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108 results about "Iron phthalocyanine" patented technology

A kind of surface iron modified titanium dioxide photocatalyst and its preparation method and application

The invention provides a surface iron modified titanium dioxide photocatalyst comprising titanium dioxide powder and / or film, wherein a highly-dispersive iron oxygen compound is contained in the surface of the titanium dioxide powder and / or film. The invention also provides a preparation method of the photocatalyst, comprising the steps of: adsorbing the iron phthalocyanine in a solution to the surface of the titanium dioxide through taking pre-burnt titanium dioxide as a titanium source, taking macromolecule iron phthalocyanine with different substituent groups as an iron source and taking water-organic solvent as a mixed solvent, firing at a specific temperature so as to destroy a ring structure of phthalocyanine, removing carbon, nitrogen, oxygen and hydrogen elements except the iron element in iron phthalocyanine molecule and finally obtaining the composite photocatalyst. The invention also provides application of the photocatalyst and the photocatalyst can be used for degrading phenol and chlorinated phenol organics by utilizing ultraviolet light. The photocatalyst provided by the invention has the advantages that raw materials are easy to get, the preparation method is simple, compared with a blank titanium dioxide photocatalyst, the iron modified titanium dioxide photocatalyst has obviously increased activity and the stability of the photocatalyst is good to ensure thatphenomenons of salvation and form transition of iron do not happen in reaction processes.
Owner:ZHEJIANG UNIV

Iron-nitrogen-carbon composite material containing monatomic active sites as well as preparation and application methods of iron-nitrogen-carbon composite material

The invention provides an iron-nitrogen-carbon composite material containing monatomic active sites, which comprises a carrier containing graphite-like carbon nitride and iron monatomic combined with the carrier, so that the catalytic activity to peroxymonosulfate is improved, and a large amount of metal ions are prevented from being dissolved out. The preparation method comprises the following steps: S1, dissolving a nitrogen-containing carbon source in an ethanol solution to obtain a solution A; wherein the nitrogen-containing carbon source is prepared from one or more of melamine, dicyandiamide and urea; S2, dispersing an iron-containing metal precursor in the solution A, and then performing evaporation to dryness treatment to obtain a mixed substance B; wherein the iron-containing metal precursor comprises one or two of chlorhematin and iron phthalocyanine; and S3, sequentially performing grinding and mixing treatment, pyrolysis treatment and cooling treatment on the mixed substance B, sequentially performing acid pickling treatment, water washing treatment and drying treatment on a substance obtained after cooling treatment, and obtaining the iron-nitrogen-carbon composite material.
Owner:CENT SOUTH UNIV

Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof

The invention relates to an iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and a preparation method thereof, belonging to the technical field of the organic magnetic material. the technical problem solved by the invention is to provide a simple and efficient preparation method with low cost and then obtain the iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material which has small particle size, high magnetism and stable magnetic properties at the room temperature, resists high temperature and oxidation and is easy to process. The magnetic material uses 4,4'-biphenol type bisphthalonitrile as polymer monomer, FeCl3.3H2O as crosslinking agent and N-methylpyrrolidone as solvent; and the preparation method is as follows: performing early prepolymerization of solution to form phthalocyanine prepolymer, and using FeCl3.3H2O as iron source to perform sequential hydrothermal crystallization. The high temperature resistant polymer magnetic material of the invention has novel design and simple preparation method; and the saturation magnetization is 48-65emu/g, the coercive force is 37-47Oe and the residual magnetization is 0.03-0.4emu/g. The material of the invention can be widely used in the technical fields such as high temperature resistant polymer magnetic composites, electronic devices and biocatalysis technology.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Hydrotalcite-loaded iron phthalocyanine visible light-fenton catalyst, preparation method and application thereof

The invention discloses a hydrotalcite-loaded iron phthalocyanine visible light-fenton catalyst, a preparation method and an application thereof. The visible light-fenton catalyst is formed by magnesium aluminium nitrate hydrotalcite and its loaded tetra-sulfonic iron phthalocyanine, through the adsorption effect of the magnesium aluminium nitrate hydrotalcite on tetra-sulfonic iron phthalocyanine and ion exchange effect between the magnesium aluminium nitrate hydrotalcite and tetra-sulfonic iron phthalocyanine, the tetra-sulfonic iron phthalocyanine is loaded on an interlayer and surface of the magnesium aluminium nitrate hydrotalcite; and the catalyst is used for visible light-fenton degraded dye waste water and has good degradation effect. The application of the visible light-fenton catalyst widens a reaction pH value scope of Fenton-like compounds, reduces an usage amount of a H2O2 reagent, enhances the degradation efficiency of the Fenton-like compounds on the dye waste water in a visible light zone, and greatly reduces the processing cost of the dye waste water, cost is low, environment is friendly, and the visible light-fenton catalyst has industrial application prospect.
Owner:XIANGTAN UNIV

