50 results about "Methylthionine Chloride" patented technology

The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.

The invention discloses a method for preparing a bifunctional modified cellulose adsorbing agent from peanut shells and application of the method. The method comprises the following preparation steps of: washing, drying and crushing waste peanut shells, which are taken as raw materials, and removing flavochrome, hemicellulose and xylogen from the crushed peanut shells so as to obtain peanut shell cellulose; and performing surface functional modification on the materials through substitution and amidation further so as to finally obtain the amino and carboxy bifunctional modified peanut shell cellulose adsorbing material. The product is powdery and light brownish yellow, and the particle size of the product is 1.5-2.5 microns. The bifunctional modified peanut shell cellulose adsorbing material has a good adsorption effect for excessive heavy metals such as copper, chrome and mercury, phosphate, methylthionine chloride dye, and the like in water. The adsorbing agent is simple in preparation method, low in cost, cheap, easily available, good in biological compatibility and environment-friendly, contains a great deal of functional chelation groups, can realize simultaneous adsorption and removal of negative ions and positive ions, and has the advantages of being recyclable and the like.

The invention relates to a method for preparing active carbon from rice straw. The method comprises taht: (1) the collected rice straw is subjected to alkali cleaning, cleaned to neutrality, dried, and cut or pulverized; (2) the rice straw is added into an activator solution, evenly stirred, soaked for 12 to 24 hours, subjected to solid-liquid separation, cleaned and dried; (3) the rice straw prepared in step (2) is put in a barrate type oven and pre-oxygenated for 1 to 2 hours; (4) the pre-oxygenated rice straw is put in a tube-type carbide furnace, heated for temperature rise under the protection of nitrogen gas, and activated; and (5) the activated rice straw is washed by water till pH is between 6.5 and 7.5, and dried at 105 DEG C to prepare the active carbon. The active carbon prepared by the method has good adsorption performance; the adsorptive value of methylthionine chloride reaches between 200 and 300 mL/g; and the preparation process is simple, economical and environment-friendly, meets requirement of clean production and circular economy development, and has good industrial application prospect.

The invention discloses a dried persimmon-shaped visible-light-driven photocatalyst BiOBr and a preparation method thereof. The inventor adopts a low-temperature solvothermal method, controls the morphology of a halogen-bismuth-oxide visible-light-driven photocatalyst by controlling the dosage of a bismuth source and a bromine source and adding a structure guiding agent, and successfully prepares the novel efficient visible-light-driven photocatalyst BiOBr with novel and special morphology, the dried persimmon shape, for the first time. The preparation method disclosed by the invention is simple in overall production technology, easy to operate, low in synthesis temperature, high in reaction yield (89%), friendly to environment and low in cost, and accords with the requirements of practical production, and the raw materials are readily available. The visible-light-driven photocatalyst disclosed by the invention has good visible-light catalytic activity, can completely degrade a plurality of organic pollutants (such as methylthionine chloride and methyl orange) within a short period of time under irradiation of visible light, is small in light corrosivity, good in reusability and large in market potential, can be applied to industrial production, and especially has good application value in photocatalytic decomposition of organic pollutants by solar energy.

The invention relates to a manufacturing method for an active carbon/tourmaline composite material and a product manufactured according to the manufacturing method. The active carbon/tourmaline composite material product which has an adsorption value larger than 100 ml/g to methylthionine chloride and an adsorption value larger than 950 mg/g to iodine can be obtained by mixing the following raw materials in percentage by weight: 53-97 percent of an active carbon precursor raw material, 1-34 percent of an organic matter assistant forming agent, 1-10 percent of tourmaline powder and 1-3 percent of a natural clay mineral raw material and then performing forming, drying, carbonization and activation. The product can be made into various shapes, is widely applied to adsorbing and degrading of formaldehyde, benzene and nitric oxides in air and toxic organic matters and heavy metal ions in a water body and has a wide application prospect.

The invention relates to a preparation method for magnetic nanometer microballoon photocatalysis composite materials. The preparation method includes steps of (1) preparing Fe3O4 magnetic nanometer particles; (2) preparing Fe3O4/SiO2 coating magnetic nanometer microballoons from the Fe3O4 magnetic nanometer particles by the aid of a steam phase method; (3) adding the Fe3O4/SiO2 coating magnetic nanometer microballoons into absolute ethyl alcohol, adding tetra-n-butyl titanate under ultrasonic treatment, transferring solution into a steam phase device to be used as solid phase after continuous ultrasonic treating, and staying the solution at the temperature ranging from 100 DEG C to 200 DEG C for 8 hours to 14 hours; washing and separating solid phase products; and finally drying the solid phase products in a vacuum manner, so that the magnetic nanometer microballoon photocatalysis composite materials are obtained. The preparation method is simple in operation and low in cost, and can realize scale production. The obtained magnetic nanometer microballoon photocatalysis composite materials are high in magnetic particle content, large in saturation magnetic moment and fine in photocatalytic performance, and dye molecules for simulating pulmonary edema, such as acid red, methylthionine chloride and the like, can be effectively degraded.

