142 results about "Conjugated microporous polymer" patented technology

The invention discloses a conjugated microporous polymer, and a preparation method and application thereof. The preparation method of the conjugated microporous polymer comprises the following steps:under the atmosphere of argon or nitrogen, mixing a compound II, a compound III, cuprous iodide and a palladium catalyst into an diisopropylamine / organic solvent mixed solution, and uniformly carryingout stirring at room temperature; carrying out ultrasonic dispersion, carrying out freezing and deoxidizing, then carrying out heating to 50-120 DEG C, and carrying out a reaction for 24-72 hours; and carrying out cooling to room temperature, and carrying out filtering, washing and drying. An ion-loaded nano-composite catalytic material is prepared by taking the conjugated microporous polymer asa carrier to load nano-silver particles. The composite catalytic material can be used for efficient catalytic reduction of industrial pollutant p-nitrophenol, and the industrial pollutant p-nitrophenol is converted into common medicines and chemical raw material p-aminophenol. In addition, the catalyst has good solvent tolerance, stability and recyclability.

The invention provides a preparation method of a conjugated micro-porous polymer. By performing infrared spectral characterization on prepared compounds of two structures, the compounds prepared in the invention are conjugated micro-porous polymers, are conjugated micro-porous polymers of novel structures, have the advantages of being large in specific surface area, porous, excellent in thermal stability and the like, and lay a good foundation for wide application of the conjugated micro-porous polymers in the fields of gas absorption, conduction, biodegradation and the like.

The invention discloses a preparation method of a conjugated microporous polymer thin film and application thereof. The polymerized precursor of the conjugated microporous polymer is electroactive group-containing organic molecules; the general formula of the electroactive group-containing organic molecules is ABm, wherein A is a core unit, and B is electroactive units, the number m of B being decided by the structure of A; A is a unit of a biphenyl-like structure such as triphenylethylene and tetraphenyl ethylene; and B is a group such as carbazole, pyrrole, furan, thiophene, diphenylamine or triphenylamine. The invention also discloses the preparation method of the above conjugated microporous polymer thin film and the application of the conjugated microporous polymer thin film to a supercapacitor. According to the preparation method of the invention, an electrochemical method is utilized to synthesize the conjugated microporous polymer thin film; and the conjugated microporous polymer thin film has high specific surface area and high stability, and has broad prospects in fields for improving the capacitive performance and cycle stability of supercapacitors. The method of the present invention is environmentally friendly, just has simple requirements for equipment and is suitable for large-scale industrial production.

The invention researches and develops a novel catalyst capable of catalyzing the reaction of CO2 with epoxyalkane to produce cyclic carbonate at a temperature of 0 to 160 DEG C and a pressure of 0.1 to 6 MPa and a preparation and application thereof. The catalyst is a cobalt complex conjugated microporous polymer CMP[Salen-Co-R1] and has structural formulas of CMP-1, CMP-2 and CMP-3 as described in the specification; in the formulas, R1 is -OAc, -Cl, -Br or -I, and R2 is -H, -tBu, -iBu, -NO2, -Cl, -CH2NEt2 or -CH2N(Bn)Et2Br. The polymer catalyst is used to catalyze the reaction of CO2 and epoxyalkane at normal temperatures and pressures, yield of obtained cyclic carbonate is 35 to 90%, and repeated usage of the catalyst almost poses no influence to the yield; the yield is more than 90% when the reaction is carried out at a high temperature of 50 to 120 DEG C and a high pressure of 2 to 6 MPa for 1 to 3 h. According to the invention, catalysis of the reaction of CO2 with epoxyalkane is realized under mild reaction conditions, so restriction of high temperatures and pressures on the reaction is overcome; and the catalyst can be repeatedly used, so the problem of a low utilization rate of the catalyst in the prior art is overcome.

The invention discloses a porphyrin group-containing conjugated microporous polymer and a preparation method thereof, The prepared conjugated microporous polymer has the inherent properties of large specific surface area, narrow pore size distribution, high physical and chemical stability, low skeleton density and the like, and shows a quite excellent adsorption capability on vapor molecules (likebenzene, methylbenzene, cyclohexane and vapor). Compared with the traditional adsorption material, the porphyrin group-containing conjugated microporous polymer facilitates the implementation of thereversible processes of capturing and releasing organic vapor through physical adsorption, and the vapor adsorbed by the polymer is capable of separating the vapor from a skeleton of the polymer through simple vacuum drying, so that the possibility of recycling materials is realized, and the recycling and reutilization of a solid adsorbent are facilitated. In addition, the method provided by the invention is simple, the cost of raw materials is low, and the porphyrin group-containing conjugated microporous polymer is suitable for large-scale industrial production.

