Mesoporous composite Ni-C-N/SA for selective adsorption of methylene blue from water

A mesoporous Ni-C-N/Silica aerogel (Ni-C-N/SA) was prepared by impregnation of the cationic [Ni(tepa)]2+ complex onto a negatively charged silica aerogel support followed by suitable thermal treatment. And Ni-C-N/SA was applied as an adsorbent for selective adsorption of methylene blue (MB). When [Ni(tepa)]2+ loading is 20% and thermal treatment temperature is 400 °C (denoted “NiT20-400/SA”), the adsorption of MB by NiT20-400/SA is 54 mg/g,...