The Study on the Effect of Nitrogen Doping on the VOCs Adsorption Performance of Carbon Aerogel
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The fine micro-pores of carbon aerogels have an advantage in adsorbing VOCs such as toluene and benzene. Nitrogen(N) doped on the carbon structure can increase VOCs adsorption by favoring the π-π electron donor and acceptor interaction. Since the melamine structure is rich in nitrogen, it was used to dope N into the carbon aerogel structure. The ratio of melamine was adjusted to prepare a carbon aerogel with a different N-doped ratio. Through XPS and FT-IR data, it was confirmed that N-doped was effectively performed. Surface area and pore volume of the samples were compared through BET data. VOCs adsorption characterization was measured by comparing the VOCs content of mainstream smoke of tobacco. Carbon aerogels with different ratios of N-doped (CA, CA_N1 and CA_N2) were added to the cigarette filter in the same way. Each sample compared the adsorption efficiency of VOCs through GC-MS and TGA data after smoking to study N-doping on carbon aerogels affects the adsorption of VOCs.