Prepearation Of Carbon Nano/micro Materials From Halogenated Phenols

Carbon nano materials are ubiquitous and indispensable in applications for adsorbates,optical devices,nanoreactors,electrochemical supercapacitors,and storage materials because they have superior physical and chemical properties,such as electric conductivity,thermal conductivity,chemical stability,low density,and the wide availability.Carbon nano/micro materials functionalized with amino and hydroxyl groups are synthesized from halogenated phenols in one-step process.Hollow carbon microspheres(HCMS) are parepared from 2,4,6-tribromophenol and ferrocene with toluene/ethanol(4:1) at 250℃for 24 h.The effect of carbon precursors,reaction time,temperature,nitrogen sources and the fraction of ammonia is investigated.The reaction mechanism is also proposed.The functionalized microspheres are used for heavy metal ions and organic dyes adsorption,it is possible to tune the adsorption behaviour of hollow carbon microspheres by changing the surface groups.The as-synthesized HCMS could be particularly useful as adsorbents for the removal of organic dye and heavy metal wastes.3D dahlia-like iron oxide @ carbon nanostructure is synthesized by a PEG-mediated self-assembly process from ferrocene and 2,4,6-trichlorophenol using PEG 200 as solvent.H₂PtCl₆ and HAuCl₄ is reduced by the surface active groups of hydroxyl and amino groups on the surface of the 3D dahlia-like iron oxide @ carbon materials,and formed carbon-metal complex materials.The carbon protected nanomagnets is useful as catalyst carrier for catalytically active species(Pt nanoparticles or Au shell and nanoparticles).