35 results about "Bismuth salts" patented technology

The invention discloses a preparation method and application of a single-phase bismuth titanate nano-material. The single-phase nano-material with the formula Bi20TiO32 which can not be easily obtained through conventional synthesis is prepared in a supercritical method with soluble bismuth salts and titanate as main raw materials, the crystalline state of the nano-material is good, and the image obtained by the transmission electron microscope shows that the nano-material is of a sheet-shaped nano structure with holes. The method for synthesis of the single-phase Bi20TiO32 nano-material has the advantages of low cost, mild reaction conditions, high yield, easy large-scale production in the industry and the like. The Bi20TiO32 nano-material obtained in the method shows high photocatalytic activity in the experiment of catalytic degradation of common organic pollutants under the sunlight. Moreover, the catalyst has high regenerability and still has good catalytic performance after being repeatedly used for eight times. Therefore, the catalyst has high industrial practicality.

The invention discloses a method for preparing bismuth titanate as a visible light response semiconductor photochemical catalyst, which comprises the steps of: dissolving bismuth salts in nitric acid at room temperature, dissolving vanadate or metavanadate same mol with the bismuth salts in 60-90 DEG C hot water, and respectively adding benzene or polyethylene glycol or a mixed solution of the benzene and the polyethylene glycol in two solutions obtained from the steps; and dropping vanadium-containing liquid into bismuth-containing liquid under the stirring state, stirring, ageing, filtering, washing and drying to prepare the bismuth titanate BiVO4 as a visible light response semiconductor photochemical catalyst. The BiVO4 prepared by the steps has the advantages of strong response of visual light, high photocatalytic oxidation degrading capability, simple preparation method, short reaction time and easy industrialized production.

The invention relates to a bismuth base (bismuth selenide, bismuth telluride) hydrogen storage material and a preparation method thereof, relating to low temperature liquid phase synthesis of bismuth base material and the application thereof on hydrogen storage, lithium storage and electrode material. The invention is characterized in that water is taken as solvent, bismuth salts such as bismuth nitrate, bismuth chloride and the like as a bismuth source, and water-soluble tellurium (selenium) acid salts (such as sodium tellurite, selenium substituted sodium sulfate, sodium selenite) or tellurium (selenium) acids (such as orthotelluric acid, tellurous acid and selenous acid) as a tellurium source (selenium) source; proper coordination agents (such as nitrilotriacetic acid, hexamethylene diamine tetraacethyl and the like) and reducing agents (such as vitamin C, sodium borohydride and the like) are added for liquid phase reaction synthesis at the low temperature of 60-80 DEG C. The bismuth selenide crystal grains prepared by the invention take on flower shapes with the sphere diameter of 1-6mum, and the bismuth telluride crystal grains take on sheet shapes with nanometer diameter; the hydrogen storage performance reaches over 100mAh.g. The method has the advantages of cheap raw material, simple technique, convenient operation, easy mass production, etc.

The invention relates to a nanometer zinc oxide-bismuth oxide composite photocatalyst with visible light response and a preparation method thereof. The composite is formed by compounding nanometer zinc oxide, bismuth oxide and graphene oxide at a mass ratio of 1: 0.05-1: 0-2. The preparation method comprises the steps of: respectively adding water-soluble zinc salts, bismuth salts and urea in an aqueous solution; after a co-precipitation reaction, centrifuging, washing, drying and roasting products; then placing the reaction products in an ultrasonically dispersed grapheme oxide aqueous solution to be heated and stirred for a reaction; after the reaction is finished, centrifuging, washing and drying the products to obtain the zinc oxide-bismuth oxide composite photocatalyst. The zinc oxide-bismuth oxide composite photocatalyst disclosed by the invention has better application prospect and economic benefits in the aspect of sewage treatment.

