78results about How to "Synthetic raw materials are cheap and easy to obtain" patented technology

The invention provides an amido-containing ionic liquid used for absorbing acidic gases and a preparation method and application thereof and in particular relates to a method for absorbing acidic gases of CO2, H2S, SO2 and the like by using an amido-containing ionic liquid. The amido-containing ionic liquid comprises one or more of primary amine, secondary amine and tertiary amine, wherein positive ions of the ionic liquid are derived from organic polyamines, negative ions of the ionic liquid are derived from inorganic acid or organic acid, and the ionic liquid is prepared by mixing the organic polyamines with the inorganic acid or organic acid and then carrying out neutralization reaction through acid and alkali. The ionic liquid has the advantages of low cost, simple preparation method,strong absorbing capability and short balance time, can be used for the enriching of acidic gases, the deacidification refining of acid-containing gases of natural gas, refinery gas, methane, coal gas, synthesis gas, coke-oven gas, pyrolysis gas, smoke, motor vehicle tail gas and the like and the purification of gases under a proper space and an operating environment; meanwhile, the ionic liquid absorbing the acidic gases can release the acidic gases through pressure reduction and temperature raise, thus the absorbing capability of the ionic liquid is restored and the multiple absorption property of the ionic liquid is better.

The invention discloses an MOFs (metal-organic frameworks)-cross-linked polyethylene glycol diacrylate mixed substrate membrane, a preparation and an application. PEGDA (polyethylene glycol diacrylate) is selected as substrate membrane materials, MOFs are selected as fillers, and the MOFs-cross-linked polyethylene glycol diacrylate mixed substrate membrane is prepared by ultraviolet crosslinking and curing under induction of photo-initiators. The mixed substrate membrane has remarkable performances (PCO2>160Barrer, alpha CO2 / N2>70, alpha CO2 / CH4>40) for separating mixed gas of CO2 / N2 and CO2 / CH4. Compared with a pure cross-linked polyethylene glycol diacrylate membrane, the MOFs-cross-linked polyethylene glycol diacrylate mixed substrate membrane has higher CO2 gas permeability and separation selectivity, and can be applied to purification of flue gas and natural gas.

The invention mainly relates to the field of lithium battery materials, and provides a method for synthesizing lithium sulfide by taking a lithiation solution and elemental sulfur as raw materials through direct reaction, which comprises the following steps: preparing the lithiation solution, an organic ether solution containing a metal lithium-aromatic compound, a lithium iodide solution and an n-butyl lithium solution; adding elemental sulfur into the lithiation solution for mixing; and sequentially carrying out a room-temperature reaction, separation and precipitation, drying and heat treatment on the mixed solution to obtain the lithium sulfide. The synthesis method of lithium sulfide has the advantages of cheap and easily available raw materials, simple process, no harmful gas generation, and mild and controllable synthesis process.

The invention relates to a hyperbranched polythioether preparation method. According to the preparation method disclosed by the invention, a bi-functionality asymmetric alkene compound and tri-functionality sulfur alcohol are utilized as raw materials, thiol-ene is utilized to perform unequal-reactivity addition reaction, and hyperbranched polythioether is synthesized by a one-pot method. The preparation method disclosed by the invention has the advantages that the raw materials are easy to obtain, and the steps are simple; a terminal group of the prepared hyperbranched polythioether is sulfydryl; functional modification can be further performed; thus, the hyperbranched polythioether with specific performance can be prepared.

