Soochow University

Suzhou Timelyblue Environmental Technology, Co., Ltd.

Aojiang (wuxi) Network Energy Co., Ltd.

Jianmei Lu

Dongyun Chen

Jun Jiang

Najun Li

Jinghui He

Qingfeng Xu

Wenwu Feng

A TPC-OTBS n-hexane solution is added to a mixture of TPC-OSOF, DMF, and DBU and allowed to stand to produce a crosslinked solvent gel; the crosslinked solvent gel is added to methanol, stirred, and dried to produce the porous crosslinked material. The gel acquired can be prepared into a pore-rich solid porous organic polymer material by means of solvent exchange. SEM and TEM are used to characterize the surface and internal morphologies of the solid material, and the porous morphology thereof is discovered, with large pores being the majority. Infrared and nuclear magnetic resonance are used to characterize the structure of a crosslinked polysulfate; the complete reaction of a sulfuryl fluoride group is proven by means of solid-state fluorine nuclear magnetic resonance spectroscopy and XPS element analysis; and the porous structure of the crosslinked polysulfate allows same to be provided with improved application prospect in terms of adsorption.

Porous crosslinked material, preparation and application thereof

Disclosed are a Z-type heterojunction composite material of a tungsten oxide nanorod/a titanium carbide quantum dot/an indium sulfide nanosheet, a preparation method therefor and an application thereof. The method includes: preparing a titanium carbide quantum dot by using freeze-thaw and ultrasound methods for multiple times, and then placing a tungsten trioxide nanorod prepared by a hydrothermal method into a titanium carbide quantum dot aqueous solution, stirring same, and then standing same to obtain a tungsten oxide nanorod loading a quantum dot; stirring and uniformly mixing an indium compound and a sulfur compound in an ethylene glycol solvent, and then adding the tungsten oxide nanorod loading the quantum dot, and performing a reflux reaction at constant temperature to obtain the composite material. The titanium carbide quantum dot of the present invention can provide good electron transport channels at different semiconductor interfaces.

Z-type heterojunction composite material of tungsten oxide nanorod/titanium carbide quantum dot/indium sulfide nanosheet, preparation method therefor and application thereof

A bismuth iodide oxide/zinc oxide composite material, a preparation method therefor and an application thereof in piezoelectric photocatalytic removal of organic pollutants. The conductive substrate spin-coated with a zinc oxide seed solution is annealed and added to the precursor solution for reaction to obtain a zinc oxide nanorod array (ZnO NRs); the zinc oxide nanorod array is added into a bismuth iodide precursor solution for reaction to obtain the bismuth iodide oxide/zinc oxide composite material (BiOI/ZnO NAs). The composite material is put into an aqueous solution containing bisphenol A, adsorption is performed in the dark for half an hour, and then ultrasound and visible light are used together to remove organic pollutants in the water. After piezoelectric photocatalytic degradation of 90 minutes, bisphenol A in the aqueous solution is almost completely degraded.

Bismuth iodide oxide / zinc oxide composite and preparation method therefor and application thereof in piezoelectric photocatalytic removal of organic pollutants

Melamine is calcined to obtain melem; melem, perylene tetracarboxylic dianhydride and a solvent are mixed to obtain a mixture, and the mixture is subjected to a solvothermal reaction in an inert atmosphere to obtain perylene imide; and the perylene imide is dispersed in an aqueous solution containing a bismuth source and a tungsten source, and is subjected to a hydrothermal reaction to obtain a perylene imide/bismuth tungstate composite photocatalytic material. By means of constructing an organic-inorganic composite photocatalytic material, the introduction of the organic photocatalytic material that responds to visible light may enable the composite material to have a wider spectral response range; and the introduction of an inorganic semiconductor catalyst enables the composite material to produce more oxidizing active free radicals, thereby enhancing the photocatalytic degradation performance of the composite material on organic pollutants. The constructed organic-inorganic composite photocatalytic material has an excellent catalytic performance.