The invention discloses a novel conjugate microporous polymer based on a BODIPY derivative. The conjugate microporous polymer integrally forms a large conjugate skeleton and has high specific surface area, a good porous character, good heat stability and chemical stability and wide application prospects in the fields of gas separation, ion detection, gas absorption, catalysis and the like. The invention further discloses a preparation method of the conjugate microporous polymer. According to the method, 9-anthraldehyde and 2,4-dimethyl-1H-pyrrole serve as raw materials, BODIPY chromophore containing an anthracene group is obtained through multiple steps, then, the BODIPY chromophore containing the anthracene group and 1,3,5-triethynylbenzene are subjected to Sonogashira reaction under catalysis of tetrakis(triphenylphosphine)platinum and CuI, and the conjugate microporous polymer is obtained.

The invention provides a porous carbon nanometer material and preparation method and purpose thereof. The porous carbon nanometer structure is prepared by heat treatment on a conjugate microporous polymer obtained through polymerization of polymerization molecules through Friedel-Crafts reaction or Scholl Reaction, a composite nanometer material obtained through in situ polymerization of the polymerization molecules and low-dimensional carbon nanometer material, or a composite material obtained through non in situ polymerization of the conjugate microporous polymer obtained through polymerization of polymerization molecules and the low-dimensional carbon nanometer material. A three-dimensional nanopore carbon skeleton prepared in the invention has pore structures having high specific surface area and distributed uniformly, so that a rich electric conducting network and a good ion flow path are provided. The porous carbon nanometer material provided by the invention shows high specificcapacitance, high rate capability and good cycling stability in a super capacitor.

The invention discloses a preparation method of a high-purity tubular conjugated microporous polymer carbonized high-purity carbon nanotube. The method comprises the following steps: by using 1, 3, 5-triethynylbenzene and 2-amino-3, 5-dibromopyridine as monomers, using toluene and trimethylamine as solvents, and Pd(0) and CuI as catalysts, and regulating proportion of acetenyl and bromine in the monomers as 5: 1, polymerizing for 72 hours at 80 DEG C to prepare the high-purity organic polymer nanotube, and then carbonizing under the carbonization temperature by using the organic polymer nanotube as the precursor to obtain the high-purity carbon nanotube.

The invention relates to a pyridyl-containing conjugated microporous polymer and a preparation method and an application thereof. The preparation method comprises the following steps: mixing triformylbenzene with 1,3,5-triacetylbenzene; adding ammonium acetate and an acid; carrying out a reaction after full dissolution; and washing, filtering and vacuum drying the mixture to obtain the pyridyl-containing conjugated microporous polymer. Carbonyl of two aromatic compounds containing carboxyl and ammonium acetate in an acid environment is deoxidized to form a cycle to form the pyridyl so as to construct a conjugated microporous network structure to generate the pyridyl-containing conjugated microporous polymer. The pyridyl-containing conjugated microporous polymer has potential application value in the fields of gas adsorption and separation, electrochemical performance, catalysis and the like.

The invention provides a conjugated microporous polymer adopting ketone-enamine bond connection and a preparation method thereof. The structure of a repetitive unit of the conjugated microporous polymer is shown in the formula (I) (shown in the description). The preparation method of the conjugated microporous polymer adopting the ketone-enamine bond connection comprises the following steps: fully mixing 2, 4, 6-trialdehyde phloroglucinol and an acetic acid aqueous solution under the oxygen-free condition, and adding m-phenylenediamine for reaction, so as to obtain the conjugated microporous polymer adopting ketone-enamine bond connection, of which the repetitive unit has a structure shown in the formula (I) (shown in the description). Compared with the prior art, the conjugated microporous polymer and the preparation method have the benefits as follows: 1, the conjugated microporous polymer adopting the ketone-enamine bond connection, synthesized by the preparation method for the first time has higher specific surface area and high stability, and has wide prospect in the fields of carbon dioxide adsorptive separation and the like; 2, the preparation method is environment-friendly, pollution-free and simple in equipment requirements, thereby being suitable for industrialized large-scale production.