The invention relates to an acrylics / SiO2 nano-composite tanning agent. The nano-composite tanning agent appears to be light yellow or yellow semitransparent ropy liquid, the mass concentration is 20 to 35%, the viscosity is 500 to 1000MPa.s, the pH value is 5 to 8, and the storage stable period is over 12 months. With only 2% (relative to the leather weight) chromium powder, the nano-composite tanning agent can thicken the leather by 124.5%, the shrinkage temperature reaches to 95 DEG C.; compared with a chrome tanned leather, a leather tanned by the nano-composite tanning agent has a tensile strength, peeling strength and elongation at break improved by 51.8%, 8.2% and 13.3% respectively, has no obvious stratification or sedimentation during over 12 months of storage period. Water is used as solvent when prepared, which is low-cost and pollution-free; the preparing technology is simple, the reaction is mild, the polymerization process is easy to control, so that the nano-composite tanning agent is easy to realize industrial production, the synthesized material is inexpensive and easy to obtain as well.

The invention discloses an intermediate compound, and a synthetic method of prothioconazole. The method comprises the following steps: carrying out a substation reaction on 5,5'-dithio-bis(1,2,4-triazole) and 2-(1-chlorocyclopropyl)-3-chloro-1-(2-chlorophenyl)-2-propanol to obtain the key intermediate compound; and reducing the key intermediate compound to obtain the target product prothioconazole. The synthetic method has the advantages of high conversion rate, high selectivity, cheap and easily available synthesis raw materials, reduction of the production cost, mild and easily controlled technologic reaction conditions, simplicity in operation, easiness in product purification, obtaining of the product through direct re-crystallization, simple and accurate control method of intermediates in all steps, high product yield, good atom economy, avoiding of tedious post-treatment, large competition advantages and industrial production utilization values, avoiding of strong alkalis and other raw materials, extremely low three wastes, and according with the green chemistry idea.

The invention provides a method for synthesizing high-purity carbon nanospheres or carbon microspheres at low temperatures, which takes calcium carbide and oxalic acid dihydrate as raw materials, and the molar ratio of calcium carbide and oxalic acid dihydrate is 2: 1 to 6: 1. The raw materials are heated up to 65 to 250 DEG C in a closed pressure-withstanding reactor for 30 to 120 minutes, and then are cooled down to ambient temperature after the reaction is completed, so as to obtain carbon nanospheres and carbon microsphere, the diameter of which is from scores of nanometer to hundreds of nanometer. The carbon nanospheres and carbon microspheres obtained by the method of the invention have the advantages of high purity, high carbon content and uniform size.

The invention relates to a method for preparing a sulphuric acid ester ion liquid. The method takes simple amine and sulfuric acid ester as raw materials which are subjected to alkylation in order to synthesize the sulphuric acid ester ion liquid with high selectivity and high yield. The method has the advantages that the raw materials are cheap and available easily, the product has low cost, the synthesizing process is simple, the atom economy is high, the environment protection requirement is met and three wastes are not discharged basically, etc. The sulphuric acid ester ion liquid has the characteristics of the general ion liquid of low steam pressure, good thermal stability, uneasy volatilization, etc. and has industrial application prospect.

The invention discloses a one-dimensional In<2>O<3> / C fiber composite material, and a preparation method and an application thereof. The preparation method comprises the following steps of (1) uniformly mixing an indium salt and polyacrylonitrile (PAN) in a solvent to obtain a spinning precursor mixed solution; (2) performing electrostatic spinning on the spinning precursor mixed solution at a high voltage to obtain a fiber precursor; (3) calcining the obtained fiber precursor in a nitrogen atmosphere at a temperature of 500-650 DEG C for 3-5h; and (4) performing calcining in air atmosphere at a temperature of 100-120 DEG C for 3-5h to obtain the one-dimensional In<2>O<3> / C fiber composite material. The prepared one-dimensional In<2>O<3> / C fiber composite material is uniform in structure, tiny in indium oxide particle dimensions and uniformly distributed inside and outside carbon fibers; and when the fiber composite material is used for a negative electrode of a lithium ion battery, capacity which is as high as 350mAh g<-1> after 100 circles at 100mA g<-1> can be realized.

