3 results about "Porphyran" patented technology

The application discloses a preparation method of all-weather bimetallic porphyrin CMP material, and specifically comprises the following steps: performing polycondensation reaction on M1-TCPP-COCl and 5,5'-diamino-2,2'-bipyridine in an organic solvent, performing suction filtration, washing and drying on a product to obtain M1Por-CMP; and performing coordination reaction on M1Por-CMP and metal M2 in acetonitrile, and performing suction filtration, washing and drying on a product, and the preparation method is completed. The M1Por-M2Bpy-CMP prepared by the application has rich pore structure and conjugate structure, can realize massive adsorption of pollutants through π-π interaction and physical adsorption. Meanwhile, the coordination bimetal in the CMP material can also increase the adsorption of pollutants through electrostatic interaction. The synergistic effect of the above various adsorptions can realize mass transfer strengthening before degradation.

This invention provides a method for preparing a two-dimensional heterostructure catalytic material (Fe / Cu-TCPP / S-CN) composed of a self-assembled iron-copper bimetallic porphyrin hydrogen-bonded organic framework and carbon nitride, and its application in photocatalytic synergistic activation of persulfate (PMS) for the degradation of bisphenol A (BPA), belonging to the field of environmental pollution control technology. The material uses urea and melamine as precursors, and prepares a carbon nitride support with abundant nitrogen sites and a high specific surface area through mechanical mixing and high-temperature calcination. Furthermore, an iron-copper bimetallic porphyrin is stably anchored to the carbon nitride surface in the form of a hydrogen-bonded framework through a self-assembly strategy. Structural characterization shows that iron and copper atoms are highly dispersed atomically within the porphyrin ring, forming a unique two-site coordination structure. This configuration not only enhances the electronic coupling between the metal and the support, but also constructs a superlattice interface with significant quantum confinement effects through π–π stacking and van der Waals interactions, effectively promoting the spatial separation and directional migration of photogenerated carriers, providing an ideal electron transport channel for PMS activation. This study successfully developed a highly efficient oxidation system dominated by singlet oxygen through the rational design of a heterostructure of an iron-copper bimetallic porphyrin hydrogen-bonded organic framework and carbon nitride. This material exhibits excellent and stable pollutant degradation performance under a wide pH range (especially in alkaline environments), providing a new material platform and theoretical basis for developing advanced oxidation technologies suitable for complex real-world water bodies.

The application relates to the technical field of electrocatalytic materials, and particularly discloses a catalytic material based on a bimetallic porphyrin covalent organic framework structure and a preparation method and application thereof. By introducing specific nickel / cobalt bimetallic porphyrin units into a covalent organic framework (COF), a high-performance water electrolysis oxygen evolution reaction (OER) catalytic material is successfully prepared. By virtue of the rigid conjugated structure and strong coordination capacity of the porphyrin ring, the nickel / cobalt bimetallic active sites are highly and uniformly dispersed in the framework, and by high-temperature calcination and carbonization, a porous graphite carbon skeleton with a high specific surface area is constructed while the metal-nitrogen active center is retained, so that the conductivity, structural stability and active site availability of the material are significantly enhanced. The composite material exhibits excellent OER catalytic performance and long-term electrochemical stability in an alkaline electrolyte, and exhibits good practical application potential in the field of water electrolysis oxygen evolution.