Perylene imide and composite photocatalytic material thereof, preparation method therefor and application thereof in removing organic pollutants from water

A method for preparing a porous-polymer-modified metal carbon nanotube membrane includes: preparing an acidified carbon nanotube membrane; preparing a modification solution; heating the acidified carbon nanotube membrane in the modification solution and reacting to obtain a metal carbon nanotube membrane; conducting a polymerization reaction to obtain a crude polymer product; coating the metal carbon nanotube membrane with a polyethylene glycol diglycidyl ether (PEGDEG) solution; coating the metal carbon nanotube membrane with a porous polymer solution; and heating the metal carbon nanotube membrane to obtain the porous-polymer-modified metal carbon nanotube membrane. A porous-polymer-modified metal carbon nanotube membrane is prepared according to this method.

Porous-polymer-modified metal carbon nanotube composite membrane, preparation method and application thereof

Monodisperse polystyrene microspheres are self-assembled on a conductive surface of FTO glass by vertical deposition method to prepare three-dimensional ordered photonic crystal opal template; the three-dimensional ordered photonic crystal opal template is immersed in a solution containing rhodium source, titanium source and strontium source, and is then calcined to prepare a rhodium doped strontium titanate inverse opal material; and the rhodium doped strontium titanate inverse opal material is added to water containing pollutants, and is then subjected to illumination and/or ultrasonic treatment to complete the removal of the pollutants in the water. The three-dimensional ordered macroporous rhodium doped strontium titanate inverse opal material may be applied in the field of photocatalysis. Under the action of external force, a built-in electric field formed by the spontaneous polarization of the material may effectively separate the photo-induced carriers, which may thus enhance the photocatalytic performance and improve the photocatalytic efficiency.

Rhodium-doped strontium titanate inverse opal material, preparation method thereof, and application thereof in piezoelectric synergistic photocatalytic removal of organic pollutants

A perfluoro compound includes perfluorobutyl ethylene (PFBE) and a fluoroalkane. The perfluoro compound has an azeotropic point between 40 degrees Celsius and 60 degrees Celsius, inclusive.

Liquid cooling while preventing electronic damage

A method for purifying dye-containing wastewater based on a porous-polymer-modified metal carbon nanotube membrane includes: (1) preparing the porous-polymer-modified metal carbon nanotube membrane; and (2) passing the dye-containing wastewater through the porous-polymer-modified metal carbon nanotube membrane to remove dyes in the dye-containing wastewater. A device for purifying dye-containing wastewater is also disclosed. The device includes the porous-polymer-based metal carbon nanotube membrane.

Method for purifying dye-containing wastewater based on porous-polymer-modified metal carbon nanotube composite membrane

The invention discloses a phosphorus-doped tubular carbon nitride micro-nano material and application thereof in waste gas treatment. Melamine is partially hydrolyzed into cyanuric acid through a phosphorous acid-assisted hydrothermal method to form a melamine-cyanuric acid super molecular precursor; the center of the precursor starts to be pyrolyzed under heating calcination, and thus phosphorus-doped tubular carbon nitride is obtained; the phosphorus-doped tubular carbon nitride and sodium borohydride are mixed and subjected to low-temperature calcination in an inert gas atmosphere, and defect-modified phosphorus-doped tubular carbon nitride is obtained. The defect-modified phosphorus-doped tubular carbon nitride micro-nano material has a good photocatalytic effect on catalytic degradation of waste gas; besides, the production raw materials are abundant and easy to obtain, and the phosphorus-doped tubular carbon nitride micro-nano material is good in stability and recyclable and has application prospects in waste gas treatment.

Phosphorus-doped tubular carbon nitride micro-nano material and application thereof in catalytic treatment of exhaust gas

The invention aims to provide a copper mesh coated with manganese molybdate and application thereof in the separation of oil-water emulsion and degradation of organic pollutants in water. A large amount of nano-scale manganese molybdates are grown on the surface of a copper mesh through a two-step hydrothermal method. Thereby, a multifunctional composite material is prepared, which can effectively separate oil-water emulsion and degrade organic pollutants in water. The copper mesh has good recyclability. Most of all, the product is suitable for industrial production to achieve the purpose of treating water pollution.

