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43results about How to "Promote catalytic oxidation" patented technology

High-property absorption and wave absorption type catalyst for VOCs (Volatile Organic Chemicals) catalytic oxidation and preparation of catalyst

The invention provides a high-property absorption and wave absorption type catalyst for VOCs (Volatile Organic Chemicals) catalytic oxidation. The high-property absorption and wave absorption type catalyst has a structural formula: a Cu-Mn-Ce / TiO2-molecular sieve or a CNDs-Cu-Mn-Ce / TiO2-molecular sieve, wherein CNDs serve as a modifier; Cu and Mn serve as catalytic activity components; Ce serves as a promoted catalytic metal; a TiO2-molecular sieve serves as a carrier. The invention further provides a preparation method of the catalyst. According to the catalyst and the preparation method of the catalyst provided by the invention, the treatment cost is greatly reduced and energy is utilized at maximum through the advantages of the combination of a plurality of materials, so that the relatively good VOCs catalytic oxidation effect can be realized under the microwave irradiation.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Ferroferric oxide-carbon and nitrogen composite and preparation and application thereof

The invention provides a high-performance ferroferric oxide-carbon and nitrogen composite, and belongs to the technical field of composite materials. The composite is prepared by uniformly doping nano ferroferric oxide in a polypyrrole matrix. Because the composite has high activity and large specific surface area, and N atoms doped on the surface can immobilize active grains of a catalyst, and afuel cell catalyst prepared from the composite serving as a carrier has synergism with nanoparticles loaded on the catalyst to promote electrode catalysis reaction so as to improve the catalysis performance of the catalyst. Compared with the traditional catalyst prepared from a C carrier, the fuel cell catalyst has better catalysis performance and higher stability.
Owner:NORTHWEST NORMAL UNIVERSITY

Supported type Au catalyst containing organic polymer electronic auxiliary

The invention discloses a supported type Au catalyst containing an organic polymer electronic auxiliary, a preparation method and an application of the catalyst. The supported type Au catalyst is a high-dispersion supported type catalyst which takes TiO2 as a carrier, polyaniline as an electron donor and an Au nano particle as an active component. According to the supported type Au catalyst, the visible light CO catalysis oxidation property of the Au catalyst at room temperature is improved from the angle of the electronic auxiliary, a TiO2-PANI supporter is prepared through in-situ polymerization PANI (Polyaniline) on a TiO2 semiconductor oxide supporter, subsequently Au nano particles with visible light LAPR response are subjected to deposition-precipitation and supporting, and finally visible light illumination is introduced into a reaction system of CO catalysis oxidation. The method for introduction and photo-thermal coupling of the PANI electronic auxiliary is simple and feasible, and the application of the auxiliary in desorption of CO in the air, the removal of CO in hydrogen-enriched atmosphere in a fuel battery and the conversion of CO2 is facilitated.
Owner:FUZHOU UNIV

CeO2@MnOx low-temperature SCR flue gas denitrification catalyst as well as preparation method thereof and application thereof

InactiveCN106732536AIncrease contact area and synergistic effectIncrease specific surface area and acidityGas treatmentDispersed particle separationReduction ActivityFlue gas
The invention discloses a CeO2@MnOx low-temperature SCR flue gas denitrification catalyst as well as a preparation method thereof and an application thereof. An MnOx nanoparticle prepared through a precipitation method is taken as an inner core, and CeO2 is packaged on the outer layer of the MnOx nanoparticle through an in-situ liquid-phase deposition method, and roasting is performed to prepare the CeO2@MnOx low-temperature SCR flue gas denitrification catalyst with a core-shell structure, wherein in the prepared CeO2@MnOx low-temperature SCR flue gas denitrification catalyst, a mass ratio of MnOx to CeO2 is 1 to (0.4-1.2). The CeO2@MnOx low-temperature SCR flue gas denitrification catalyst has the core-shell structure, greatly improves oxidization-reduction capacity of an active component MnOx, and has excellent NOx catalytic reduction activity at a temperature of 110-200 DEG C.
Owner:SOUTH CHINA UNIV OF TECH

