206results about How to "Improve adsorption stability" patented technology

The invention relates to a multifunctional bio-charcoal and a preparation method thereof. According to the technical scheme, the preparation method comprises the steps of dipping biomass into 1-15wt% caustic alkali solution for 1-50h, washing with water to be neutral, and drying to obtain treated biomass; then charring the treated biomass in a tube furnace in mixed gas at 300-900 DEG for 1-130h to obtain the multifunctional bio-charcoal. The biomass is one of rice straw, wheat straw, sawdust, wood, green grass, fruit peel and animal tissue waste; the biomass contains 30-60wt% of volatile organic carbon of charcoal, 10-40wt% of fixed carbon, 1-30wt% of ash and 10-60wt% of water. The preparation method disclosed by the invention has the characteristics of low production cost, high yield, simple process, controllable production process and environment friendliness, and the prepared multifunctional bio-charcoal has a good adsorption effect on heavy metals and high stability and can be used for repairing water bodies, solid matrixes and soil which are polluted by heavy metals.

The invention provides lipophilic polyurethane sponge and a preparation method thereof. The lipophilic polyurethane sponge is based on porous polyurethane sponge as a matrix, and the matrix is grafted with a hydrophilic oleophobic C-C long chain group. As a way for implementation, by reaction of the polyurethane sponge and a C-C long chain-containing acyl chloride compound, so that the polyurethane sponge can be grafted with a C-C long chain by bonding of chemical bonds of amino, hydroxyl and-C (O) Cl functional groups in polyurethane. Experiments confirm that the structure can greatly reduce the surface energy of the polyurethane sponge, greatly improves the oil absorption capacity, and is low in price, non-toxic and non-pollution, so that the lipophilic polyurethane sponge is a good oil adsorption material, and can be used to quickly and efficiently adsorb and recover crude oil and other substances in crude oil leakage and other situations.

The invention discloses a paper tape adsorbing and delivering device which comprises an outer rotary drum (2), an inner rotary drum (1), a vacuum air extractor (7), a power output device and a fixing device, wherein the outer rotary drum (2) and the inner rotary drum (1) are hollow, the outer rotary drum (2) is sheathed outside the inner rotary drum (1), and the outer rotary drum (2) and the inner rotary drum (1) can rotate relatively; one open end of the inner rotary drum (1) is connected with the vacuum air extractor (7), and the side face of the inner rotary drum (1) is provided with a long stripe-shaped gap along the axial direction; a plurality of vacuum adsorbing holes (4) are formed in the surface of the outer rotary drum (2), so that the vacuum adsorbing holes (4) can generate negative pressure when rotating to the gap position of the inner rotary drum (1); and the outer rotary drum (2) is fixedly arranged on main equipment by the fixing device, and can rotate relative to the fixing device. The paper tape adsorbing and delivering device provided by the invention is simple in structure, small in space occupation, convenient to process, wide in application range, and good in adsorption stability.

The invention discloses modified bio-char as well as a preparation method and an application thereof. The modified bio-char is obtained by impregnating acid modified bio-char with a micellar system, wherein the micellar system comprises an anionic biosurfactant, a cationic chemical surfactant and a humic acid solution. The preparation method comprises the following steps: (1) preparing bio-char; (2) preparing the acid modified bio-char; (3) preparing the micelle modified bio-char. The modified bio-char has the advantages of high adsorption capacity, high adsorption stability, good dispersibility in water and the like; the modified bio-char and a ferric salt flocculant are combined to be applied to removal of phenol from industrial wastewater, can realize integration of adsorption and flocculation, improve the flocculation effect of a water treatment agent, shorten time of a treatment process and reduce waste residues.