The invention discloses a method for preparing a TEMPO free radical functionalized hollow conjugated microporous polymer based on a SiO2 template and application. The method comprises the following steps: adding a palladium catalyst, cuprous iodide and SiO2 nano microspheres into an organic solvent, and stirring for 0.5 hour to 1.5 hours in a nitrogen protection environment to obtain a mixed solution; adding an aromatic alkyne monomer and a TEMPO free radical functionalized monomer into a mixed solution, heating to 90 DEG C and 110 DEG C, and reacting for 24 hours to 50 hours to obtain a functionalized conjugated microporous polymer material (SiO2@CMPs-TEMPO) with SiO2 coated with a TEMPO free radical functionalized porous material; drying SiO2@CMPs-TEMPO, adding the dried SiO2@CMPs-TEMPOinto a hydrofluoric acid aqueous solution, stirring for 2 hours to 4 hours, etching SiO2, cleaning, and centrifuging to obtain the TEMPO free radical functionalized hollow conjugated microporous polymer material (HCMPs-TEMPO). The TEMPO free radical functionalized hollow conjugated microporous polymer material provided by the invention can efficiently catalyze the oxidation of alcohol organic matters.

The invention develops novel catalysts which can be used for catalyzing the cycloaddition of CO2 and epoxy alkane at 0-160 DEG C and 0.1-6MPa to generate corresponding cyclic carbonates and a preparation method thereof. The catalysts provided by the invention are metal chromium, zinc or copper complexed conjugated microporous polymer (CMP) catalysts, wherein CMP-1 is one type of metal chromium complexed polymers, CMP-2 is one type of metal zinc complexed polymers, and CMP-3 is one type of metal copper complexed polymers; by using the polymer catalysts complexed by different metals to catalyze the reaction of CO2 and epoxy alkane at normal temperature and normal pressure, the yield of the obtained corresponding cyclic carbonates is 35-38%, the recovery of the catalysts is simple and convenient to operate, and the reuse of the catalysts can not affect the yield; meanwhile the reaction conditions are controlled, and the yield can achieve above 90% when the reaction is performed at the temperature of 50-120 DEG C and the CO2 pressure of 2-6MPa for 1-3 hours.

The invention provides a preparation method of a ferrocene-based conjugated microporous polymer. The preparation method includes the steps that 1, 5-15% of a first construction unit, 10-20% of a second construction unit, 0.1-0.5% of a catalyst, and 75-85% of a dispersing medium are sequentially added into a container, ultrasonic dispersion is conducted for 30 minutes under the protection of inert gas, the inert gas is fed in a filled mode, freezing, air sucking and unfreezing are conducted and circulated three times, the temperature is slowly raised to 65 DEG C within 2 hours, and a thermostatic reaction is conducted for 72 hours; 2, after the reaction is ended, filtration is conducted, and washing is conducted with chloroform, distilled water, methyl alcohol and acetone four times; 3, Soxhlet extraction is conducted with methyl alcohol for 48 hours, and a product is subjected to vacuum drying for 24 hours at the temperature of 70 DEG C. A one-step method is adopted for preparing a ferrocene-based conjugated microporous polymer high molecular material, and the material has a high BET surface area and pore volume, good chemical stability and thermal stability and has potential application value on the aspects of adsorption, sewage treatment, catalyzing, gas separation, gas storage and fluorescence sensing.

The invention provides a conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)pyrimidine and a preparation method of the conjugated microporous polymer, and belongs to the technical fieldof conjugated microporous polymers. S-indacene-1,3,5,7(2H,6H)-tetrone is introduced on the basis of 2,4,6-tris(4-formylphenyl)pyrimidine, and the prepared conjugated microporous polymer is a polymer with a sheet and amorphous structure, has a large conjugated structure and can be used as a photocatalyst.