Limestone-gypsum wet-process flue gas desulfurization additive

InactiveCN104941429AHigh reactivityWill not affect the enhanced desulfurization effectDispersed particle separationOrganic acidMass transfer resistance
The invention belongs to the technical field of wet-process flue gas desulfurization and particularly relates to a limestone-gypsum wet-process flue gas desulfurization additive. The additive is composed of biomass pyrolyzed and gasified tar washing liquid or is a composite additive which is obtained by combining and mixing the tar washing liquid with any one or more of organic acids, organic acid salts, inorganic metal salts, an active agent and an oxidant in a traditional wet-process desulfurization additive. According to the additive provided by the invention, the solid-liquid mass transferring resistance in desulfurization slurry can be effectively reduced and the pH value of the slurry is stabilized, so that the desulfurization efficiency is improved; and furthermore, the composite additive containing the oxidant can accelerate the catalytic oxidation of a wet-process desulfurization product (calcium sulfite), so that the reaction speed of limestone in the slurry is accelerated and the quality of the wet-process desulfurization byproduct, namely gypsum, is improved.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Novel limestone-gypsum wet flue gas desulfurization additive

ActiveCN104941428AHigh reactivityWill not affect the enhanced desulfurization effectDispersed particle separationCalcium sulfiteActive agent
The invention belongs to the technical field of wet flue gas desulfurization and in particular relates to a novel limestone-gypsum wet flue gas desulfurization additive which is prepared from vinegar liquid subjected to biomass pyrolysis carbonization, or is a composite additive prepared by mixing the vinegar liquid with any one or more of organic acid, organic acid salt, inorganic metallic salt, an active agent and an oxidizing agent in a traditional wet desulfurization additive. The additive disclosed by the invention has the effects of effectively reducing soil-liquid mass transfer resistance in desulfurization slurry and stabilizing the pH value of the slurry so as to improve the desulfurization efficiency; furthermore, the additive containing the oxidizing agent can be used for accelerating the catalytic oxidation of a wet desulfurization product (calcium sulfite) so as to increase the reaction rate of limestones in the slurry and improve the quality of a wet desulfurization by-product (gypsum).
Owner:无锡华骏宏科技有限公司

Core-shell structure molecular sieve catalyst for cooperatively controlling NO and methylbenzene and preparation method

ActiveCN110052287AMaintain performance characteristicsKeep original featuresGas treatmentMolecular sieve catalystsMolecular sieveActive component
The invention discloses a core-shell structure molecular sieve catalyst for cooperatively controlling NO and methylbenzene and a preparation method. The molecular sieve catalyst comprises a Cu-SAPO-34molecular sieve core and a CeO2 shell, wherein the Cu-SAPO-34 molecular sieve core is formed by loading CuO on an SAPO-34 molecular sieve, and the CeO2 shell is self-assembled on the surface of the Cu-SAPO-34 molecular sieve core. The catalyst comprises, in weight percent, 1%-3% of CuO, 15.0%-30% of CeO2 and the balance SAPO-34. The preparation method includes the steps: preparing Cu-SAPO-34 by an ion exchange method; wrapping the molecular sieve with the CeO2 by a self-assembly method; performing drying and inert nitrogen calcining to prepare the catalyst. According to the catalyst, active components can be more effectively dispersed, the hydrothermal stability of the catalyst can be improved, sulfur poisoning of the catalyst can be effectively prevented, the methylbenzene can be cooperatively controlled in denitration, and the hydrocarbon poisoning resistance of the catalyst is improved.
Owner:XIANGTAN UNIV

Load type honeycomb ceramic catalytic material and preparation method thereof

The invention provides a load type honeycomb ceramic catalytic material which is prepared from, by weight parts, 100-200 parts of honeycomb ceramics, 0.6-1.4 parts of manganese salt, 0.1-12 parts of ferric salt, copper salt, cerium salt or zinc salt, 4-18 parts of catalyst carrier, 0.5-14 parts of nanoscale anion powder, 0.45-3 parts of inorganic binder, 0.05-1.2 parts of organic binder, 0.2-1 part of surfactant and 60-90 parts of water. The load type honeycomb ceramic catalytic material is low in cost and can efficiently remove formaldehyde and purify air under conditions of indoor temperature, high humidity and large blast capacity. The invention further provides a method for preparing the load type honeycomb ceramic catalytic material. The method is simple, convenient to use, low in production cost and favorable for achieving industrial production and large-scale popularization.
Owner:JIANGXI SHINCO ENVIRONMENTAL PROTECTION CO LTD

