3results about How to "Reduce transfer resistance" patented technology

This invention belongs to the field of wastewater treatment technology, specifically relating to a Ti3C2T x / / HEP catalyst, ozone composite catalytic packing material, its preparation method and application. The catalyst is composed of MXene sheet support and high-entropy perovskite oxide, and its preparation method is as follows: Ti3C2T x The metal salt is added to the solvent and stirred to obtain a mixture; then the ligand solution is added and stirred to form Ti3C2T. x / MOFs wet gel was dried under multi-gradient vacuum drying to obtain dry gel, which was then ground into powdered precursor; the precursor was calcined under an inert atmosphere and cooled to obtain Ti3C2T x / / HEP catalyst. The ozone composite catalytic packing material of this invention has advantages such as fast electron transfer rate, abundant active sites, high catalytic stability, and low metal leaching, and can be widely used in various industrial wastewaters for the degradation of organic matter.

The application of binaphthyl Salen cobalt molecular catalyst modified BiVO4 photoanode belongs to the field of photoelectrocatalysis technology and organic synthesis cross. BiOI film is deposited on FTO conductive glass by electrochemical deposition method, and then is converted into BiVO4 photoanode substrate by calcination; 3-hydroxy substituted binaphthyl Salen cobalt molecular catalyst CoL is synthesized; CoL is loaded on the surface of BiVO4 by cyclic voltammetry electrodeposition to obtain a hybrid photoanode. The photoanode is applied to the photoelectrocatalytic olefin epoxidation reaction, water is used as oxygen source, and acetone-water is used as electrolyte. The strong interface coupling between the catalyst and BiVO4 is strengthened by the electrodeposition of the molecular catalyst strategy, and the interface charge transport efficiency, reaction conversion rate and selectivity are improved. The conversion rate of styrene reaches 99%, the selectivity of epoxide reaches more than 90%, and the stability is excellent. The application provides a new way for green and efficient synthesis of epoxide, and has wide application prospect.

This invention belongs to the field of water treatment technology, specifically disclosing a Fenton-like composite catalyst, its preparation method, and its application. The Fenton-like composite catalyst is prepared from the following components in parts by mass: 10-25 parts high-entropy spinel, 60-80 parts carbon support, 8-15 parts binder, and 1-2 parts pore-forming agent. The high-entropy spinel is a composite material composed of transition metal doped cobalt. The high-entropy spinel in this catalyst regulates the Co content through high-entropy configuration. 3+ The transition from low-spin to high-spin enhances the hybridization of Co 3d-O 2p orbitals, enabling ring-opening and chain breaking of pollutants such as benzene rings and heterocyclic rings. This invention's Fenton-like composite catalyst, used as a catalytic packing material in a fixed-bed reactor to remove pollutants from wastewater, constructs a gradient oxidation process. This allows different types of active species to synergistically cooperate within each gradient region, thereby achieving highly efficient degradation of various types of pollutants and significantly improving the utilization efficiency of reactive oxygen species.