The invention provides a method for treating pollutants in water by taking an organic fluorine conjugated microporous polymer as an adsorbent and belongs to the field of water treatment. The method comprises the following steps: adding the adsorbent with the concentration of 10-500mg / L into water containing pollutants for adsorbing for 0.1-24h at the room temperature, wherein the adsorbent can simultaneously or independently adsorb and remove waste oil, an organic solvent, organic dye and / or toxic heavy metal ions in the water, and is the organic fluorine conjugated microporous polymer, obtained through catalytic self-polymerization of 1,3,5-trifluoro-2,4,6-tri-alkynyl benzene, the specific surface is around 700-1000m<2> / g and the contact angle of surface water of the adsorbent is 157-167 degrees. The super-hydrophobic microporous conjugated fluorinated polymer provided by the invention has a relatively large specific surface and total hole volume, provides a more favorable condition for adsorbing pollutants in water, can adsorb the waste oil, the organic solvent, the organic dye and the heavy metal ions in the water simultaneously, and in addition, has relatively high adsorption capacity, and the method provided by the invention is simple and convenient to operate and simple in process route, and has a wide application value in the field of water treatment.

The invention provides a conjugated microporous polymer aggregation-induced ECL sensor based on tetraphenyl ethylene and a preparation method and application thereof. According to the invention, threekinds of TPE-CMP (namely, TPE-CMP-1, TPE-CMP-2 and TPE-CMP-3) are used for researching an ECL mechanism; the advantages of a luminescence technology and an electrochemical technology are combined; and tri(4-acetenylphenyl)amine (TEPA), 4,4'-diacetenyl biphenyl (DEBP) and 2,4,6 tri(4-acetenylphenyl)-1,3,5-triazine (TEPT) are respectively prepared by using different coupling agents, and are furtherused for constructing an ECL sensor for detecting dopamine. Testing results prove that the ECL sensor has extremely high sensitivity to dopamine and can be used for analyzing biological samples, so the ECL sensor has good practical application value.

The invention relates to the field of quantum dots and diffusion membranes and particularly relates to a fluorenyl-based conjugated microporous polymer diffusion particle for complexing quantum dots,a preparation method thereof, a quantum dot diffusion membrane and an application thereof. In order to solve the problem that inorganic quantum dots are exposed to air and can be easily oxidized to lose effects. The invention provides the fluorenyl-based conjugated microporous polymer diffusion particle for complexing quantum dots, the preparation method thereof, the quantum dot diffusion membraneand the application thereof. The fluorenyl-based conjugated microporous polymer is complexed with the quantum dot and the quantum dot is wrapped by the diffusion particle. Through complexing of the organic fluorene material and wrapping of the inorganic quantum dot, it is avoided that the inorganic quantum dot is exposed to air and can be easily oxidized to lose effects. The preparation method ofthe diffusion particle is simple, has strong controllability, is low in coat and fast realizes large-scale production and custom-level refinement application.

The invention discloses novel dibenzothiophene diketo conjugated microporous polymers (CMPs), which can be prepared easily and have an excellent performance on catalyzing oxidation of thioether. For the first time, the inventor finds that at a room temperature, CMPs can catalyze oxidation of thioether under illumination. The prepared CMPs have the advantages of good performance on absorbing UV rays, large specific area, good thermal stability, and high chemical stability, can efficiently catalyze the oxidation of thioether, achieve high selectivity, can be used in circles, and have an important application value and application prospect in oxidation of thioether of organic synthesis.

The present invention discloses a water-soluble cationic conjugated microporous polymer phosphorescent probe and a preparation method thereof. 2-(4-bromophenyl) pyridine iridium dichloride bridged complex Ir2(Brppy)4Cl2, 3,8-dibromo phenanthroline and 3,8-dibromo phenanthroline iridium 2-(4-bromophenyl) complex are sequentially prepared to prepare an objective polymer. The polymer chemical probe prepared through the above technical scheme has good water solubility and can bind with nucleic acid through electrostatic interaction; the probe has good phosphorescence emission in water and long luminescence lifetime; and a time-resolved fluorescence technique can effectively eliminate interference of the background fluorescence and improve detection sensitivity. The preparation preparation method has the advantages of simple operation and easily available raw materials, and is beneficial to reduce the cost.

The invention discloses a silver ion-doped azo conjugated microporous polymer, a preparation method and application, which belong to the technical field of polymer material preparation. Specifically,with 4-(1,2,2-tri(4-aminophenyl)vinyl)aniline and phloroglucinol as comonomers, under the catalysis of concentrated hydrochloric acid, coupling is carried out by diazo-coupling reaction, silver ions are then loaded, and thereby the silver ion-doped azo conjugated microporous polymer is prepared. The polymer prepared by the invention shows excellent adsorption capability on iodine molecules, moreover, the performance of the polymer is excellent in aspects such as detecting heavy metal ions Cu<2+>, Hg<2+>, Cr<3+> and Ni<2+>, and the polymer has potential application value in fields such as iodine adsorption and heavy metal ion detection.