Photocatalytic flue gas mercury removal device in power plant chimney

PendingCN109499359AIncreased contact area and dwell timeIncrease adsorption and photocatalytic reaction efficiencyGas treatmentDispersed particle separationSpider webProcess engineering
The invention relates to a photocatalytic flue gas mercury removal device in a power plant chimney. The mercury removal device comprises a shell, a UV lamp unit and a photo-catalytic reaction unit, wherein the UV lamp unit is arranged on the shell; the photo-catalytic reaction unit is arranged in the shell; the photo-catalytic reaction unit comprises multiple metal sheets; the metal sheets are arranged into a 'spider web' structure in a radial direction by taking the axis of the shell as the center; a catalyst is supported on the surface of the metal sheets. Compared with the prior art, the device has a large contact area with the flue gas, the flue gas and the nano photocatalyst can be in contact and react in more time, and the flue gas treatment efficiency can be effectively improved.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

Water-soluble oxidized chitosan and method for finishing fabric by using water-soluble oxidized chitosan

The invention discloses water-soluble oxidized chitosan and a finishing method of the water-soluble oxidized chitosan on a fabric. The water-soluble oxidized chitosan is prepared by the following steps: dissolving chitosan in a 1-carboxymethyl-3-methylimidazolium hydrogen sulfate aqueous solution, oxidizing C2 and C3 sites of the chitosan by sodium periodate under microwave radiation to generate aldehyde groups, and then oxidizing primary hydroxyl at C6 site of the dialdehyde chitosan in an ionic liquid by concentrated nitric acid-concentrated phosphoric acid to generate carboxyl. The water-soluble oxidized chitosan can be used for modifying fabrics. Compared with a traditional chemical cross-linking agent modified fabric, the method has the advantages that the grafting efficiency of the oxidized chitosan is high, the enzyme treatment condition is mild, the reaction process is simple, the fabric is crease-resistant, antibacterial, efficient and lasting, the fabric is comfortable to wear, and the requirements of people on lasting functional ecological textiles are met.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Wide-temperature-range dry flue gas denitrifying agent and preparation method thereof

InactiveCN110252313AWith wide temperature denitrification activityPromote catalytic oxidationGas treatmentHeterogenous catalyst chemical elementsManganeseCobalt
The invention discloses a wide-temperature-range dry flue gas denitrifying agent and a preparation method thereof. The flue gas denitrifying agent has a structure as aAO.bGxOy.mDxOy.nAl2O3, wherein A is one of barium, magnesium and calcium serving as group IIA metals, G is one of chromium, iron, cobalt and zinc serving as transition metals, and D is one of copper, manganese and silver. Calculated based on the total mass of a catalyst, the wide-temperature-range dry flue gas denitrifying agent comprises 28%-42% of AO, 30%-40% of GxOy, 10%-20% of DxOy and 8-12% of Al2O3. The dry flue gas denitrifying agent can be used for controlling the discharge of NOx in flue gases from an industrial boiler, a kiln, a coking coke oven and the like. The dry flue gas denitrifying agent has the advantage of realizing the ammonia-free efficient conversion of NOx within a relatively wide temperature range so as to be suitable for industrial application.
Owner:WUHAN KELIN FINE CHEM

Lanthanum-doped copper-manganese composite oxide catalyst and preparation method thereof

The invention discloses a lanthanum-doped copper-manganese composite oxide catalyst and a preparation method thereof. In the XRD diffraction spectrum of the catalyst, a diffraction peak of Cu1.5Mn1.5O4 spinel phase is contained, and no diffraction peaks of La and Mn2O3 are contained; in the XPS Cu 2p spectrum of the catalyst, two peaks at 933.3+ / -0.1 eV and 930.5+ / -0.1 eV are contained. More reactive oxygen and more active oxygen transport channels are resulted from existence of Cu1.5Mn1.5O4 and weak crystallization of MnOx, and the catalytic performance of the copper-manganese composite oxidecatalyst for VOCs can be improved further through La. The preparation method comprises the following steps: (1) dissolving a manganese salt, a copper salt and a lanthanum salt in water, carrying outwater bath for 0.1-1 h with a water bath temperature at 50-70 DEG C; (2) adding an ammonium salt solution to a pH value of 7.5-8.5, and keeping stirring for 1-3 hours; and (3) taking the precipitate,and then performing drying and sintering so as to obtain the lanthanum-doped copper-manganese composite oxide catalyst. The preparation method of the lanthanum-doped copper-manganese composite oxide catalyst has a simple process, easy control and volume production.
Owner:SICHUAN UNIV