The invention relates to a preparation method of titanous auto-doping anatase titanium dioxide monocrystalline. The method comprises the following steps of oxidation gelatinization and solvothermal of a bivalent titanium source so as to form nano-crystalline, product washing and drying based on a principle of forming nano monocrystalline by solvothermal reaction. Compared with the traditional titanous auto-doping anatase titanium dioxide monocrystalline, the titanous auto-doping anatase titanium dioxide monocrystalline obtained by the method provided by the invention is even in size distribution and does not contain other foreign elements, and the introduction of titanous defect endows a material with an excellent visible light catalytic performance. The method has the advantages of operation simplicity, mild conditions, simple technology, high titanous concentration, controllable doped concentration, high visible light absorbance and the like; the prepared titanous auto-doping anatase titanium dioxide monocrystalline has the efficiency of degrading industrial organic dye methylthionine chloride under visible light better than that of P25, and has a wide application prospect in the fields of industrial waste water treatment by inorganic catalysts and the like.

The invention discloses a floating type BiVO4/floating bead composite photocatalyst and a preparation method and application thereof. According to the floating type BiVO4/floating bead composite photocatalyst, floating beads are used as a carrier, and BiVO4 granular films are loaded on surfaces of the floating beads. The preparation method comprises the following steps of: mixing an acetylacetone solution of isopropoxy vanadium oxide and a glacial acetic acid solution of bismuth nitrate at room temperature, and stirring vigorously to form black green sol; and adding coal ash floating beads for stirring, loading, immersing, evaporating to dryness in water bath, and calcining to obtain the floating type BiVO4/floating bead composite photocatalyst. Tests indicate that the floating type BiVO4/floating bead composite photocatalyst can absorb visible light within the range of wavelength of between 200 and 550 nanometers, and is a visible light responded photocatalyst; and compared with the common TiO2 photocatalyst, the floating type BiVO4/floating bead composite photocatalyst has the advantage that the BiVO4/floating beads can improve the utilization rate of solar energy. In addition, compared with TiO2/floating beads, the BiVO4/floating beads can improve the degradation efficiency of methylthionine chloride obviously under the visible light.

The invention relates to a photocatalyst, which relates to a visible light responded AgX/Ag2CO3(X=C1, I)composite photocatalyst and its preparation method. The preparation method comprises the following steps: placing silver carbonate in an aqueous solution and ultrasonically dispersing to obtain a dispersion liquid of silver carbonate; fully dissolving halogenated ionic liquid in deionized water, heating in water bath and uniformly stirring, dropping the halogenated ionic liquid in the dispersion liquid of silver carbonate, continuously stirring for a while after dropping; after the reaction is completed, cooling to the room temperature, washing the products obtained in the reaction, and drying to obtain the photocatalyst. The preparation method has the advantages of simple process, and can effectively degrade a colored dye (methylthionine chloride) under visible light irradiation. The method uses good control synthesis function of the ionic liquid, better disperses AgX on an Ag2CO3 matrix, so that a purpose of enhancing the degradation performance of the photocatalysis.

The invention relates to taro starch with high adsorbability and a preparation method thereof. The mean particle size < of the taro starch with high adsorbability is 2 microns; the whiteness > of the taro starch is 95%; the specific surface area > of the taro starch is 4.0m<2>/g; the adsorption rate > on methylthionine chloride of the taro starch is 94%. The taro starch can be applied to a plurality of fields such as healthcare foods, medicines, hygienic products, agricultures and chemical industry. By adopting preparation method disclosed by the invention, the raw taro starch is taken as a raw material, and the taro starch with high adsorbability is prepared by the processes of deproteinization, degreasing, size mixing, ultrasonic pretreatment, enzymolysis of composite enzyme liquid, termination reaction and freeze drying. The surfaces of taro starch particles are induced to generate small pits by using ultrasonic pretreatment, so that the sensitivity of the taro starch on amylase is improved, and the enzyme reaction sites are increased. By adopting the freeze-drying method, the taro starch particles are loose, easy to crush, and uniform in particle size, and the whiteness is improved.