Core shell carbon nano-structure electrocatalyst with high catalytic performance and preparation method thereof

The invention discloses a core shell carbon nano-structure electrocatalyst with high catalytic performance and a preparation method thereof. Phthalocyanine iron having an enclosed edge structure is used as a shell, a conductive carbon is used as a core, and an Fe-N4 central structure of iron phthalocyanine unit is used as an active site. The preparation method comprises the following steps: 1), adding the conductive carbon into a mixed solution of pyromellitic dianhydride and phthalic anhydride, and performing drying to obtain powder A; 2), uniformly mixing the powder A with an iron compound,ammonium molybdate and urea to obtain powder B, heating to ensure that the powder B is a fused solution, performing microwave reaction to ensure that in-site polymerization reaction is carried out, and performing washing and drying to obtain the core shell carbon nano-structure electrocatalyst with the high catalytic performance. Being obviously superior to commercial Pt/C catalyst, the novel core shell carbon catalyst disclosed by the invention has excellent high oxygen reduction catalytic activity, excellent circulation stability and excellent CH3OH/CO tolerance; the raw materials used by synthesis of the catalyst are market developed products and are low in cost; the preparation process is simple and feasible, and is suitable for commercial mass production.
Owner:WUHAN UNIV

Iron phthalocyanine prepolymer/Fe3O4 nanometer hybrid magnetic material and preparation method thereof

The invention relates to an iron phthalocyanine prepolymer / Fe3O4 nanometer hybrid magnetic material and a preparation method thereof, belonging to the technical field of the organic magnetic material. the technical problem solved by the invention is to provide a simple and efficient preparation method with low cost and then obtain the iron phthalocyanine prepolymer / Fe3O4 nanometer hybrid magneticmaterial which has small particle size, high magnetism and stable magnetic properties at the room temperature, resists high temperature and oxidation and is easy to process. The magnetic material uses 4,4'-biphenol type bisphthalonitrile as polymer monomer, FeCl3.3H2O as crosslinking agent and N-methylpyrrolidone as solvent; and the preparation method is as follows: performing early prepolymerization of solution to form phthalocyanine prepolymer, and using FeCl3.3H2O as iron source to perform sequential hydrothermal crystallization. The high temperature resistant polymer magnetic material of the invention has novel design and simple preparation method; and the saturation magnetization is 48-65emu / g, the coercive force is 37-47Oe and the residual magnetization is 0.03-0.4emu / g. The material of the invention can be widely used in the technical fields such as high temperature resistant polymer magnetic composites, electronic devices and biocatalysis technology.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Preparation of surface roughened magnetic nano-microspheres and composite materials thereof

The invention relates to a preparation technology of surface roughened (microporous) magnetic nano-microspheres and composite materials thereof and belongs to the field of nanometer materials. The technology comprises the following steps: taking a series of phthalonitrile of different structures as organic monomers, taking FeCl3.6H2O as an iron source, taking ethylene glycol as a solvent and a reducing agent, performing redox self-assembling according to a one-step solvothermal method, thereby obtaining iron phthalocyanine/Fe3O4 magnetic nano-microspheres; performing surface etching on the microspheres to obtain surface roughened and porous nano-microspheres, uniformly dispersing the nano-microspheres into an aromatic nitrile polymer, thereby obtaining a polymer-based nanometer composite material which is high in thermal stability and excellent in interfacial compatibility and has excellent magnetic properties. According to the invention, the surface roughened and porous iron phthalocyanine/Fe3O4 magnetic nano-microspheres are prepared according to a simple method, and have potential application values in aspects such as catalyst carriers, adsorbing materials and the like. In addition, due to the roughened surface, the interfacial compatibility between a matrix and a filler is effectively improved, and the nano-microspheres can be widely applied to the field of materials such as magnetic composite materials, capacitors, semiconductor film devices and the like.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
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