The invention belongs to the technical field of aluminum alloy machining equipment, and discloses an aluminum alloy metal part grinding and polishing device which comprises a grinding table and an aluminum alloy plate. Two symmetrically-distributed fixing assemblies are arranged at the top of the grinding table. Each fixing assembly comprises a first hydraulic rod, wherein the mounting end of the first hydraulic rod is arranged at the top of the grinding table, a fixing plate is arranged at the output end of the first hydraulic rod, a first electric telescopic rod is arranged on one side of the fixing plate, a first moving plate is arranged at the output end of the first electric telescopic rod, second electric telescopic rods are arranged on the end face of the periphery of the first moving plate, second moving plates are arranged at the other ends of the second electric telescopic rods, first air guide pipes are arranged at one ends of the second moving plates, and suckers are arranged at the other ends of the first air guide pipes. According to the aluminum alloy plate polishing device, through the arrangement of a polishing assembly, the fixing assemblies and a containing plate, the two side faces of an aluminum alloy plate can be ground at a time, the aluminum alloy plate can be ground and pre-cleaned, and the grinding precision is controlled.

The invention discloses a preparation method of an organic/inorganic composite intermediate/high-temperature proton conductive membrane. The preparation method comprises the following steps of: (1) mixing perfluorinated sulfonic acid resin, a mesoporous silica particle, and a solvent at a mass ratio of 100:(5-70):(100-2000) to obtain a suspension; (2) casting the suspension on a smooth and flat substrate to obtain a membrane by curing; (3) soaking the membrane in an ionic liquid to cause the membrane to adsorb the ionic liquid, wherein the mass of the ionic liquid adsorbed into the membrane is 10-80% of that of the perfluorinated sulfonic acid resin; and (4) removing the ionic liquid on the surface of the membrane adsorbed with the ionic liquid to obtain the organic/inorganic composite intermediate/high-temperature proton conductive membrane. The organic/inorganic composite intermediate/high-temperature proton conductive membrane prepared by the method disclosed by the invention has the advantages of high mechanical strength and good intermediate/high-temperature proton conductivity, the intermediate/high-temperature proton conductivity is more than 10<-3>S/cm, the tensile strength is higher than 6.0MPam and the preparation method facilitates wide application of the intermediate/high-temperature proton conductive membrane to the fields of fuel cell, catalysis, sensors and the like.

The invention discloses a phase-change composite material with a photo-thermal conversion function and a preparation method thereof, and belongs to the cross field of phase-change energy storage and energy conversion. The multifunctional phase change composite material is prepared by combining Ti2O3 nano particles with a heat storage phase change material for the first time, so that a photo-thermal conversion function is expected to be provided on the basis of phase-change heat storage and temperature control functions, and the carbon foam-based phase-change composite material which is is easy to cut and process, has a controllable appearance size, has light weight and flexibility, and has photo-thermal conversion performance is provided. Due to the three-dimensional porous carbon foam matrix of the phase change composite material, the phase-change material can be stably stored, and the storage capacity can be regulated and controlled. The phase-change composite material has excellent photo-thermal conversion and temperature adjusting functions and can be used in the aspects of heat energy storage and release, thermal insulation, photo-thermal conversion, infrared stealth and infrared decoy of military equipment, and the like.

The invention discloses a pressed adsorption router, belonging to routers in the technical field of electronic products. The pressed adsorption router can be adsorbed at the wall corner, so that the router is less likely to fall down by touch and is more stable in adsorption. The router comprises a router body with a fan-shaped cross section. The router body comprises an upper fan surface, a lower fan surface, two rectangular side surfaces and a cylindrical surface. Two rectangular side surfaces are vertical to each other. A plurality of RJ45 interfaces are uniformly distributed on the cylindrical surface. An adsorption device is installed on the rectangular side surface. Main suckers are correspondingly arranged at four corners of the adsorption device. Mouths of the main suckers are outward. An annular sucker with a hemispheroid cross section is arranged outside the main sucker. The main sucker and the annular sucker are integrated. The pressed adsorption router is applicable to the router.

