37results about How to "Suitable for expanding production requirements" patented technology

The invention relates to the field of materials, in particular to a copper-containing zinc oxide / graphene quantum dot catalyst and a preparation method. By preparing metal copper (Cu) nanoparticles doped ZnO composite film, the separation rate of photogenerated electrons and holes can be improved, and the photocatalytic performance can be improved. At the same time, GQDs aqueous solution is spin-coated on the surface of the composite film to prepare The copper-containing zinc oxide / graphene quantum dot dual semiconductor catalyst system can not only effectively prevent the photocorrosion of ZnO, but also use GQDs as semiconductors to generate electron-hole pairs by themselves under the excitation of ultraviolet light, thereby providing more The highly active free radicals are conducive to the degradation of organic matter.

Disclosed is ternary neterogeny structural light degradation organic matter catalyst 5% TiO2-Bi2MoO6 / Bi3.64Mo0.36O6.55, which consists titanium dioxide (TiO2) and two types of dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55) with different structures, wherein the titanium dioxide is 5% of total mole number of bismuth elements. The ternary neterogeny structural light degradationorganic matter catalyst 5% TiO2-Bi2MoO6 / Bi3.64Mo0.36O6.55 has the advantages that the catalyst is the ternary neterogeny structural light degradation organic matter catalyst reported for the first time; 2, the catalyst is directly synthesized by a one-step hydrothermal method, is simple in operation, low in production cost, high in synthesis yield and purity, fine in repeatability, and meets requirements of batch production; 3, the catalyst is fine in thermal stability and is high in acid resistance and alkali resistance; and 4, the catalyst has a good photocatalytic degradation organic effect, and has a higher catalysis effect as compared with single titanium dioxide, dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55) and an optional combination (TiO2-Bi2MoO6, TiO2-Bi3.64Mo0.36O6.55 and Bi2MoO6 / Bi3.64Mo0.36O6.55) among the single titanium dioxide and the dibismuth trimolybdenum dodecaoxide (Bi2MoO6 and Bi3.64Mo0.36O6.55).

The invention provides a terbium coordination polymer for separating propyne / propylene mixed gas and a preparation method thereof. The chemical formula of the terbium coordination polymer is [Tb 2 ·(O 2 C‑C 6 h 2 f 2 -C 6 h 2 f 2 ‑CO 2 ) 3 ·H 2 O](O 2 C‑C 6 h 2 f 2 -C 6 h 2 f 2 ‑CO 2 Represents 3,3',5,5'-tetrafluorobiphenyl-4,4'-dicarboxylic acid), belongs to the tetragonal crystal system, and the space group is P4 1 22; Unit cell parameters are α=90°, β=90°, γ=90°, Z=4. The preparation method of the terbium coordination polymer comprises the following steps: mixing terbium salt, 3,3',5,5'-tetrafluorobiphenyl-4,4'-dicarboxylic acid and o-fluorobenzoic acid, and then putting them into a container in a reaction kettle with an organic solvent, and react at 358-373K to obtain the terbium coordination polymer. The terbium coordination polymer can be used to separate propyne / propylene mixed gas.

The invention provides a cerium oxide, graphene quantum dots and graphene-like phase carbon nitride composite photoactivate material and a preparation method thereof. The composite photoactivate material is formed by embedding cerium oxide into a graphene-like phase carbon nitride layer structure and loading the nitrogen-doped graphene quantum dots onto graphene-like phase carbon nitride. According to the composite photoactivate material, by use of doping of the nitrogen-doped graphene quantum dots, the photoresponse range of the graphene-like phase carbon nitride is expanded; through the quick photoproduction electron and hole separation effect and the electronic migration capability among the nitrogen-doped graphene quantum dots, cerium oxide and graphene-like phase carbon nitride, the composite photoactivate material has an efficient photocatalytic activity.