The invention relates to a composite catalyst based on a conjugated microporous polymer, and a preparation method and an application thereof. The preparation method comprises the following steps: acidifying an inert carrier, and then reacting the acidified inert carrier with a silane coupling agent to obtain a carrier having an amino group-modified surface; reacting the carrier having the amino group-modified surface with halogenated benzaldehyde to obtain a halogenated carrier; carrying out a coupling reaction on the halogenated carrier, a first monomer and a second monomer under the action of a catalyst to obtain a conjugated microporous polymer-modified carrier; and contacting the conjugated microporous polymer-modified carrier with an organic solution of a noble metal salt, and carrying out a hydrogen reduction reaction to obtain the composite catalyst based on the conjugated microporous polymer. The conjugated microporous polymer with high radiation resistance and high hydrophobicity is loaded on the surface of the inert carrier to form a matrix for loading the noble metal in order to improve the catalytic performance and the restart performance of the noble metal catalyst, and the composite catalyst is used for catalytic oxidation of hydrogen and its isotopes.

The invention discloses a Troger's base conjugated microporous polymer and a preparation method thereof. The Troger's base conjugated microporous polymer is prepared by taking diiodo Troger's base andcarbazole or aromatic diyne and triyne compounds as raw materials through an oxidative coupling or Sonogashira coupling copolymerization reaction. The conjugated microporous polymer has a V-shaped rigid skeleton structure, is high in physical and chemical stability, strong in gas adsorption capacity, large in specific surface area and strong in visible light absorption capacity, and can be applied to the fields of photocatalytic pollutant degradation, water decomposition and CO2 reduction.

The invention discloses a preparation method and application for a patterned two-dimensional conjugate microporous polymer, and belongs to the field of polymer semiconductor materials. The two-dimensional conjugate microporous polymer uses carbazole as a skeleton; and the preparation method comprises the followings steps: rotatingly coating a flat substrate by a carbazole derivative or dripping the carbazole derivative on the flat substrate to form a film, adding a mask to the monomer film, placing the treated film under a light source, performing a photopolymerization reaction, wherein the irradiated monomer is subjected to a cross-linking reaction, and the monomer masked by the mask is not subjected to a reaction, and soaking the irradiated monomer film in an organic solvent, wherein thefilm subjected to the cross-linking reaction generates a polymer, and the unreacted monomer is dissolved, so that the large-area patterned ultra-thin two-dimensional conjugate microporous polymer film is prepared. The method disclosed by the invention is a direct patterning method, and avoids the steps of etching and the like in a conventional patterning method; and the patterned film can be applied to devices without transfer.

The invention relates to a nitrogen and iron doped conjugated microporous carbon material, and a preparation method and application thereof. A nitrogen-containing conjugated microporous polymer (CMP)is synthesized through a Sonogashira-Hagihara coupling reaction, then an iron element is directionally doped, and finally carbonizing is realized through high-temperature pyrolysis to prepare the nitrogen and iron doped conjugated microporous carbon material. According to the invention, the Fe element is directionally doped into the conjugated microporous polymer, so that the conjugated microporous polymer successfully shows good oxygen reduction catalytic activity, can be used as a positive electrode catalyst for a fuel cell and provides a new choice for positive electrode materials of fuel cells. The preparation method is simple in preparation process and convenient to control.

The invention discloses a sulfonyl conjugated microporous polymer, a preparation method and application. The conjugated microporous polymer is formed by coupling aryl dibromide containing sulfonyl and ethynyl compounds through Sonogashira, the material structure contains rich sulfonyl group sites, and alkali metal ions can be effectively replaced and combined through ion exchange. The sulfonyl sites can promote cation migration, and high migration number and stable high conductivity are obtained. The sulfonyl conjugated microporous polymer solid electrolyte has good lithium ion conductivity, the lithium ion conductivity is 1.71*10<-4> S*cm<-1> at 40 DEG C and reaches 2.34*10<-3> S*cm<-1 > at the high temperature of 120 DEG C, and an assembled solid lithium ion battery can stably run at the high temperature.