A photoelectric conversion element, having a photoconductor layercontaining semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell:

M(LA)(LD)(LX)_mX·(CI)_mY  Formula (I)

M represents a metal ion, LA represents a ligand of Formula (AL), LD represents a bidentate or tridentate ligand, at least one of coordinating atoms being an anion; LX represents a monodentate ligand; CI represents a counter ion; mX is 0 or 1; mY is 0 to 3;

Rings A to C represent a heterocycle; Z¹ and Z² represent a carbon or nitrogen atom; Anc1 to Anc3 represent an acidic group; X¹ to X³ represent a single bond or linking group; R¹ to R³ represent a substituent; l1, l3, l2, m1, m3, m2, n1, n2, and n3 each are an integer.

The invention provides an ecological restoration method for a black and odorous riverway. The method comprises the following steps: (1) rapidly and fully stirring bottom mud, putting a mineral bottommud ecological restoration material into a water body and stirring the bottom mud at the same time for uniformly dispersing the material in the bottom mud, standing the mixture for 1-3 days, then adding bacterial sludge powder into the water body and stirring the water body, thus completing bottom mud restoration after 3-5 days of microbial degradation; (2) using an aeration oxygenation method forincreasing dissolved oxygen in the water body, and then arranging carbon fiber ecological grass in the water body; and (3) planting aquatic plants in the water body to absorb organic matters and heavy metal pollution in the water body, putting benthic organisms into the water body to construct a benthic ecosystem, and finally putting fishes into the water body to control the growth of algae in the water body. According to the method, the inorganic mineral material and the bacterial sludge powder are adopted for ecological restoration of the bottom mud, then the water body habitat and the water body ecological system are sequentially constructed, comprehensive restoration of the bottom layer, the water body and the environment of the riverway is completed, treatment is thorough, and the treatment efficiency is high.

The invention relates to a composite material and a preparation method thereof. The preparation method comprises the steps of slowly adding the following components in parts by weight: 80-90 parts of amination-enhanced modified straw, 1-10 parts of oxidized graphene and 1-10 parts of cyclodextrin into deionized water with the bath ratio of 1 to (10-20), and carrying out ultrasonic treatment for 1-24h; and then, carrying out freeze drying to obtain the amination-enhanced modified straw/oxidized graphene/cyclodextrin composite material. According to the invention, the amination-enhanced modified straw/oxidized graphene/cyclodextrin composite material is prepared by loading oxidized graphene and cyclodextrin on the amination-enhanced modified straw serving as a carrier, and then, carrying out freeze drying. The composite material has the advantages of environmental friendliness, good mechanical property, regular structure, high porosity and adsorption capacity, high adsorption speed, wide application range, simplicity in desorption, reutilization and the like.

The invention discloses a preparation method and application of an environment-friendly, efficient and low-cost polyamino-carboxyl crosslinked straw fiber adsorbent material, and relates to the fieldsof preparation and application of biomass adsorbent materials. The polyamino-carboxyl crosslinked straw fiber adsorbent material is obtained through multiple times of cross-linking of diethylenetriamine, epichlorohydrin and nitrilotriacetic acid. It is shown through FTIR spectrograms that amino groups and carboxyl groups are introduced successfully, and the adsorbent material has good adsorptionperformance for a single system or mixed system of Cd and SMZ.

The invention provides a preparation method of a high carboxyl density polycarboxylic acid water reducing agent with long and short branched chains. The preparation method comprises the following steps: (1) adding 3000 molecular weight polyether macromonomers, 1200 molecular weight polyether macromonomers and water at a certain ratio in a reaction kettle, and stirring and heating until dissolving;2) controlling the temperature to 45-50 DEG C, and starting to add a certain amount of hydrogen peroxide; (3) after 5 min, sequentially starting to dropwise add a solution B and a solution A, whereinthe solution A starts to be dropwise added within 10 min after the addition of the hydrogen peroxide, the dropwise adding time of the solution A is a hours, the dropwise adding time of the solution Bis a+0.5 hours, the solution A consists of acrylic acid, unsaturated sulfonate and water at a certain ratio, and the solution B consists of ascorbic acid, a phosphate monomer, a chain transfer agentand water; and (4) after the dropwise adding is completed, maintaining temperature constant, curing for b hours, and when the temperature of the reaction solution is lower than 30 DEG C, slowly addinga certain amount of neutralizer, and supplementing water to 1000 parts, thereby obtaining the high carboxyl density polycarboxylic acid water reducing agent with long and short branched chains.

