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A novel and specific modified cellulose acetate cigarette filter is obtained. The modification includes immersing of the filter into a mixture solution of oxidized multi-wall carbon nanotubes (o-MWNTs) and graphene oxide (GO), followed by lyophilization. During this process, the o-MWNTs/GO composite has been coated on the surface of cellulose acetate in the cigarette filter, with an o-MWNTs:GO:filter...
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