Synthesis Of Honeycomb-Like Nitrogen-Doped Porous Carbon Nanosphere And Their Applications In Catalysis And Adsorption

Carbon materials are widely used in catalysis,adsorption and separation of pollutants,energy and other fields.The introduction of nitrogen atoms can change the physicochemical properties of the porous carbon materials,thereby making the porous carbon materials have more tunable functions in the application process.In addition,the morphology and nanostructure of porous carbon materials also have a great influence on their electronic properties and corresponding chemical properties.Therefore,the morphology regulation of porous carbon materials has also been widely studied by researchers.The first chapter introduces the basic background of porous carbon materials,including the effect of nitrogen atom doping on porous carbon materials,the doping method of nitrogen atoms,the morphology control of porous carbon materials,and the fields of re-catalysis of porous carbon materials and removal of pollutants in water.application prospects.In the second chapter,nitrogen atoms were introduced into porous carbon materials by in-situ synthesis method,and a template-free method was developed for the preparation of honeycomb-like nitrogen-doped porous carbon nanospheres with specific morphology.Pd nanoparticles were anchored by impregnation and in situ reduction by high temperature carbonization.A high efficient honeycomb-like nitrogendoped porous carbon nanosphere catalyst supported by pd nanoparticles has been prepared by a mild hydrogen peroxide post-treatment method.The catalyst has excellent performance in the selective hydrogenation of cinnamaldehyde.In the third chapter,the catalyst ferric chloride was reused during the hypercrosslinking process.A honeycomb-like nitrogen-doped porous carbon nanosphere adsorbent loaded with zero-valent iron was synthesized by in situ reduction of ferric iron through high temperature carbonization and post-treatment with hydrogen peroxide using a similar synthesis strategy.And the iron source comes from the residual ferric chloride catalyst after the Friedel-Crafts reaction.The adsorbent material can efficiently remove organic dyes and heavy metal ions in water.