3results about How to "Microporous increase" patented technology

The application provides a high-capacity and high-rate hard carbon negative electrode material and a preparation method and application thereof, and belongs to the technical field of sodium ion battery negative electrode materials. Specifically, biomass shell raw materials are coarsely broken and sieved to obtain biomass coarse powder; the biomass coarse powder is mixed with an oxidizing agent and then pre-oxidized; mechanical pulverization is performed to obtain biomass coarse powder with a D50 of 8-15 microns; the biomass coarse powder is added into mixed acid and heated in a water bath, and then washed with water until neutral to obtain a purified precursor; and finally, the precursor is subjected to staged high-temperature carbonization in a vacuum carbonization furnace. Through specific process parameters, the prepared hard carbon material has a hierarchical porous structure and a suitable graphite microcrystalline layer spacing, and has a low total content of metal impurities; when applied to a sodium ion battery negative electrode, the hard carbon material exhibits a high reversible specific capacity, a high initial coulombic efficiency, and excellent long cycle stability and rate performance.

The application discloses an activated carbon hazardous waste treatment method and relates to the field of hazardous waste treatment, aiming to solve the problems of traditional processes in parameter control, regeneration effect and safety guarantee and the like, and specifically comprises the following steps: collecting organic functional group characteristic data and water content data of activated carbon hazardous waste to be treated; inputting a machine learning model and outputting target temperature T L of a low-temperature section of a rotary kiln, target temperature T H of a high-temperature section and minimum residence time t of the high-temperature section; controlling the low-temperature section of the rotary kiln to treat the activated carbon hazardous waste in the interval [T L -15 ℃, T L +15 ℃] according to T L , and detecting the concentration of benzene series, and when the concentration is reduced to a predetermined concentration, the activated carbon hazardous waste is transported to the high-temperature section; controlling the high-temperature section of the rotary kiln to be treated for at least t minutes in the interval [T H -20 ℃, T H +20 ℃] according to T H and t; and sending the activated carbon hazardous waste from a discharge port of the rotary kiln into a quenching tower. The application improves the recycling value of the regenerated activated carbon, and takes into account the environmental protection effect and treatment economy.

The present application relates to mineral composite catalytic material preparation, and particularly relates to a TiO2@NH2-MIL-125 / diatomite composite material for significantly improving photocatalytic CO2 reduction and a preparation method thereof.The material obtained by the present application has an "S" type carrier transport characteristic, which reduces the hole-electron pair recombination rate, and retains the strong oxidation reaction sites on the TiO2 and the strong reduction reaction sites on the NH2-MIL-125, and further significantly improves the photocatalytic CO2 reduction efficiency and stability.In addition, the catalyst has a multi-level pore structure, a large specific surface area and a strong light absorption capacity, so that the photocatalytic activity is improved, the product CO is easy to desorb on the surface, and the active sites are favorably reused, and the stability of the photocatalyst is enhanced.Meanwhile, the catalyst of the present application has a good application prospect in the field of photocatalytic CO2 reduction, the raw material is relatively cheap, the preparation method and operation are simple, and the catalyst is suitable for large-scale production.