2results about How to "Efficient photocatalytic performance" patented technology

The invention discloses a spider silk loaded sulfide hollow nanotube composite material, belonging to the field of materials, the composite material is a spider silk loaded CdS nanocomposite material with a nanotubular structure obtained by in-situ growing CdS on spider silk; or, a spider silk loaded CdS / NiS nanocomposite material with a nanotubular structure obtained by in-situ growing CdS on spider silk and then loading NiS. The invention is simple to operate, environmentally friendly, can obtain spider silk in-situ loaded CdS or CdS / NiS hollow nanotubes with controllable size, morphology and atomic ratio, improve the dispersibility of CdS or CdS / NiS nanomaterials; change the motion trajectory of photogenerated electron holes, effectively prevent the recombination of photogenerated electrons and holes, and improve the photoelectric efficiency.

The utility model is applicable to the technical field of filter bags, and provides a film-coated polyimide needled felt filter bag which is of a layered structure and comprises a surface layer, the surface layer is made of polyimide fibers, the surface layer is bonded with a supporting layer through a bonding layer, the supporting layer is made of glass fibers, and the surface layer is bonded with the supporting layer through a bonding layer. A protective layer is arranged on the surface of the surface layer and adopts a nano titanium dioxide coating; the surface layer of the polyimide fiber is coated with a layer of nano titanium dioxide coating, efficient photocatalytic performance is achieved, titanium dioxide can generate strong oxidizing substances under irradiation of ultraviolet rays, various harmful gases including sulfur dioxide can be decomposed, and the photocatalytic performance of the polyimide fiber is improved. Meanwhile, the nano titanium dioxide particles can form a compact coating on the surface of the polyimide fiber, so that a corrosive medium is effectively prevented from permeating and contacting the polyimide fiber, and the corrosion of acid gas in the flue gas to the surface layer of the polyimide fiber is delayed.