Activated carbon fiber surface was modified with different concentrations of Cu(NO3)2 solution to prepare SO2 and NOx corrosive atmosphere adsorption materials.The effects of Cu(NO3)2 modification on the pore structure,surface physicochemical properties and adsorption properties of the activated carbon fibers were revealed by IR,X-ray diffraction,X-ray photoelectron spectroscopy and other characterization methods.The results showed that the surface functional groups of activated carbon fibers modified by copper nitrate changed,and the structural parameters such as specific surface area,pore volume and pore diameter exhibited a decreasing trend.After modification,the active sites on the activated carbon fiber surface increased,and the corresponding adsorption properties were improved significantly.The saturated adsorption capacities of the activated carbon fiber modified with 10% Cu(NO3)2 for SO2,NO2 and NO were 110mg/g,102mg/g and 67mg/g,respectively,which increased by 80%,88% and 24% compared with those before modification.The protective package containing 10% Cu(NO3)2-modified activated carbon fiber was stored in the marine atmosphere for a long time to verify the control effect.
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基金资助
国防科工局基础性军工科研院所稳定支持项目(HDH59020304)
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