Modified manganese oxide catalyst, preparation method and application thereof

The invention relates to a modified manganese oxide catalyst, a preparation method and application thereof. The catalyst is obtained by loading a transition metal element to manganese oxide serving asa carrier, is rich in surface oxygen vacancies on the surface, and has excellent activation capability on oxygen and nitric oxide, so that the catalyst provided by the invention has excellent catalytic activity. Also, the catalyst has excellent selectivity on CO2 during catalytic oxidation of soot particles, and the selectivity on CO2 is close to 100% in a catalytic reaction interval of 300-550DEG C.
Owner:NINGBO URBAN ENVIRONMENT OBSERVATION & RES STATION NUEORS CHINESE ACADEMY OF SCI +1

Modified Pd/BaCe catalyst and preparation method thereof

The invention relates to the technical field of catalysts, in particular to a modified Pd / BaCe catalyst and a preparation method thereof. Through a mechanical mixing method and by an oxide Al2O3, SiO2and TiO2 modified Pd / BaCe catalyst, the ignition and complete transformation temperature of methanol is reduced effectively, and the catalytic oxidation property of the catalyst to the methanol is improved. The specific surface area and the pore volume of the Pd / CeBaAl catalyst prepared by modification through Al2O3 are remarkably improved, adsorption of reactant molecules on the surface of the catalyst is facilitated, by large pore volume, diffusion of reaction molecules is facilitated, then catalytic reaction is facilitated, the modified Pd / BaCe catalyst has suitable surface basic sites andgood reducing property, and the deep oxidizability and resistance to CO inhibition of the methanol are improved favorably. The prepared modified Pd / BaCe catalyst is suitable for front-end purification of tail gas of vehicles with methanol fuel, unburnt methanol and an intermediate product which is generated by incomplete combustion of the methanol are converted into CO2 and H2 O, therefore, the service life of an automotive rear-end three-effect catalyst is prolonged favorably, and clean emission of tail gas is facilitated.
Owner:CHENGDU UNIV OF INFORMATION TECH

Sludge treatment device using catalytic wet oxidation method

The invention relates to a sludge treatment device using a catalytic wet oxidation method, and relates to the technical field of sludge treatment equipment, the device comprises a high-temperature high-pressurekettle and a sealing cover, the left side of the front surface of the high-temperature high-pressure kettle is provided with an electrothermal furnace, and the left side of the high-temperature high-pressure kettle is connected with an oxygen gas tank, the sealing cover is arranged at the upper end of the high-temperature high-pressure kettle, and the sealing cover is connected to the high-temperature high-pressure kettle through bolts, and the upper right side of the oxygen gas tank is inlaid with an air inlet pipe. The method has the advantages that: by rotating an agitator shaft in the high-temperature high-pressure kettle through a rotating shaft, aagitator rod can be driven to stir the sludge, so that the catalyst can be mixed with the sludge quickly and evenly, and the sludge can be fully and rapidly contacted with the oxygen. The catalytic oxidation of the sludge can be accelerated and the sludge is uniformly contacted with heat, so that the sludge can be quickly treated, and the organic matters and reductive inorganic matters in the sludge can be quickly oxidized to carbon dioxide and water and a small amount of solid residue.
Owner:佛山市弘峻水处理设备有限公司

Graphene composite material for removing formaldehyde and preparation method of graphene composite material

The invention provides a graphene composite material for removing formaldehyde and a preparation method of the graphene composite material. The preparation method comprises the steps: firstly, carrying out modification treatment on titanium oxycarbonitride by utilizing gamma-methacryloxypropyltrimethoxysilane to obtain modified titanium oxycarbonitride; then carrying out modification treatment onsilicon and boron co-doped graphene by utilizing 3-aminopropyltriethoxysilane to obtain modified graphene; and finally, carrying out mixing reaction on the modified titanium oxycarbonitride, the modified graphene and the modified silica gel to obtain the graphene composite material. The modified silica gel is obtained by carrying out modification treatment on silica gel by utilizing 3-aminopropyltrihydroxysilane. The graphene composite material can catalytically oxidize formaldehyde into harmless carbon dioxide and water at normal temperature, and formaldehyde can be thoroughly removed in a short time.
Owner:河南智川节能环保科技有限公司

