cross-linking strengthening to obtain the viologen compound three-component doped electrochromic material.

The invention discloses a preparation method and application of a high-activity-site polyion liquid catalyst, and belongs to the field of green catalytic synthesis. The preparation method comprises the following steps: introducing imidazole on an amine-functionalized ionic liquid through an aldehyde-amine condensation method, introducing dipyridine through free radical polymerization, and finally introducing metal zinc through a method of metallization after synthesis to synthesize the polyionic liquid catalyst with Lewis acid-base sites, nucleophilic reagent sites, hydrogen bond donors and carbon dioxide adsorption sites. Compared with the prior art, the catalyst has multiple active sites, the synthesis method is simple, the product is easy to separate, and the catalyst has excellent performance in catalysis of cycloaddition reaction of carbon dioxide and epoxypropane.

The invention relates to a crystal form of a compound (S)-1-((2 ', 6-bis (difluoromethyl)-[2, 4'-bipyridyl]-5-yl) oxy)-2, 4-dimethyl pent-4-ene-2-amine as shown in a formula (I) and a salt thereof, a preparation method of the crystal form, and application of the crystal form in a pharmaceutical composition and medicine of the compound (S)-1-((2 ', 6-bis (difluoromethyl)-[2, 4'-bipyridyl]-5-yl) oxy)-2, 4-dimethyl pent-4-ene-2-amine and the salt thereof. # imgabs0 #

The invention discloses a multi-metal active site covalent organic framework material, a preparation method thereof and application of the multi-metal active site covalent organic framework material in activating PMS to degrade pollutants, the multi-metal active site covalent organic framework material comprises metalloporphyrin and bipyridine groups, when porphyrin loads metal, metal atoms are connected through coordination of two nitrogen sources of bipyridine, the metal atoms are connected through coordination of two nitrogen sources of bipyridine, and therefore the multi-metal active site covalent organic framework material is obtained. Multi-metal active sites are formed; the metal active sites are increased, and the distance between metals is adjusted, so that the framework material shows excellent catalytic activity. The covalent organic framework material is prepared through a solvothermal reaction, the covalent organic framework material continues to react with a metal precursor to load metal, the preparation method is simple, a complex reaction process and harsh reaction conditions are not needed, and large-scale preparation can be achieved.

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).

The invention belongs to the technical field of sodium pre-treatment of sodium-ion battery positive electrode materials, and discloses a sodium-ion battery positive electrode chemical sodium pre-treatment reagent and method and a sodium-ion battery. The method comprises the following steps: preparing a chemical pre-sodium-modified solution from ethylene glycol diethyl ether, 2, 2 '-dipyridyl and metal sodium, placing the pre-sodium-modified solution in a drying room environment, soaking a plurality of positive plates in the pre-sodium-modified solution, taking out the positive plates after a certain time, washing and drying the positive plates, and thus obtaining the pre-sodium-modified sodium ion battery positive electrode. The chemical pre-sodium modification reagent used in the invention has the characteristics of suitable oxidation-reduction potential, good chemical stability and the like, and can be applied to commercial sodium ion batteries.

The invention discloses a cobalt transition metal coordination polymer as well as a preparation method and application thereof, and belongs to the technical field of metal organic complex material photocatalysts, the chemical formula of the cobalt transition metal coordination polymer is [Co (L) (2, 2-biby). 2H2O] n, L is 2-(3-carboxyl phenyl)-6-carboxyl benzimidazole, and n is 1-3. 2, 2, 2-biby is 2, 2 '-dipyridyl; n represents the degree of polymerization and is a positive integer; the cobalt transition metal coordination polymer belongs to a P212121 space group of an orthorhombic crystal system. According to the cobalt transition metal coordination polymer and the preparation method and application thereof, the cobalt transition metal coordination polymer can serve as a photocatalyst, has good photocatalytic performance and can serve as a potential photocatalyst to catalyze and degrade organic pollutants in water.