The invention relates to a preparation method of a piezoelectric ceramic with a high Curie temperature and a film thereof. The chemical formula of the prepared piezoelectric ceramic material is (1-x)(BiMg<1 / 2>Ti<1 / 2>O<3>)-x(PbTiO<3>)-yMe, wherein 0.3<=x<=0.45, 0<=y<=0.05, and Me represents a modifying element. Bismuth salts, magnesium salts, lead salts, chromium salts, or / and manganese salts and organic titanium salts are taken as the primary raw materials; through selecting a proper dispersing medium and controlling the solution temperature and concentration and addition sequence, the metal salts form uniform sol through the chelating effect of a stabilizing agent, then the sol is concentrated, dried and calcined to obtain piezoelectric nano powder with a high Curie temperature, and the piezoelectric nano powder is ball-grinded, dried, screened, pressed, and sintered to prepare piezoelectric ceramic with a high Curie temperature. Or through various solution methods such as spin coating, infiltrating, and the like, uniform sol is painted on an inorganic substrate to prepare a film, and then the substrate is dried and annealed to prepare a piezoelectric ceramic film. The prepared piezoelectric ceramic film can be used to prepare various related piezoelectric devices with a work temperature higher than 200 DEG C such as energy converter, sensor, and the like, and has a wide application prospect.

The present disclosure relates to a hair treatment agent for reducing and / or avoiding bleeding out and / or fading of artificially produced hair colours with a pH in a range of from about 3.5 to about 5 containing—relative to the total quantity of hair treatment agent—a) from about 0.01 to about 10 wt. % of a polyvalent metal salt, wherein the metal salt is selected from the group of strontium salts, zirconium salts, hafnium salts, titanium salts, tin salts, aluminium salts, bismuth salts, lanthanum maleate, lanthanum chloride and mixtures thereof andb) from about 0.01 to about 10 wt. % of an organic acid selected from the group of tartaric acid, citric acid, maleic acid, fumaric acid, salicylic acid, lactic acid, malic acid, amino acids and mixtures thereof.

The invention belongs to the field of nanometer materials, and discloses a porous and high-specific-surface-area bismuth-nanoparticle-modified nitrogen-doped carbon nanosheet material and a preparation method and application thereof. The preparation method comprises the following steps that a polyvinylpyrrolidone solution is used as a nitrogen source and a carbon source, and is added into a beaker; bismuth salts are added into a nitrogen source solution and stirred, and the pH value is adjusted by using a weak acid solution to dissolve all the bismuth salts; the prepared solution is placed inan electrothermal blowing dry box to be dried to obtain a solid precursor; and the solid precursor is ground into fine powder and then placed into a porcelain boat, and is placed into a tube furnace to be heated and roasted under the condition of protecting the air environment to obtain the nanosheet material. According to the preparation method, synthesis and doping of carbon nanomaterials and modification of bismuth nanoparticles are combined into one, the obtained bismuth-nanoparticle-modified nitrogen-doped carbon nanosheet material is stable in structure and performance, and the good heavy metal detection performance is achieved; and the preparation method is simple and easy to operate, low in cost and suitable for large-scale production.

An antibacterial or anti-acne formulation containing (a) tropone or a substituted tropone and (b) a metal or metal salt selected from copper, copper salts, bismuth, bismuth salts, silver, silver salts, and mixtures thereof, for use in the treatment of either acne or body odour. The substituted tropone may be for example tropolone or hinokitiol.

Waterborne cathodic electrodeposition (CED) coating agents comprising resin solids and optionally pigments, fillers, organic solvents and conventional coating additives, wherein said CED coating agents comprise at least one bismuth salt selected from the group consisting of bismuth hydroxycarboxylic acid salts and bismuth sulfonic acid salts in a quantity of 0.1 to 2.5 wt-%, calculated as bismuth and relative to resin solids content, together with at least one compound selected from the group consisting of yttrium and neodymium compounds in a quantity of 0.1 to 1 wt-%, calculated as metal and relative to resin solids content.

Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a bismuth mono- or dithiocarbamate or mono- or dithiocarbonate salt.

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.