Preparation method of 2, 3, 5-trimethyl benzoquinone (TMBQ)

InactiveCN102633614BFacilitate and control the rate of decomposition and oxygen productionCatalytic oxidation achievedQuinone preparation by oxidationOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic oxidationSolvent
The invention discloses a preparation method of 2, 3, 5-trimethyl benzoquinone (TMBQ), which comprises the following steps of: (1) mixing CuCl2 and / or CoCl2, ferric chloride and triethylamine hydrochloride, evenly stirring and preparing a composite catalyst; (2) dissolving trimethylolpropane (TMP) in an organic solvent and preparing a TMP organic solvent solution; and (3) adding the prepared composite catalyst into the TMP organic solvent solution, stirring, evenly mixing, heating until backflow, dropwise adding a hydrogen peroxide aqueous solution and then carrying out reaction for 2-8hours at the temperature of 20-80 DEG C, and cooling the reaction solution to room temperature; and finally obtaining the TMBQ product after separating and purifying. The preparation method of the 2, 3, 5- TMBQ adopts TMP catalytic oxidation for one-step synthesis of TMBQ, and is a green technology, the oxidizing agent and solvent which are adopted by the preparation method have the advantages of being low in toxicity and harmless, the composite catalyst has high activity, and the transformation rates of the TMP and the selectivity of the TMBQ are high.
Owner:HENAN UNIVERSITY

Treatment method of N-p-aminobenzoyl-L-glutamic acid medical intermediate wastewater

The invention discloses a treatment method of N-p-aminobenzoyl-L-glutamic acid medical intermediate wastewater, and belongs to the technical field of pharmaceutical wastewater treatment. The treatmentmethod comprises the following steps: 1, adjusting pH: adjusting the pH of raw wastewater to 2-6 to obtain wastewater A; 2, performing Fenton oxidation: adding a mixture of water-soluble ferrous saltand an aqueous hydrogen peroxide solution or the aqueous hydrogen peroxide solution into the wastewater A to obtain wastewater B, performing solid-liquid separation to obtain a supernatant of the wastewater B; 3, performing coagulating sedimentation: adjusting the pH of the wastewater B to 7.5-9, adding a flocculant to obtain a flocculent precipitate and wastewater C; and 4, performing electrocatalytic oxidation: sending the wastewater C to an electrocatalytic oxidation system and discharging water to obtain purified water. By the treatment method, treatment of the wastewater is achieved andthe wastewater is discharged after standards are met.
Owner:杭州胜于蓝环保科技有限公司

A kind of environment-friendly automobile exhaust gas treatment system and treatment method

The invention relates to the technical field of tail gas treatment, and discloses an environment-friendly automobile tail gas treatment system and a treatment method, wherein the environment-friendly automobile tail gas treatment system includes a cylinder body, one end of the cylinder body is connected with an intake pipe, and the cylinder body The other end of the cylinder is connected with an outlet pipe, and a honeycomb-shaped first carrier is installed in the cylinder for catalytic reduction of automobile exhaust, and a second carrier is installed in the cylinder for catalytic oxidation of automobile exhaust. A carrier is close to the air inlet pipe, and the second carrier is close to the air outlet pipe. In the environment-friendly automobile exhaust treatment system, when the exhaust gas enters the second carrier, the oxidation substrate in each oxidation unit in the second carrier will vibrate under the influence of the exhaust gas flow, and this vibration is easy to oxidize the solid particulate matter on the substrate Shock off, so as to avoid a large amount of solid particles from accumulating on the oxidation substrate, which is helpful to the catalytic oxidation of the exhaust gas by the second carrier.
Owner:宁波明讯实业有限公司 +1

Nano cerium manganese oxide/activated carbon composite material for room temperature oxidation of formaldehyde and preparation method thereof