The invention discloses graphene-metal-poly(m-phenylenediamine) plural gel as well as quick preparation and application methods thereof. In the method, metal ions, organic monomers and graphene oxide are taken as raw materials, a high-activity complex comprises the metal ions and the organic monomers, and the graphene-metal-poly(m-phenylenediamine) plural gel is obtained by performing in-situ reduction oxidation on graphite so as to cause graphene gelatinization and then performing one-step quick hydrothermal. According to the method, the redox characteristics of the raw materials are fully used, so that a polymerization initiator and a gel crosslinking agent do not need to be added; the preparation method is simple and fast (1-2 hours); the monomer conversion rate is higher than or equal to 99.0 percent; the synthesis process is clean, and the cost is low; the plural gel can be used for high-efficiency dye adsorption; the static saturated adsorption (methylthionine chloride) capacity is up to 615mg/g<-1>.

The invention discloses a method for preparing activated carbon by carrying out microwave irradiation on banana straws. The method comprises the steps of: cutting air-dried banana straws into small sections, soaking with zinc chloride/calcium chloride mixing solution, fishing up and drying without water drops, performing microwave irradiation, soaking with acid solution, taking out for draining, bleaching with deionized water and drying, cooling to room temperature, and crushing to obtain activated carbon. The activated carbon prepared by using the method achieves the methylthionine chloride decolorizing capacity of 16-25mL/0.1g which is greatly higher than that of the national standard high-quality activated carbon. Furthermore, wastes of agricultural products are utilized, so that the added value of the agricultural products can be improved, the environment protection pressure can be effectively reduced, and the method is simple in technique, short in flow and favorable for popularization.

The invention discloses novel application of a di-perylene bisimide compound used as a photosensitizer, wherein the di-perylene bisimide compound is shown in a formula I. The inventor considers the property of the di-perylene bisimide as the photosensitizer from four following aspects of: 1, detecting the generation of singlet oxygen; 2, detecting time evolution trends of the triplet of a singlet oxygen precursor DiPBI respectively in aerobic condition and anaerobic condition; 3, quantitatively measuring relative quantum yield of the singlet oxygen generated by the DiPBI compound; and 4, inspecting the photostability of the DiPBI compound. Tests prove that the di-perylene bisimide compound has excellent photoactivating capability, and presents better photostability, can durably develop photoactivating function. Thus, compared with other photosensitizers (such as porphyrins, methylthionine chloride and the like), with remarkable advantages, the di-perylene bisimide compound has wide application prospect.

The invention relates to a preparation method of magnetic carbon nanocomposite. Fe3O4 nano particles are firstly prepared by a coprecipitation method and then are modified by polyvinyl alcohol; urea and formaldehyde as monomers are pre-polymerized under an alkaline condition, and then the modified Fe3O4 nano particles are subjected to polycondensation coating under an acidic condition, so that a urea resin-coated Fe3O4 composite is obtained; a product is subjected to suction filtration, is washed to be neutral, and is vacuum-dried; the obtained composite is carbonized at 600 DEG C under the protection of N2, so that the magnetic carbon nanocomposite is prepared. The prepared magnetic carbon nanocomposite has a good adsorption effect on methylthionine chloride; simple and fast separation can be realized by magnetism.

The invention belongs to the technical field of wastewater treatment, and concretely relates to a preparation method of a methylthionine chloride adsorbent. The preparation method comprises the following steps of smashing shells, sieving, adding hydrochloric acid for curing, then washing with water to neutral, and drying to obtain a drying material for standby use; feeding the drying material into graphene oxide dispersion liquid, uniformly stirring, then adding zinc chloride, carrying out hydrothermal reaction, cooling, adding glucose, uniformly stirring, and then freeze drying; carrying out ladder temperature heating under a nitrogen environment, and then cooling to obtain the adsorbent. According to the adsorbent provided by the invention, raw materials and a preparation process are friendly to the environment, and the prepared adsorbent has stable performance, large specific surface area, and high removal rate on methylthionine chloride in printing and dyeing wastewater.

The present invention prepares nitrogen-doped mesoporous titania photocatalyst material with titanium alkoxide and thiourea as material to synthesize Ti-base precursor and through decomposing the precursor in furnace with ammonia atmosphere at 450-550 deg.c for 6-8 hr. The formation of nano titania crystal grain and the doping with nitrogen element are completed simultaneously, and N atom replaces O atom in TiO2 lattice effectively to form the doping energy level. The prepared material has titania as base, c anatase rystal phase, nitrogen content of 1.6-7.6 wt%, and mesopore size of 1-8 nm. The nitrogen-doped mesoporous titania photocatalyst has UV-vis absorption spectrum beginning at 735 nm, is used as photocatalyst and can degrade 90 % of methylthionine chloride in 4 hr.