This invention relates to salts of sulfodehydroabietic acid with bismuth or zinc, a kind of new salt useful in treating digestive canal ulcer, acute & chronic gastritis, and erosive gastritis etc., as well as its preparation and use. Said salts can be represented by formula (1), wherein R is Bi(OH)++ or Zn++, 2Bio+, 1 / 2ZnH, n=0–10. The preparation method comprises following steps: (a) sequentially treating the industrial abietic acid calcium salt with acid, base and extracting with organic solvent to give abietic acid with less isomer; (b) reacting said abietic acid with Pd / C to provide dehydroabietic acid, then converting it to pure sulphonic product, namely sulfodehydroabietic acid, via sulphonation and recrystallization; (c) by use of neutralization or salt displacement reaction to convert the sulphonic product of zinc or bismuth salts of sulfodehydroabietic acid. The resultant salts can used to prepare medicine for treating digestive canal ulcer and gastritis.

The present invention relates to a nanometer fluorescence thermometer and a preparation method thereof, specifically to a rare earth doped nanometer fluorescence thermometer and a preparation method thereof. The nanometer thermometer provided by the invention is the fluorescent material with particle sizes of 50-200 nm. The best preparation method is that: serving soluble bismuth salts, soluble erbium salts, TiO2 powder and excessive NaOH which are prepared according to the designed constituents as raw materials; uniformly mixing the mixture after adding water into the raw materials, and then transferring to a reaction still; performing hydrothermal reaction of the mixture at the temperature higher than 160 DEG C over 12 hours; and washing and drying the mixture, and obtaining the nanometer fluorescence thermometer. The nanometer fluorescence thermometer provided by the invention may be applicable to the temperature detection under a microenvironment, such as a real time online measurement of biological cells of living bodies, therefore the detection accuracy and the range of application may be greatly improved in the biology or other related industries.

The invention discloses a preparation method of a bismuth oxychloride nano sheet, and belongs to the technical field of photocatalytic water treatment in environmental chemical engineering. Accordingto the preparation method, tetrabutyl ammonium hydroxide is dissolved in deionized water, then chlorides and bismuth salts are added in sequence, the mixture is stirred and allowed to stand still fora while, the obtained precipitates are washed by deionized water and ethanol, and finally the precipitates are dried to obtain the bismuth oxychloride nano sheet. The photocatalytic material is synthesized from nontoxic reagents by a simple method. The method is green and environmentally friendly. The bismuth oxychloride nano sheet has a strong performance on degrading pollutants in the presence of visible light or / and full light and has a high application value in fields such as pollution treatment, new energy preparation, selective catalytic oxidation, and the like.

An antibacterial or anti-acne formulation suitable for topical or local application to human skin containing (a) either usnic acid or an usnate and (b) a metal salt selected from copper salts, bismuth salts, and mixtures thereof, wherein if the component (a) is an usnate, the components (a) and (b) are not the same compound.

The invention provides a method for measuring free bismuth in colloidal bismuth pectin or a preparation containing colloidal bismuth pectin. The method comprises the following steps of: adding ethanolwater solution with the volume concentration of 7-20% into the colloidal bismuth pectin or the preparation containing the colloidal bismuth pectin, and shaking to enable the dissolution to be uniform, or adding ethanol water solution with the volume concentration not more than 5% to shake and disperse, then adding ethanol until the volume concentration of the ethanol in the dispersion liquid is 30-50%, and shaking to enable the dissolution to be uniform to obtain colloidal solution; centrifuging to obtain supernatant; measuring by a complexometric titration method or an ultraviolet spectrophotometry method; and calculating the content of free bismuth in the colloidal bismuth pectin or the preparation containing the colloidal bismuth pectin. The ethanol aqueous solution not only has bettersolubility to free bismuth, but also can seal colloidal bismuth pectin molecules to a certain extent, and effectively prevent the dynamic bismuth salt release process of the colloidal bismuth pectin.According to the invention, the free bismuth is measured by dispersing the colloidal bismuth pectin with the ethanol aqueous solution, and the measuring result of the free bismuth is more accurate and reliable.