The invention discloses a micropore terbium-based metal-organic framework material and a preparation method and application thereof. The micropore terbium-based metal-organic framework material has the chemical formula of [Tb(L)(H2O)](H2O)3(DMF)0.75(NMP)0.75, wherein L represents 2,4,6-tris[1-(3-carboxyl phenoxy)]methyl-1,3,5-trimethylbenzene anionic ligand, DMF represents N,N'-dimethylformamide, NMP represents 1-methyl-2-pyrrolidinone, the condensed structural formula of L is as shown in the description, the metal-organic framework material is crystallized to Monoclinic, the space group is C2 / c, the cell parameters are that a=30.773(2), b=9.3088(4) angstroms, c=30.411(2) angstroms, beta=111.272(8) degrees, V=8118.2(9) angstroms<3>, and the main infrared absorption peaks of the micropore terbium-based metal-organic framework material are 3,394 m, 1,656 s, 1,551 s, 1,442 s, 1,408 s, 1,238 m, 1,134 w, 1,010 m, 827 w, 772 m and 685 w. The micropore terbium-based metal-organic framework material is obvious in change of Fe<3+> ion fluorescence intensity, detection on Fe<3+> ions can be effectively conducted, the preparation technology is simple, the raw materials are low in price and easy to obtain, the condition is mild, and the material can be prepared on a large scale easily.

The invention relates to a synthesizing method of cross-linked zinc polyacrylic acid and a representative using method of the cross-linked zinc polyacrylic acid, in particular to a synthesizing method of reticular cross-linked zinc polyacrylic acid and a using method of the cross-linked zinc polyacrylic acid in batteries. According to the synthesizing method, acrylic acid serves as a monomer, zinc oxide serves as a neutralizing agent, and synthesizing of the reticular cross-linked zinc polyacrylic acid is achieved in an aqueous system under the action of a cross-linking agent and a one-component initiator. A synthesized product is used for replacing an anode active material of a nickel-zinc secondary battery, in this way, the representative using method of the cross-linked zinc polyacrylic acid is achieved, and the practicability of the cross-linked zinc polyacrylic acid in improving low-temperature power performance and self-discharge control of a nickel-zinc rechargeable battery and the like is achieved. A reference is provided for application of the cross-linked zinc polyacrylic acid in silver-zinc batteries, MnO2-zinc batteries, Edison batteries and the like. The polymerization method has the advantages of being short in process, easy to operate, high in safety, low in product cost and the like, and a basis is laid for application of the synthesized product in the fields such as non-toxic preservation of potatoes, efficient utilization of feminine sanitary towels, green mildew preventives for leather, micro-element fertilizers and accelerants.

The invention discloses an alcohol amine type ion liquor-containing compound absorbent capable of capturing carbon dioxide. The alcohol amine type ion liquor-containing compound absorbent is characterized by comprising an absorption component, a corrosion inhibitor, an antioxidant and solvent, wherein the absorption component consists of N-Methyldiethanolamine and ionic liquid (TETAH)<+>(BF4)<->. The invention provides a compound absorbent which is high-efficiency, good in stability, easy to desorb, and low in regeneration energy consumption and can capture carbon dioxide. Organic amine and ionic liquid are mixed, the organic alcamines has the characteristics of being high in absorption rate and large in absorption capacity and the ionic liquid has the properties of low steam pressure and good stability and the like, thus supplementing each other so as to improve the processing capacity of carbon dioxide.