The invention provides a conjugated microporous polymer based on 1,3,5-tribenzaldehyde and a preparation method of the conjugated microporous polymer and relates to the technical field of organic porous materials. The conjugated microporous polymer provided by the invention has a structure of a formula I shown in the specification. The conjugated microporous polymer provided by the invention is novel in structure and is a novel conjugated microporous polymer. The conjugated microporous polymer provided by the invention belongs to undefined structures, has a remarkable granule concentrated cluster morphology and micropore structure, and has good thermal stability and ultraviolet absorption. The invention provides the preparation method of the conjugated microporous polymer. The conjugated microporous polymer is prepared from 2,4,6-trimethyl-1,3,5-triazine and 1,3,5-tribenzaldehyde through a condensation reaction under an alkali catalysis function. The preparation method provided by theinvention adopts one-step synthesis, is free of heavy metal or noble metal as a catalyst, and is simple in process and easy in condition control.

The invention relates to a preparation method and use of a conjugated microporous polymer with bacteriostatic activity. The method comprises the following steps: mixing 1, 3-dibromo-5, 5-dimethylhydantoin with 1, 3, 5-triethynylbenzene or 1, 4-diethynylbenzene according to a molar ratio of 1-10; carrying out polymerization for 72h at the temperature of 80 DEG C by taking methylbenzene and triethylamine as solvent and taking Pd(0) and CuI as catalysts so as to obtain the conjugated microporous polymer with the good bacteriostatic activity. The conjugated microporous polymer can be prepared intonano porous foam, or is used for coating the surface of a porous substrate, and is used as an effective antibacterial agent in water.

The invention relates to the technical field of lithium batteries, and especially relates to a solid-state lithium battery. The solid-state lithium battery comprises a positive electrode, a negative electrode and a solid-state electrolyte, and the solid-state electrolyte is an organic porous material; the material of the positive electrode is a nickel cobalt lithium manganate ternary material of which the surface is coated with the organic porous material or the derivative thereof; and the organic porous material is a covalent organic framework material, a conjugated microporous polymer or a porous aromatic framework material. The nickel cobalt lithium manganate ternary material with the surface coated with the organic porous material or the derivative thereof is used as the positive electrode, the organic porous material is used as the solid electrolyte, and the two materials are combined to effectively enhance the interface contact between the electrode and the electrolyte, eliminate the side reaction, stabilize the interface and improve the performance of the solid-state battery. For example, the cycling stability and the rate capability are improved.

The invention provides tubular conjugated microporous polymer phase-change composite energy-storage materials and a preparation method thereof. The materials are prepared from 40-70% of tubular conjugated microporous polymers and 30-60% of a phase-change material. The preparation method includes the steps that firstly, the tubular conjugated microporous polymer CMPN-1 is prepared; secondly, the tubular conjugated microporous polymer CMPN-2 is prepared; thirdly, the tubular conjugated microporous polymer CMPN-3 is prepared; fourthly, by weight, 4-5 parts of the prepared tubular conjugated microporous polymers and 5-6 parts of the organic phase-change material are weighed; fifthly, the organic phase-change material weighed in the fourth step is heated to 70-100 DEG C; sixthly, the tubular conjugated microporous polymers CMPN-1, CMPN-2 and CMPN-3 weighed in the fourth step and the organic phase-change material heated in the fifth step are mixed according to the proportion of 4:5 or 5:6, evenly stirred, heated for 4-12 hours at the temperature of 70-80 DEG C and dried to a constant weight, and the conjugated microporous polymer CMPN-1-based phase-change composite energy-storage material, the conjugated microporous polymer CMPN-2-based phase-change composite energy-storage material and the conjugated microporous polymer CMPN-3-based phase-change composite energy-storage material are obtained.

The invention discloses an additive capable of reducing phenol content in main stream smoke, as well as a preparation method and an application method of the additive. The preparation method comprises the following steps: taking CMP (conjugated microporous polymer) as an active ingredient; taking activated carbon, chitosan and sodium alginate as carriers; obtaining loaded type materials; adding the prepared loaded type materials into a cigarette filter stick to prepare a composite filter stick; and rolling up the cigarette. The analysis shows that the cigarette with the loaded type materials can effectively reduce content of phenol in the smoke by 10-35%. The cigarette filter stick additive capable of reducing harm is simple in preparation method and convenient to industrially produce at large scale.