The invention belongs to the field of nanomaterials and solar photocatalysis, and specifically discloses a strip-shaped Bi 5 O 7 Preparation method of Br nanophotocatalytic materials. Using soluble bismuth salts and bromine-containing compounds as the main raw materials, the ribbon-like structure Bi was prepared by solvothermal method. 5 O 7 Br nanophotocatalytic material has good crystallization, high purity and no obvious impurity phase. The scanning electron microscope image shows the synthesized Bi 5 O 7 The microstructure of Br is a particularly regular band-like structure. The Bi belt-like structure prepared by the present invention 5 O 7 Br nanophotocatalytic materials have good visible light activity and showed high photocatalytic activity in experiments simulating visible light degradation of methyl orange. The ribbon-structured Bi synthesized by the present invention 5 O 7 The synthesis method of Br nanophotocatalytic materials is simple, easy to operate, and is conducive to large-scale industrial production.

This invention relates to salts of sulfodehydroabietic acid with bismuth or zinc, a kind of new salt useful in treating digestive canal ulcer, acute & chronic gastritis, and erosive gastritis etc., as well as its preparation and use. Said salts can be represented by formula (1), wherein R is Bi(OH)<++> or Zn<++>, 2Bio<+>, 1 / 2ZnH, n=0-10. The preparation method comprises following steps: (a) sequentially treating the industrial abietic acid calcium salt with acid, base and extracting with organic solvent to give abietic acid with less isomer; (b) reacting said abietic acid with Pd / C to provide dehydroabietic acid, then converting it to pure sulphonic product, namely sulfodehydroabietic acid, via sulphonation and recrystallization; (c) by use of neutralization or salt displacement reaction to convert the sulphonic product of zinc or bismuth salts of sulfodehydroabietic acid. The resultant salts can used to prepare medicine for treating digestive canal ulcer and gastritis.

The invention provides a method for detecting an annual ring of a desert plant haloxylon. According to the method, the annual ring of the haloxylon can be accurately measured, and the method specifically comprises the following detection steps: A, detecting a haloxylon standard sample, namely taking a haloxylon trunk growing in desert and gobi, cutting a flake sample, and polishing the sample to be smooth for later use; B, coating an alkaloid color developing agent on the sample, and acquiring the annual ring data after a clear annual ring appears on the sample surface. Alkali in the haloxylon is combined with the alkaloid color developing agent to present brownish red; the alkaloid color developing agent is an aqueous solution of bismuth salts and acids, wherein the content of bismuth element is 0.0001-0.04mol / L, and the concentration of hydrogen ion is 1.3-3.5mol / L. According to the detection method, chromatic aberration occurs in the trunk section, and the annual ring of the haloxylon can be clearly read out under a microscope.

The invention discloses a stannic oxide matrix composite solid catalyst suitable for preparing allantoin and a preparation method thereof. The preparation method includes the following steps of: 1) mixing tin salts, bismuth salts, cobalt salts, starch and hydrochloric acid solution, adding alkali into the system and performing ultrasonic oscillation, filtering and taking a filter cake, standing and drying to obtain a reaction product; 2) calcining the reaction product to obtain a tin dioxide matrix composite solid catalyst suitable for preparing allantoin. The composite solid catalyst has excellent catalytic efficiency for the synthesis of allantoin, and the preparation method has the advantages of simple process and readily available raw materials.

The invention relates to a sensitizer for radiotherapy and its preparation method and application, belonging to the field of nanomaterial chemistry and biochemistry, and solves the problem that the existing radiotherapy sensitizer cannot improve the hypoxic state in the tumor microenvironment, and radiotherapy is not sensitive , The amount of radiation dose is large, and the problem of large damage to normal tissues. The molecular formula of the sensitizer used in radiotherapy is BiO 2‑x , there are oxygen defects in the molecular structure, and the raw materials for the preparation of the sensitizer include alkali metal hydroxides and bismuth salts. The preparation method of the sensitizer comprises: dissolving alkali metal hydroxide and bismuth salt, stirring to obtain a solution; transferring the solution to a reaction container, heating, and reacting for a period of time. BiO of the present invention 2‑x It can be used as a sensitizer for radiosensitization of tumors, and achieves a very good inhibitory effect on tumors at a lower radiation dose.

