The invention relates to a rare-earth terbium-based metal organic framework material, a synthesis method and application thereof to antibiotics identification. A chemical molecular formula of the metal organic framework material is {[Tb(TATAB)(H2O)].2H2O}n, wherein TATAB is an organic ligand 4,4',4''-s-triazine-1,3,5-tri-m-aminobenzoic acid. A basic structure unit contains one free terbium ion andone complete 4,4',4''-s-triazine-1,3,5-tri-m-aminobenzoic acid; protons of three carboxyl groups in the ligand are removed and then the carboxyl groups are bridged with the adjacent terbium ion; eachterbium ion is coordinated with five ligands and one water molecule, wherein two carboxyl groups are connected with two different terbium ions respectively to form a three-dimensional network structure. The material is simple to prepare, novel in structure and is stable in a water solution; the material can be used for rapidly detecting metronidazole (MDZ), ornidazole (ODZ), ronidazole (RDZ) anddimetridazole (DTZ) in the water solution.

Rare-earth terbium-based metal organic framework material, synthesis method and application thereof to antibiotics identification

The invention relates to a preparation method of a cadmium-based metal organic framework material and application thereof to ion recognition. The method is used for preparing colorless transparent strip-shaped crystals with molecular formula [Cd2(mu3-OH)(L)(H2O)2]n from cadmium nitrate, 5-(3-(4-tetrazolyl)phenyl)isophthalic acid (H3L), DMA and water under solvothermal synthesis conditions. The compound belongs to the monoclinic system, has the space group P21/c, is of high water stability, can selectively recognize Cu ions in aqueous solutions of various common different cations based on the fluorescence quenching degree, can reach the detection limit up to 6.63 multiplied by 10 M, can be used as a fluorescent probe material in the field of analysis and detection of metal ions in water, is reusable, and has broad application prospects.

Preparation method of cadmium-based metal organic framework material and application thereof to ion recognition

The invention provides a method for detecting antibiotics in drinking water to solve the problem that the existing fluorescent detecting article cannot achieve detection of a plurality of targets. Themethod includes the first step of preparing an H3dcpcpt rare earth complex; the second step of preparing an H3dcpcpt rare earth complex solution; the third step of conducting H3dcpcpt rare earth complex fluorescence detection; the fourth step of conducting drinking water fluorescence detection; the fifth step of calculating. The method is used for detecting the antibiotics in the drinking water.

Method for detecting antibiotics in drinking water

The invention provides a preparation method of a Ru/C nano-assembly, relates to the field of preparation methods of noble metal modified carbon nanocomposites and aims to solve the technical problemsthat the conventional catalyst has lower catalytic efficiency on an electrochemical reaction, low storage amount and high cost. According to the method, in a manner of synthesizing Ru-MOF with a KUST-1-like structure, RuCl3.xH2O, 1,3,5-trimesic acid, acetic acid, ethanol and water are mixed and subjected to a high-temperature one-step hydrothermal process to directly obtain the Ru/C nano-assembly.The catalyst has good catalytic activity for hydrogen precipitation and oxidation. The method is used for preparing the Ru/C nano-assembly, and the prepared material is applied to hydrogen evolutionby water electrolysis and hydrogen oxidation of a fuel cell anode.

Preparation method of Ru/C nano-assembly

The invention belongs to a load-type manganese-metal organic framework composite material, and discloses a composite catalytic material based on porous manganese-metal organic framework material loaded precious metal (Ag) and application of the composite catalytic material in catalyzing reduction of nitrophenol and isomer. A preparation method disclosed by the invention is realized by adopting a two-step synthesis technology and comprises the following steps: firstly, carrying out self-assembly on organic ligand 5'-(3,5-dicarboxyphenyl)-[1,1':3',1'-terphenyl]-3,3',5,5'-tetracarboxylic acid (H6L) and manganese chloride in a mixed solution of N,N-dimethylacetamide and water and to obtain a porous manganese-metal organic framework material; then loading precious metal nanoparticles into a matrix and pore canals of the porous manganese-metal organic framework material by utilizing an ultraviolet light reduction technology and finally obtaining Ag precious metal nanoparticles with uniform distribution and size. The load-type manganese-metal organic framework composite catalyst shows different catalytic activities in catalyzing the reduction of the nitrophenol and the isomer and shows stable and superior catalytic activity.

Preparation method and application of load-type manganese-metal organic framework composite material

The invention provides synthesis of an Eu-MOFs material and application of the material in antibiotic identification and belongs to the field of rare earth functional materials. A chemical molecular formula is [(Eu)(L)(NO3)[HOCN(CH3)2]n, wherein n only represents only internal molecules of the material to form infinite and alternate arrangement of a simplest molecular formula, and L represents 5-(3-(4-tetrazolyl)phenyl) isophthalic acid. The synthesis of the metal-organic metal frame material adopts a solvothermal method, a synthetic product of the method has very high stability in an N,N-dimethyl formamide (DMF) solution, the yield is higher, and nidazole antibiotics such as s metronidazole (MDZ), ornidazole (ODZ) and ronidazole (RDZ) can be selectively identified from (DMF) solutions containing a variety of antibiotics.

Synthesis of Eu-MOFs material and application of material in antibiotic identification

The invention relates to a preparation method for copper-based metal-organic framework materials and application of the copper-based metal-organic framework materials in hydrogen production through electro-catalytic decomposition of water. According to the method, blue blocky crystals are prepared from copper nitrate, 2,6-bis(2',4'-dicarboxylphenyl)pyridine (H4L), DMF, ethanol and water under thehydro-thermal synthesis condition and are ground and refined so as to obtain an electro-catalytic material [Cu3(HL)2(H2O)2]n. The preparation method for the electro-catalytic material is relatively simple; and an obtained electrocatalyst has relatively good water electrolysis and hydrogen evolution capacity, the Tafel slope can reach 90mV/decade, when the electric current density is 10mA/cm , the hydrogen evolution potential is 145mV, and the electrocatalyst is an ideal high-performance catalyst material and can be applied to the fields of new energy such as electro-catalysis hydrogen production.

Preparation method for copper-based metal-organic framework materials and application of copper-based metal-organic framework materials in electro-catalysis hydrogen production

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Synthesis of Eu-MOFs material and application of material in antibiotic identification

Preparation method for copper-based metal-organic framework materials and application of copper-based metal-organic framework materials in electro-catalysis hydrogen production