Nanocarbon materials for oxidative-adsorptive desulfurization using air oxygen under mild conditions

A new oxidative-adsorptive desulfurization (OADS) process using graphene oxide (GO) and HNO3 modified carbon black (mCB) as adsorbents, and octanal-air as oxidation system was investigated under mild conditions in model fuel. High desulfurization uptakes of 45.1 and 45.4 mg-S/g-sorb were achieved under OADS system on GO and mCB, which are much higher than that under adsorptive desulfurization system without in situ oxidation of dibenzothiophene. The desulfurization capacity of GO could be completely regenerated in three recycles.97