4results about How to "Increase the adsorption rate" patented technology

This invention provides a flow electrode particle, its preparation method, and its application. The flow electrode particle is a composite microsphere comprising a lithium-intercalating active material and a conductive material; the conductivity of the flow electrode particle is not less than 4.8 × 10⁻⁶. ‑4 S / m; the contact angle between the flowing electrode particles and water is 60-80°; the specific surface area of ​​the flowing electrode particles is 30-60 m². 2 / g. The flowing electrode particles provided by this invention have good conductivity and hydrophilicity, and good adsorption of lithium. The flowing electrode slurry prepared from them can be used in flowing electrode lithium extraction devices to improve the adsorption capacity and adsorption rate of lithium.

This invention provides a one-step in-situ preparation method for high-performance oatmeal-like composite adsorbent materials, along with its application, belonging to the field of liquid resource development and rare metal recovery technology. The preparation method includes the following steps: dissolving ferrous cyanide and sodium alginate in water to obtain solution A; dissolving a metal salt in water to obtain solution B; adding solution A dropwise to solution B to initiate a cross-linking reaction and then separating and washing to obtain the oatmeal-like composite adsorbent material. This invention also provides an application of the oatmeal-like composite adsorbent material in the separation and enrichment of cesium in radioactive wastewater. The preparation method of this invention greatly simplifies the process flow, avoiding the technical difficulties of complex preparation processes, easy powder agglomeration, and cumbersome composite processes inherent in traditional powder adsorbents. Furthermore, the prepared composite adsorbent material exhibits high adsorption capacity, adsorption rate, and cycle stability, making it easy to achieve continuous industrial operation.

This invention discloses a hierarchical guanidine resin-based CO2 adsorbent material and its preparation method, belonging to the field of polymer synthesis technology. The adsorbent material prepared by this invention has a composite spherical structure and a hierarchical pore structure, including micropores, mesopores, and macropores. By introducing a hierarchical pore structure, the adsorption capacity of the material for CO2 is effectively improved. The introduction of hierarchical pores can significantly reduce molecular diffusion resistance and increase the contact area between the adsorbent and CO2 molecules, thereby achieving rapid adsorption. Furthermore, pyridyl, polyamino compounds, and guanidine groups have strong basicity and chemical affinity for CO2. Through surface functionalization modification, the number of active sites on the material surface is significantly increased, thereby further improving the CO2 adsorption capacity and selectivity.

The application belongs to the technical field of biomass green high-value utilization, and more particularly relates to a traditional Chinese medicine stem biomass charcoal as well as a preparation method and application thereof. The traditional Chinese medicine stem-based porous carbon material with a columnar network porous structure is prepared through low eutectic solvent impregnation reflux pretreatment, high-temperature carbonization, acid washing, filtration and drying. The preparation method provided by the application can not only control the specific surface area of the traditional Chinese medicine stem-based porous carbon, but also retain N and S heteroatoms in the traditional Chinese medicine stem, and can also regulate the pore structure of the traditional Chinese medicine stem-based porous carbon. The obtained traditional Chinese medicine stem-based porous carbon is suitable for being used as an adsorption material for adsorbing and separating pollutants in water bodies, soil and other environments, and can also store a large amount of charges to improve the energy storage property of the material and be used for preparing electrochemical devices. The overall preparation method is low-carbon and environmentally friendly, the obtained biomass charcoal has a high specific surface area, and has good commercial application value.