The invention discloses an eggshell-shaped porous Bi 4 o 5 Br 2 Preparation methods of nanomaterials. The present invention adopts sonochemical technology and heat treatment two-step process to prepare eggshell-shaped porous Bi 4 o 5 Br 2 nanomaterials. First, soluble bismuth salt, cetyltrimethylammonium bromide and deionized water are used as raw materials, and the precursor compound is prepared by "one pot" ultrasonic chemical reaction after fully stirring and dissolving; then the precursor compound is annealed Heat treatment, thus producing eggshell-like porous Bi 4 o 5 Br 2 nanomaterials. Eggshell-shaped porous Bi of the present invention 4 o 5 Br 2 Nanomaterials have a hollow hierarchical structure, similar to eggshells, without agglomeration, and good dispersion. The diameter of the open end is between 500 and 800nm, and the thickness of the shell is about 20nm. There are a large number of pores on the surface, and the specific surface area is large. The invention does not use an organic solvent, and the process is clean and friendly; the prepared nanometer material can be used in the fields of visible light catalysis, antibacterial and the like.

The invention discloses a method for rapidly preparing an ultra-thin epitaxial bismuth ferrite film based on a microwave hydrothermal method. The preparation process of the method is to firstly clean a single crystal substrate with a perovskite structure through oxygen plasma to obtain an activated bismuth ferrite film. surface, and then put the substrate in a custom-made polytetrafluoroethylene mold, put it into the reaction kettle, and then add it to the suspension mixed with iron salt, bismuth salt and potassium hydroxide mineralizer, microwave heating reaction After 25 minutes, the substrate was removed, and after ultrasonic cleaning and drying with dilute nitric acid, ethanol and deionized water, an ultra-thin epitaxial bismuth ferrite film was obtained. 001) direction epitaxial structure.

The object of the present invention is to provide a method for synthesizing bismuth oxycarbonate nanosheets by solid-phase chemical reaction at room temperature. The method uses cheap raw materials and adopts a simple operation process to synthesize bismuth oxycarbonate nanosheets through solid-phase chemical reaction at room temperature. . The invention uses solid metal bismuth salt and solid basic carbonate as reactants, and synthesizes bismuth oxycarbonate nanosheets through solid phase chemical reaction at room temperature. The invention is based on solid-phase chemical reaction, adopts cheap and easy-to-obtain raw materials, and undergoes chemical reaction at room temperature to prepare bismuth oxycarbonate nanosheets. The preparation method is simple, the product yield is high, the environment is friendly, and the characteristics such as easy realization of mass production all make the present invention have extremely broad application prospects.

The invention discloses a preparation method and application of a single-phase bismuth titanate nano-material. The single-phase nano-material with the formula Bi20TiO32 which can not be easily obtained through conventional synthesis is prepared in a supercritical method with soluble bismuth salts and titanate as main raw materials, the crystalline state of the nano-material is good, and the imageobtained by the transmission electron microscope shows that the nano-material is of a sheet-shaped nano structure with holes. The method for synthesis of the single-phase Bi20TiO32 nano-material has the advantages of low cost, mild reaction conditions, high yield, easy large-scale production in the industry and the like. The Bi20TiO32 nano-material obtained in the method shows high photocatalyticactivity in the experiment of catalytic degradation of common organic pollutants under the sunlight. Moreover, the catalyst has high regenerability and still has good catalytic performance after being repeatedly used for eight times. Therefore, the catalyst has high industrial practicality.

The invention belongs to the technical field of preparation of inorganic nanometer materials and environmental materials, and relates to a method for preparing bismuth trioxide microspheres, in particular to a solvothermal method for preparing bismuth trioxide microspheres and its application. A solvothermal method for preparing bismuth trioxide microspheres. The technical scheme is to dissolve soluble bismuth salts in ethylene glycol, soluble indium salts and urea in absolute ethanol, and mix them uniformly with ultrasonic stirring, then undergo solvothermal reaction The precursor is obtained, and the precursor is prepared by high-temperature roasting after being centrifugally washed and dried. Bismuth trioxide (Bi2O3) microspheres with relatively uniform morphology were prepared by solvothermal reaction by liquid phase method at low temperature. Applying the bismuth trioxide microspheres prepared by the above method to the photodegradation of tetracycline-containing wastewater has the advantages of good chemical stability and the like. The invention has simple process and good reproducibility, and the raw materials used meet the requirements of environmental friendliness and are convenient for batch production.