Copper mesh coated with manganese molybdate and application thereof in the separation of oil-water emulsion and degradation of organic pollutants in water

The invention provides a titanium carbide nanosheet/layered indium sulfide heterojunction and an application of the same in degrading and removing water pollutants. A simple electrostatic self-assembly method is used to uniformly absorb indium ions on the surfaces of TiCnanosheets, which effectively inhibits the stacking of the nanosheets and is beneficial to the uniform growth of InSnanosheets on the surfaces of the TiC. The present invent overcomes two disadvantages of too fast photogenerated carrier recombination rate of InSand easy agglomeration of nano-scale InS, and effectively improves the separation efficiency and photocatalytic activity of photogenerated electron-hole of InS.

Titanium carbide nanosheet/layered indium sulfide heterojunction and application thereof in degrading and removing water pollutants

The present invention discloses a carbon cloth material coated with iodine-doped bismuthyl carbonate, a preparation method thereof, and application in oil-water separation. The preparation method comprises the following steps: immersing preprocessed carbon cloth in iodine-doped bismuthyl carbonate precursor solution, and carrying out hydrothermal reaction to obtain the carbon cloth material coated with iodine-doped bismuthyl carbonate, wherein the iodine-doped bismuthyl carbonate precursor solution comprises bismuth citrate, sodium carbonate, sodium iodide and ethylene glycol. Through a hydrothermal method, the carbon cloth coated with iodine-doped bismuthyl carbonate is synthesized in one step, and the carbon cloth material has a function of emulsion separation. The material has the advantages of simple preparation, abundant raw material, good separation effect and good application prospect on the aspects of industrial sewage treatment and emulsion separation.

Carbon cloth material coated with iodine-doped bismuthyl carbonate, preparation method thereof, and application in oil-water separation

The invention discloses a visible light responsive titanium dioxide nanowire/metal organic skeleton/carbon nanofiber membrane and preparation method and application thereof. A CNF (Carbon Nano Fiber)/TiOnano-wire/MIL-100 (represented as CTWM) membrane material is prepared and an MIL-100 material is used for adsorbing waste gas to enhance the photocatalytic effect of titanium dioxide on the membrane material; a CNF/TiO/MIL-100 membrane catalyst sufficiently utilizes the adsorption capability of MIL-100 on the waste gas, the photocatalytic degradation performance of the TiOand high electrical conductivity of CNF to effectively prolong the service life of photoelectrons and promote the photocatalytic activity of the photoelectrons.

Visible light responsive titanium dioxide nanowire/metal organic skeleton/carbon nanofiber membrane and preparation method and application thereof

A heterojunction composite material consisting of one-dimensional InOhollow nanotube and two-dimensional ZnFeOnanosheets and its application are disclosed. When using this material for catalytic reactions, the hollow cavity and two-dimensional nanosheets of hollow nanomaterials can not only reduce the migration distance to accelerate the electron-hole separation, but also provide a large surface area and rich active sites to promote pollution adsorption and surface catalysis. At the same time, multiple light scattering or reflection in the hollow cavity of the hollow nanomaterials can increase light absorption and utilization. In addition, the heterojunction photocatalyst constructed by growing two-dimensional semiconductor nanosheets on a tubular substrate can promote the effective separation of photogenerated electrons and photogenerated holes, thereby improving the catalytic efficiency. In terms of catalytic performance, InO@ ZnFeOshows effective degradation of tetracycline, and due to its ferromagnetism, it shows convenient and good separation effect and has good recycling performance.

Heterojunction composite material consisting of one-dimensional INOhollow nanotube and two-dimensional ZnFeOnanosheet, and application thereof in water pollutant removal

The present invention provides a magnetic FeOnanosphere with PNH surface modification and application thereof in water treatment. First, 2,2-bipyridyl-5,5'-dicarboxylic acid is reacted with thionyl chloride to obtain 2,2-bipyridyl-5,5&#x2032;-diacid chloride; then 2,2-bipyridyl-5,5&#x2032;-diacid chloride and 1,4,8,11-tetraazacyclotetradecane react in the presence of triethylamine to obtain a polynitrogen heterocyclic polymer; the polynitrogen heterocyclic polymer is added into an aqueous solution with iron salt to obtain a magnetic FeOnanosphere with PNH surface modification which has strong light absorption ability, which improves its ability to catalyze in degradation of tetracycline under visible light, so that the pollutants are removed from water.

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Suzhou, China

Jianmei Lu