The invention discloses a multifunctional zinc-based organic-inorganic hybrid material, a preparation method and application thereof. The multifunctional zinc-based organic-inorganic hybrid material has the following chemical formula: [Zn2(bpydb)(atz)2](DMA)8, wherein the bpydb is a bipyridine dicarboxylic acid anion ligand, the atz is 3-amino-1, 2, 4-triazole anion, and the DMA is N, N-dimethylacetamide. The multifunctional zinc-based organic-inorganic hybrid material crystallizes in a trigonal system (trigonal), the space group is P3121, and the cell parameters are shown as the specification: a=b=21.027(2) angstrom, c=20.5274(10) angstrom, and V=7859.6 angstrom<3>. The multifunctional zinc-based organic-inorganic hybrid material provided by the invention has high BET specific surface area and porosity, and has good high-temperature resistance. The preparation process is simple, the raw materials are cheap and easily available, and the reaction conditions are mild, thus being convenient for mass preparation. The multifunctional zinc-based organic-inorganic hybrid material provided by the invention has good application value in the aspects of C2H2 storage, selective separation and picric acid fluorescence recognition, and can be widely applied to industrial gas storage and recognition of picric acid pollutants in a liquid phase.

The invention relates to the technical field of metal pickling corrosion and prevention, in particular to a novel water soluble metal pickling corrosion inhibitor and application thereof. The corrosion inhibitor comprises water soluble O,O'-bis(substituent)phosphorodithioic ammonium ethanol compounds, namely, O,O'-bis(phenyl)phosphorodithioic-N-ammonium ethanol, O,O'-bis(phenyl)phosphorodithioic-N,N-diethanol amine, O,O'-bis(phenyl)phosphorodithioic-N,N,N-triethanolamine, O,O'-bis(4-tolyl)phosphorodithioic-N-ammonium ethanol, O,O'-bis(4-tolyl)phosphorodithioic-N-N-diethanol amine and the like. The corrosion inhibitor provided by the invention comprises the water soluble O,O'-bis(substituent)phosphorodithioic ammonium ethanol compounds; the water soluble O,O'-bis(substituent)phosphorodithioic ammonium ethanol compounds form an ionic type organic corrosion inhibitor which contains one or more hydrophilic hydroxyl groups; compared with other corrosion inhibitors, the novel water soluble metal pickling corrosion inhibitor is high in water solubility, and does not have the problem of precipitation in an acidic solution.

The invention discloses a photo-functional composite, a preparation method thereof and serial photocatalytic application. The photo-functional composite has a chemical formula of [Cu2(NTB)2(W6O19)] DMF, wherein NTB is 4-(4H-1,2,4-triazole-4-yl)-N,N-bis[4-(4H-1,2,4-triazole-4-yl)phenyl]-aniline; NTB has a simple structural formula shown in the description. The photo-functional composite crystallizes as monoclinic system, having a spatial group of P2(1) / c and lattice parameters shown in description. The photo-functional composite has the serial catalytic function to photocatalytically decomposewater to produce oxygen and selectively oxidize thioether to prepare sulfoxide; the preparation method is simple; the yield is high.

The invention relates to a nano probe having an apoptosis targeting function as well as a preparation method and an application of the nano probe. The MNPs DSPE PEG DPA Zn nano probe is composed of Fe@Fe3O4 nanoparticles, liposomes DSPE PEG coupled on the surface layers of the Fe@Fe3O4 nanoparticles and DPA Zn modified liposomes, wherein the prepared nano probe MNPs DSPE PEG DPA Zn is applicable to tumor apoptosis MRI (magnetic resonance imaging). In comparison with the prior art, the nano probe provided by the invention has the advantages that annexin or related polypeptides are replaced by cheap DPA-Zn, the DPA-Zn is grated to the surfaces of the nanoparticles by virtue of a simple and convenient non-catalysis Click reaction, tum apoptosis is detected by virtue of a non-invasive MRI means, and the like.