The invention discloses a quantitative rapid deoxynivalenol detection card which comprises a sample pad, a nitrocellulose membrane and an absorbent pad arranged on a bottom plate in sequence, whereina detection line coated with a DON hapten-carrier protein coupling agent and a quality control line coated with a goat anti-rat antibody are arranged on the nitrocellulose membrane; a to-be-detected sample solution is mixed and incubated with latex microspheres coupled with a DON antibody before dropping to the sample pad. The detection method comprises the steps: preheating, adding liquid, incubating, reacting and reading the result. The detection card disclosed by the invention does not need a release pad containing a gold-labelled antibody and is used for detecting the latex microspheres coupled with the DON antibody mixed with the sample solution, the color is bright and easy to determine, and the coupling antibody is in a chemical bond coupling state, has excellent physical adsorptionstability with colloidal gold and is high in detection accuracy and precision degree; the batch-to-batch difference is small, and the cost is low; in addition, the detection method of the detection card disclosed by the invention is simple in operation and suitable for batch production and application.

This invention discloses a method for preparing polyurethane and its application. The method comprises: (1) heating polyisocyanate trimer, solvent (70-90% of the total amount), and catalyst to 70-80 deg.C under nitrogen protection, and stirring; (2) adding monofunctional end-capping agent and solvent (5-15% of the total amount), and reacting at 78-82 deg.C; (3) adding polyether diol monomer and solvent (10-20% of the total amount), and reacting at 78-82 deg.C; (4) adding N-heterocyclic compound end-capping agent and the rest solvent, and reacting at 78-82 deg.C. The obtained polyurethane can be used as paint dispersant, and has strong adsorbency to fused ring organic paints, and high acidic tolerance.

The invention provides a lead frame feeding and conveying device, which comprises a material storage mechanism, an overturning suction disc and a conveying mechanism, wherein the material storage mechanism is provided with a lifting plate which moves in the vertical direction and is used for storing a lead frame, the overturning suction disc is rotationally arranged, the front section of the overturning suction disc is a pair of suction plates which are arranged in parallel at intervals, a plurality of vent holes are formed in one face of each suction plate, the conveying mechanism comprises a pair of rails arranged at intervals, the rails are of an L-shaped structure, a pushing plate is movably arranged in the middle of the rails in the length direction, a plurality of shifting sheets are arranged on the top face of the pushing plate at intervals in the length direction, the interval size is larger than the length of the lead frame, the shifting sheet can protrude out of or be hidden in the pushing plate, gaps are formed between the pushing plate and the rails on the two sides, and when the overturning suction disc is turned to the conveying mechanism, the two suction plates are located in the gaps between the pushing plate and the rails on the two sides correspondingly. According to the invention, high adsorption firmness is achieved, the lead frame can be prevented from falling off in the feeding process, and the lead frame can be conveyed more stably and accurately.

The invention relates to a treatment method of sulfur dioxide-containing waste gas; the sulfur dioxide-containing waste gas is compressed in a compression unit and enters an adsorption unit for adsorption; an adsorption material adopted by the adsorption unit is a modified MIL-(Al) metal organic framework material, desorption is performed after adsorption penetration, desorbed gas is compressed and condensed in the liquefaction unit, and non-condensable gas and compressed flue gas are mixed and then enter the adsorption tower. According to the invention, efficient physical adsorption and liquefaction recovery of sulfur dioxide can be realized, frequent operation is not needed, the SO2 recovery rate is high, the operation stability is good, and the purified gas meets the emission requirements.

A strong-antibacterial multi-functional agricultural chemical used also as fertilizer is prepared from deacetylated chitin and its derivative, ClO2, and vegetative nutrients through preparing the solution of deacetylated chitin or its derivative, slowly adding ClO2 while stirring, reaction, adding vegetative nutrients and stirring.