The invention discloses a photocatalytic degradation organic matter pollutant catalyst TiO2/Co4S4.23Se3.77 as well as a preparation method thereof. Under the induction of visible light, 0.05g of catalyst 30%TiO2/Co4S4.23Se3.77 can adsorb 87% of 50ml of methylthionine chloride with the concentration of 10mg/L in dark reaction for 30 minutes, and the methylthionine chloride can be degraded completely in the radiation by visible light within 40 minutes. The photocatalytic degradation organic matter pollutant catalyst TiO2/Co4S4.23Se3.77 as well as the preparation method thereof, which are provided by the invention, have the advantages that a heterojunction photocatalyst is synthesized by a new method combining a high-temperature solid phase synthesis method with a sol-gel method, is simple in operation, is low in production cost, is high in synthesis yield and purity, and meets the requirement of expanded production.

The invention provides a high-efficient detergent for an automotive windscreen glass surface, and relates to the field of glass cleaning. The detergent, is prepared from the following raw materials: sodium dodecyl benzene sulfonate, a surface active agent, essence, palm wax, sodium molybdate, boric acid, triethanolamine, naphthenic oil, sodium silicate, sodium citrate, span, phenol, kieselguhr, butyl stearate, methylthionine chloride, monopotassium phosphate, a plant extracting solution, sodium citrate, ethyl alcohol, acetone, dipropylene glycol monomethyl ether, a defoaming agent, an antifreeze agent and an appropriate amount of deionized water. The detergent cannot be frozen to damage automobile facilities when the outside temperature is lower than minus 20 degrees, not only can be usedfor effectively clearing stains on the glass surface, but also can be beneficial to improving the glossiness of the glass surface, has the characteristic of high cleaning efficiency, and also has theeffects on preventing freezing and increasing the degree of finish.

The invention discloses a preparation technology of a composite nanodot based on a carbon nanodot, and application of the composite nanodot in the field of fluorescence imaging. According to the structure of the composite nanodot, a main component is the carbon nanodot which is the material with the quite good biocompatibility, a load component is methylthionine chloride, the particle diameter ranges from 100 nanometers to 500 nanometers, and the potential ranges from -30 mV to 10 mV. The preparation technology is safe, fast, easy and convenient to operate, the cost is low, industrial production is easy to achieve, and the technology is general for preparing the composite carbon nanodot. On the basis that the composite carbon nanopot has the good biocompatibility and safety and is high in fluorescence imaging sensitivity, the composite carbon nanopot is expected to be more widely applied in the fields of biomedical imaging, targeting diagnosis and therapy, medicine screening and optimization, in-vivo marking and tracking and the like, and has the potential value in the aspects of individual medical treatment and the like.

The invention discloses a dye absorption agent and preparation method and application thereof. The dye absorption agent is prepared from, by weight, 22-30 parts of illite, 3-7 parts of oxidized polyethylene, 2-6 parts of acetylacetone, 1-5 parts of cobalt nitrate, and 9-17 parts of 3-hydracrylic acid. In the preparation method, the illite and oxidized polyethylene are blended and grinded, 3- hydracrylic acid, acetylacetone and cobalt nitrate are used in the treatment, dye absorption agent is prepared through ultrasound irradiation; the dye absorption agent absorbs heavy metal, different types of dyes as well as other organic pollutant, has strong adsorption ability for dye material, is non-toxic for human, is non-corrosive, has stable performance, cleans easily, causes no second time pollution to water. The dye absorption agent prepares and operates easily, the cost of the dye absorption agent is low, the efficiency of absorption is high; the dye absorption agent is environmentally friendly, facilitates industrialization production, suits for treating all the wastewater polluted by organic dyes, including direct scarlet, cationic brilliant red, acid brilliant scarlet, methylthionine chloride, neutral red, viola crystallina, helianthin B and other organic dyes.

The invention provides a preparation method and application of catalyst for treating industry dye wastewater. According to the preparation method, a KIT-6 used as a template and metal salts (Fe(NO3)3.9H2O and Mg(NO3)2.6H2O) are refluxed in methylbenzene at 70 DEG C for 6h to form a system, then the system is dried, heated to be at 600 DEG C to be roasted for 3h at 1 DEG C/min heating rate, the KIT-6 template is removed by 2M NaOH solution, the system is dried in a vacuum drying box, and the catalytic performance of the prepared catalyst is checked by degradation of 60mg/L of methylthionine chloride solution. The catalyst has simple preparation method, low cost, high catalytic activity and high stability, cannot cause secondary pollution and is suitable for treatment of multiple kinds of industry dye wastewater.