The invention discloses a preparation method of a meso-porous material loaded with metal tin through chemical vapor deposition, and an application of the meso-porous material in the Baeyer-Villiger oxidation reaction of cyclohexanone. A tin-containing compound and a meso-porous material undergo a gas-solid reaction in oxygen-free environment to make the metal element tin be loaded on the meso-porous material, and when the meso-porous material loaded with metal tin is used to catalyze the Baeyer-Villiger oxidation reaction of cyclohexanone, the highest conversion rate is greater than 50%, and the highest cyclohexanone selectivity can exceed 95%. Compared with other catalysts containing metal active components, the catalyst disclosed in the invention has the advantages of simple preparation process and high load capacity. When the meso-porous material loaded with metal tin is used in the Baeyer-Villiger oxidation reaction of cyclohexanone with hydrogen peroxide or alkyl peroxide as an oxygen source, reaction conditions are mild, the catalyst is easy to recycle, and use of organic peroxoic acid is avoided, thereby the potential safety hazard and the environment pollution are eliminated.

The invention discloses a preparing method of a nanotube-nickel-nickel cobalt silicate catalyst. The preparing method includes the following steps: (1) dispersing a carbon nanotube in a surfactant, adjusting the pH to 10-14, and adding a silicon source to obtain a carbon nanotube-SiO2 coaxial nuclear shell nanotube; (2) adding nickel precursors and cobalt precursors into the carbon nanotube-SiO2 coaxial nuclear shell nanotube, adjusting the pH to 8-13, and preparing a carbon nanotube-nickel cobalt silicate coaxial nuclear shell nanotube at the temperature of 50-220oC; (3) reducing the carbon nanotube-nickel cobalt silicate coaxial nuclear shell nanotube at the temperature of 300-800oC in a 5% nitrogen atmosphere to obtain the carbon nanotube-nickel-nickel cobalt silicate coaxial nuclear shell catalyst. The obtained catalyst has the advantages of high specific surface area, high catalytic activity in oxygen evolution reaction, high catalytic activity in oxygen reduction, high electric conductivity, low cost and the like; when the catalyst serves as an electrode material for lithium oxygen batteries, by-products such as lithium carbonate can be inhibited, and both the battery discharging capacity and the cycle index are high.

The invention provides 640nm excited near-infrared fluorescent dye and a preparation method thereof. The structure of the dye is modified by nitrogen ends of a five-membered ring and a six-membered ring with different rigidities, the dye is specifically shown as a formula (1), absorption and red shift of a fluorescence spectrum are realized, and the maximum red shift is 45 nm. Meanwhile, the dye provided by the invention is high in light stability and high in quantum yield (reaching 0.3 or above in methanol), the spiral ring opening and closing forms of a bottom ring of the dye respectively correspond to colourlessness and colorless, light regulation and control can be carried out, and the dye is used for a biological fluorescent probe and super-resolution imaging of the biological fluorescent probe.

The invention discloses a spirooxazine photochromic compound changing from colorless to blue as well as a preparation method and application of the spirooxazine photochromic compound, and belongs to the technical field of organic functional materials. The objective of the invention is to develop and meet aesthetic needs of customers. The invention discloses a photochromic compound with high outdoor stability and a formula of a coating thereof. The spirooxazine photochromic compound changing from colorless to blue prepared by the invention has the advantages of high photoresponse speed, high fading speed, stable performance in a closed-loop state in outdoor use, low-price and easily available synthetic raw materials and high operability of a synthetic process, and meets the market aestheticrequirements.

The invention discloses a synthesis method of a novel thiazole ring derivative, belonging to the technical field of organic synthesis. The synthesis method of the novel thiazole ring derivative comprises the steps of adding a styrene compound, potassium persulfate and potassium bromide into water in sequence, then reacting for 6-12 hours at 60 DEG C, adding a thiourea compound, and continuing to react for 1-2 hours at 60 DEG C, so as to prepare the target product thiazole ring derivative. The synthesis method has a high yield, is mild in reaction, is low-cost, and is environmentally friendly.

