TY - JOUR AU - Sarno, Maria AU - Ponticorvo, Eleonora PY - 2018/10/01 Y2 - 2024/03/29 TI - Cu-Graphene Nanostructures for Low Concentration CH3SH Removal JF - Chemical Engineering Transactions VL - 68 SP - 487-492 SE - Research Articles DO - 10.3303/CET1868082 UR - https://www.cetjournal.it/index.php/cet/article/view/CET1868082 AB - Mercaptans are molecules with high volatility, responsible for unpleasant odours. They have a very low olfactory threshold, e.g. for CH3SH of ~0.39 ppbv. In this paper, copper oxide nanoparticles supported on graphene were synthesized for the removal of low-concentration CH3SH (5 ppm). That results show that the humidity has a significant impact on the elimination of odors. The adsorption ability grows at increasing conditions of relative humidity (RH). The adsorption capacity at RH = 80 % is 2 or 5 times higher than that shown at RH = 4 %. The surface of CuO nanoparticles is highly responsible for the formation of hydrated complexes that are effective in the acquisition of CH3SH. ER -