The present disclosure relates to a hair treatment agent for reducing and / or avoiding bleeding out and / or fading of artificially produced hair colours with a pH in a range of from about 3.5 to about 5 containing—relative to the total quantity of hair treatment agent—a) from about 0.01 to about 10 wt. % of a polyvalent metal salt, wherein the metal salt is selected from the group of strontium salts, zirconium salts, hafnium salts, titanium salts, tin salts, aluminium salts, bismuth salts, lanthanum maleate, lanthanum chloride and mixtures thereof andb) from about 0.01 to about 10 wt. % of an organic acid selected from the group of tartaric acid, citric acid, maleic acid, fumaric acid, salicylic acid, lactic acid, malic acid, amino acids and mixtures thereof.

The invention relates to a nanometer zinc oxide-bismuth oxide composite photocatalyst with visible light response and a preparation method thereof. The composite is formed by compounding nanometer zinc oxide, bismuth oxide and graphene oxide at a mass ratio of 1: 0.05-1: 0-2. The preparation method comprises the steps of: respectively adding water-soluble zinc salts, bismuth salts and urea in an aqueous solution; after a co-precipitation reaction, centrifuging, washing, drying and roasting products; then placing the reaction products in an ultrasonically dispersed grapheme oxide aqueous solution to be heated and stirred for a reaction; after the reaction is finished, centrifuging, washing and drying the products to obtain the zinc oxide-bismuth oxide composite photocatalyst. The zinc oxide-bismuth oxide composite photocatalyst disclosed by the invention has better application prospect and economic benefits in the aspect of sewage treatment.

The invention relates to a bismuth base (bismuth selenide, bismuth telluride) hydrogen storage material and a preparation method thereof, relating to low temperature liquid phase synthesis of bismuth base material and the application thereof on hydrogen storage, lithium storage and electrode material. The invention is characterized in that water is taken as solvent, bismuth salts such as bismuth nitrate, bismuth chloride and the like as a bismuth source, and water-soluble tellurium (selenium) acid salts (such as sodium tellurite, selenium substituted sodium sulfate, sodium selenite) or tellurium (selenium) acids (such as orthotelluric acid, tellurous acid and selenous acid) as a tellurium source (selenium) source; proper coordination agents (such as nitrilotriacetic acid, hexamethylene diamine tetraacethyl and the like) and reducing agents (such as vitamin C, sodium borohydride and the like) are added for liquid phase reaction synthesis at the low temperature of 60-80 DEG C. The bismuth selenide crystal grains prepared by the invention take on flower shapes with the sphere diameter of 1-6mum, and the bismuth telluride crystal grains take on sheet shapes with nanometer diameter; the hydrogen storage performance reaches over 100mAh.g<-1>. The method has the advantages of cheap raw material, simple technique, convenient operation, easy mass production, etc.

The invention discloses a square hole-shaped structure Bi 3 O 4 Preparation method of Br single crystal nanoring photocatalytic material. Using soluble bismuth salts and bromine-containing compounds as the main raw materials, Bi with a square pore structure was prepared by solvothermal method through the control of two surfactants. 3 O 4 Br single crystal nanoring photocatalytic material. Scanning electron microscopy image shows the synthesized square pore-like structure Bi 3 O 4 The microstructure of the Br single crystal nanoring is a multi-layer Bi 3 O 4 A relatively regular square hole-like structure formed by the accumulation of Br sheets. The square hole structure Bi prepared by the present invention 3 O 4 The Br single crystal nanoring photocatalytic material can absorb visible light well, and has shown high photocatalytic activity in experiments that simulate visible light oxygen production and degradation of salicylic acid and methyl orange. The square hole structure Bi synthesized by the present invention 3 O 4 The method of Br single crystal nanoring photocatalytic material is simple, the synthesis conditions are mild, and it is conducive to large-scale industrial production.