The invention discloses a vanadium diselenide doped nickel cobalt selenide yolk shell structure micron cuboid counter electrode catalyst and a preparation method thereof. The preparation method comprises the following steps of adding a mixed solution of cobalt acetate and nickel acetate into an ethanol solvent in which polyvinylpyrrolidone is dissolved, and carrying out a heating reaction under a water bath condition to obtain a Ni-Co prism precursor precipitate; then carrying out water bath reaction on the precursor and ammonium metavanadate to obtain an intermediate NiCo-VOx so as to realize the doping of vanadium heteroatoms; and finally, further selenizing the intermediate at high temperature to obtain the VSe2-NiCoSex catalyst with a yolk-shell structure. The method of the present invention is mild and controllable in operation condition, short in reaction time and low in cost, and the prepared catalyst provides more active sites due to the synergistic effect of multiple different metal ions and the doping of vanadium heteroatoms. Meanwhile, the prepared catalyst has high specific surface area, porosity and good electro-catalytic performance, is used for dye-sensitized solar cells, and has photoelectric conversion efficiency of 9.50%.

The invention discloses a method for synthesizing marine polyhydroxyl sterol (25R)-5alpha-cholest-3beta, 5alpha, 6beta, 26-tetrol. Diosgenine is used as a raw material, and (25R)-5alpha-cholest-3beta, 5alpha, 6beta, and 26-tetrol are prepared by the steps of reduction ring-opening carried out by zinc amalgam, 3, 26-bit hydroxy protection carried out by tert-butyl dimethylchlorosilane, 16-bit hydroxyl esterification carried out by methylsufonyl chloride and sulfuryl, 16-bit methyl sulphonic acid ester reduction carried out by lithium aluminum hydride, 5-6-bit double linkage oxidation carried out by m-chloroperoxybenzoic acid, and ring opening and deprotection reaction under acid condition. The synthesizing method has the advantages of low-cost and easily obtained raw materials, moderate reaction condition, favorable selectivity and high yield, and the target compound has the potential antineoplastic and antiviral activity.

The invention discloses a self-repairing water-based coating based on PU / PUF micro-capsules and PCL micro-capsules and a preparation method thereof. PU / PUF micro-capsules and PCL micro-capsules are added into a water-based coating and stirred to be uniform to obtain the self-repairing water-based coating, wherein the coating is prepared from, by mass, 12-20% of PU / PUF micro-capsules, 0.6-3.6% of PCL micro-capsules and the balance water-based coating. After coating film formation, scratching treatment is performed on the surface of the coating, under the normal temperature condition, and the scratches of the coating with the micro capsules can achieve the self-repairing rate being 80% or above within 24 h. The self-repairing water-based coating is simple in self-repairing condition, synthesis raw materials are cheap and easy to obtain, and industrial production can be achieved.

The invention relates to a preparation method of a simvastatin side chain acyl donor, which comprises the following steps: (1) in a nitrogen protective atmosphere, reacting anhydrous ethanol and 3-mercaptopropionic acid in the presence of hydrogen ions at 60-90 DEG C for 10-16 hours to obtain ethyl 3-mercaptopropionate; and (2) in the presence of an organic solvent, reacting the ethyl 3-mercaptopropionate with 2,2-dimethylbutyryl chloride to generate the simvastatin side chain acyl donor ethyl 2,2-dimethylbutyric acid-3-mercaptopropionate. The raw materials for synthesizing the ethyl 2,2-dimethylbutyric acid-3-mercaptopropionate are cheap and accessible; the synthesis method is simple and easy to implement; the acyl donor has high stability and can not be easily hydrolyzed in the simvastatin synthesis process; and the 3-mercaptopropionate in the raw materials can be recycled to further lower the cost and avoid the problem of degradation of the simvastatin raw material due to the hydrolysate 3-mercaptopropionic acid, so that the simvastatin product quality is more stable.