The invention provides a nanometer cerium manganese oxide / activated carbon composite material for oxidizing formaldehyde at room temperature and a preparation method thereof. First, the activated carbon is treated with acid, and then nitrogen-containing compounds are used for nitrogen doping. After sol-gel heat treatment, nitrogen is introduced on the surface of the activated carbon. While mesoporous activated carbon is obtained, the surface polarity of the activated carbon is greatly increased. , and then use in-situ co-precipitation method to uniformly and stably load nano-cerium manganese oxide on the surface of activated carbon. Compared with existing catalysts, the nano-cerium manganese oxide / activated carbon composite material can expose more active sites, has good hydrophobic properties, improves the formaldehyde catalytic oxidation activity, and can be used directly or after simple molding Used in the field of air purification. The steps are simple, easy to operate and highly practical.
Owner:贾玉玺

[Ru(tatp)3]<2+> modified electrode and method for detecting glucose, uric acid and ascorbic acid in blood by adopting electrode

The invention relates to the technical field of electrochemical detection, and discloses a [Ru(tatp)3]<2+> modified electrode and a method for detecting glucose, uric acid and ascorbic acid in blood by adopting electrode. The [Ru(tatp)3]<2+> modified electrode is obtained by dropping a [Ru(tatp)3]<2+> solution on a work electrode and then performing constant-temperature drying at a temperature of 40-80 DEG C, wherein the solution is prepared by dissolving dimethyl sulfoxide. The method for detecting the glucose, the uric acid and the ascorbic acid in the blood by adopting the [Ru(tatp)3]<2+> modified electrode comprises the steps: connecting the [Ru(tatp)3]<2+> modified electrode into an electrochemical work station, respectively enabling potentials to be 0.25-0.35 V, 0.65-0.75 V and 0.95-1.05 V by using a potential step jump method, then dropping a blood sample, measuring response currents corresponding to different potentials, and respectively comparing with respective concentration-current standard curves, and calculating actual concentrations of the glucose, the uric acid and the ascorbic acid in the blood.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Alcohol-based fuel and preparation method thereof

The invention discloses an alcohol-based fuel and a preparation method therefor and belongs to the technical field of fuels. According to the method, a catalysis activator with homogeneous-dispersed nanoparticles is formed through dissolving AEO-3 in n-octane, then, adding methanol and formamide to form a microemulsion and then adding cerous nitrate nanoparticles, and thus, pollutants discharged from combustion are reduced; an antiknock additive is synthesized by a Mannich reaction through providing phenyl by o-methylphenol and providing hydroxyl, amino, formaldehyde base and the like by diethylenetriamine, and thus, the stability and safety of combustion of the alcohol-based fuel are improved; and the intersolubility among all ingredients of the alcohol-based fuel is promoted through adding petroleum ether, so that the activator can plays a full role during the combustion of the fuel, the activation energy of C-H bonds of fuel molecules are lowered, and the quantity of activated molecules is greatly increased. According to the alcohol-based fuel and the preparation method therefor, the problems of the current alcohol-based fuels that the combustion is insufficient and a large number of hazardous and noxious substances are generated after combustion are solved.
Owner:汕头市利利新能源科技有限公司

Method for removing mercury in flue gas using V2O5/carbon material catalyst

Disclosed is a method for applying a V2O5 / carbon material catalyst to remove mercury in flue gas, which comprises: feeding the catalyst into a fixed bed reactor, controlling the reaction temperature at between 120 and 180DEG C, and inputting atmospheric mercury-bearing flue gas, wherein, the concentration of mercury is 0.5 to 3070mu g / m3, and the air speed ranges from 10000 to 100000h-1; and the catalyst is the V2O5 / carbon material catalyst, and has the compositions, in weight percentage: 90 to 99.5 percent of carbon material, and 0.5 to 10 percent of vanadium oxide by taking V2O5 as a unit of measurement. The invention has the advantages of rather high catalytic oxidation removal capability to mercury, reducing the running cost and solving the secondary pollution.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI

Sulfur-containing organic waste gas catalytic oxidation catalyst and preparation method thereof

The invention relates to a sulfur-containing organic waste gas catalytic oxidation catalyst and a preparation method thereof. The surface of a honeycomb carrier is coated with an aluminum oxide-titanium oxide composite coating, then the honeycomb carrier is soaked in composite slurry, and the composite slurry is prepared after an SSZ-13 molecular sieve loads an active component. According to the catalyst, sulfur-containing organic matters in waste gas can be efficiently converted into sulfur dioxide, the SO2 selectivity is high, and the adverse effect of organic sulfides on the subsequent technological process is avoided.
Owner:CHINA PETROLEUM & CHEM CORP +1

[ru(tatp)3]2+ modified electrode and method for detecting glucose, uric acid and ascorbic acid in blood

The invention relates to the technical field of electrochemical detection, and discloses a [Ru(tatp)3]<2+> modified electrode and a method for detecting glucose, uric acid and ascorbic acid in blood by adopting electrode. The [Ru(tatp)3]<2+> modified electrode is obtained by dropping a [Ru(tatp)3]<2+> solution on a work electrode and then performing constant-temperature drying at a temperature of 40-80 DEG C, wherein the solution is prepared by dissolving dimethyl sulfoxide. The method for detecting the glucose, the uric acid and the ascorbic acid in the blood by adopting the [Ru(tatp)3]<2+> modified electrode comprises the steps: connecting the [Ru(tatp)3]<2+> modified electrode into an electrochemical work station, respectively enabling potentials to be 0.25-0.35 V, 0.65-0.75 V and 0.95-1.05 V by using a potential step jump method, then dropping a blood sample, measuring response currents corresponding to different potentials, and respectively comparing with respective concentration-current standard curves, and calculating actual concentrations of the glucose, the uric acid and the ascorbic acid in the blood.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Ferroferric oxide-carbon and nitrogen composite and preparation and application thereof

The invention provides a high-performance ferroferric oxide-carbon and nitrogen composite, and belongs to the technical field of composite materials. The composite is prepared by uniformly doping nano ferroferric oxide in a polypyrrole matrix. Because the composite has high activity and large specific surface area, and N atoms doped on the surface can immobilize active grains of a catalyst, and afuel cell catalyst prepared from the composite serving as a carrier has synergism with nanoparticles loaded on the catalyst to promote electrode catalysis reaction so as to improve the catalysis performance of the catalyst. Compared with the traditional catalyst prepared from a C carrier, the fuel cell catalyst has better catalysis performance and higher stability.
Owner:NORTHWEST NORMAL UNIVERSITY

A kind of sludge treatment equipment adopting catalytic wet oxidation method

The invention relates to a sludge treatment equipment adopting catalytic wet oxidation method, relates to the technical field of sludge treatment equipment, including a flushing high-temperature autoclave and a sealing cover, an electric furnace is arranged on the left side of the front of the high-temperature autoclave, and An oxygen tank is externally connected to the left, and the sealing cover is placed on the upper end of the high-temperature autoclave, and the sealing cover and the high-temperature autoclave are connected by bolts, and an air inlet pipe is inlaid on the upper right side of the oxygen tank. The beneficial effects of the present invention are: the stirring rod can be driven to stir the sludge by using the rotating shaft to rotate in the high-temperature autoclave, so that the catalyst and the sludge can be mixed quickly and uniformly, and the sludge can be fully and quickly contacted with oxygen. It can speed up the catalytic oxidation of sludge, and at the same time make the sludge contact with heat, so that the sludge can be processed quickly, and the organic matter and reducing inorganic matter in the sludge can be quickly oxidized into carbon dioxide, water and a small amount of solid residue.
Owner:佛山市弘峻水处理设备有限公司

Method for preparing oxygen vacancy-containing bismuth tungstate ultrathin sheet, and oxygen vacancy-containing bismuth tungstate ultrathin sheet and application thereof

The invention provides a method for preparing an oxygen vacancy-containing bismuth tungstate ultrathin sheet. The method comprises the following steps: step 1) synthesizing an oxygen vacancy-free bismuth tungstate (Bi2WO6) ultrathin sheet by using a hydrothermal method; and step 2) synthesizing the oxygen vacancy-containing bismuth tungstate ultrathin sheet from the oxygen vacancy-free bismuth tungstate ultrathin sheet obtained in the step 1) by using a vacuum aluminothermic method. The invention also provides the oxygen vacancy-containing bismuth tungstate ultrathin sheet prepared by using the method, and a method for photocatalytic degradation of formaldehyde into carbon dioxide by using the oxygen vacancy-containing bismuth tungstate ultrathin sheet.
Owner:UNIV OF SCI & TECH OF CHINA
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