The invention provides a novel dithieno silicon heterocyclic pentadiene organic solar cell acceptor material, and a preparation method and applications thereof. The novel dithieno silicon heterocyclicpentadiene organic solar cell acceptor material is a linear-type non-fullerene organic solar cell acceptor material with an A-D-A structure, and the structure general formula is disclosed in the invention, wherein m is used for representing a natural number selected from 2 or 3; R1 and R2 are used for representing alkyl straight chains or straight chains with a carbon atom number ranging from 1 to 20; and B1 and B2 are used for representing electron withdrawing terminals. The novel dithieno silicon heterocyclic pentadiene organic solar cell acceptor material is capable of solving problems inthe prior art that conventional non-fullerene small molecular acceptor material is simple in molecular structure, and low in molecular weight; the preparation method is simple; the synthesis raw materials are cheap and easily available; and it is beneficial for early commercialization applications of organic solar cells.

The invention discloses an organic solar cell acceptor material using diindeno bithiophene as a core, wherein diindenothieno[2,3-b]thiophene hexacycle is used as a central electron donating unit, anda pi electron connecting unit and a terminal electron drawing unit are introduced to form an organic acceptor material with an A-Q-D-Q-A type structure, and the structural drawing is defined in the specification. The preparation method comprises: using a strong electron donating group dithiophene as a core, introducing a benzene ring and an aromatic hydrocarbon side chain through a coupling reaction, closing the ring in an acidic environment, introducing a bridge unit with an aromatic structure, and finally adding a terminal group electron withdrawing group. According to the invention, the molecule can be used as an organic solar cell active layer acceptor material, is matched with a polymer donor energy band gap, has strong light absorption in a visible-near infrared region, is complementary with light absorption of a donor material, meets the requirement of improvement of the efficiency of organic solar cell devices, and can be used for constructing ternary organic solar cells.

The invention discloses a preparation method of a flexible strip-shaped lithium-carbon dioxide battery positive electrode material and a construction scheme of a battery. The interior of a device is of a laminated structure; the structures of the device sequentially comprise a red copper strip, a metal lithium strip, a glass fiber diaphragm, an electrolyte, a flexible medium loaded with an active substance MoN and a flexible stainless steel mesh from a negative electrode; and the outer part of the device is integrally wrapped and packaged by a strip-shaped heat shrink tube with a positive electrode hole. According to the preparation method, the prepared flexible strip-shaped lithium-carbon dioxide battery with low charging voltage can obviously reduce the charging voltage of the device to about 3.3 V; the synthesis raw material is cheap and easy to obtain, the synthesis process is simple and energy-saving; the working electrode is simple to prepare; the device assembly process is simple, convenient and rapid; and the flexible strip-shaped lithium-carbon dioxide battery is suitable for batch production and has a wide application prospect.

The invention relates to a synthesis method of a nano MFI / MOR eutectic molecular sieve and a nano Ti-MFI / MOR eutectic molecular sieve. The synthesis method of the nano MFI / MOR eutectic molecular sieve comprises the following steps: (1) mixing a silicon source, a template agent and water, aging and carrying out hydrothermal crystallization to obtain zeolite seed crystals; and (2) mixing a silicon source, an aluminum source, an alkali source and water to form sol, adding the zeolite seed crystals, aging, carrying out hydrothermal crystallization, and carrying out solid-liquid separation, washing, drying and roasting on mother liquor after crystallization to obtain the nano MFI / MOR eutectic molecular sieve; subjecting the nano MFI / MOR eutectic molecular sieve to acid pickling, water washing, drying and roasting so as to obtain an aluminium-removed nano MFI / MOR eutectic molecular sieve; and carrying out gas-solid phase isomorphous substitution on the aluminium-removed nano MFI / MOR eutectic molecular sieve and titanium tetrachloride to obtain the nano Ti-MFI / MOR eutectic molecular sieve. The nano Ti-MFI / MOR eutectic molecular sieve synthesized by the method disclosed by the invention is low in cost and small in grain size (60-190 nm), shows excellent catalytic performance in the reaction of catalyzing ammoxidation of cyclohexanone to prepare cyclohexanone-oxime and hydroxylation of phenol to prepare benzenediol, and has great industrial application potential.