CO2 dual roles in food scraps-derived biochar activation to enhance lead adsorption capacity

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO2 Capture

“…Such a cycle could be repeated 15 times (Figure e), during which the CO 2 adsorption capacity presented a slight increase in the first 3 cycles. This increase might be explained by the fact that the captured CO 2 could act as an activator to produce more pore structures in MgO·FeO x @NSC, , thus enhancing the physical interactions between CO 2 and the adsorbent. As calculated from the results in Figure S3, the pore volumes were calculated to be 0.305, 0.339, and 0.392 cm 3 /g for the initial adsorbent, the adsorbent after 5 cycles of reuse, and the adsorbent after 15 cycles of reuse, respectively.…”

Adsorption of phosphate over a novel magnesium-loaded sludge-based biochar

“…However, there is limited research on the use of SBC for P adsorption, possibly due to its low adsorption capacity for phosphate in wastewater, so modification of SBC is necessary. At present, there are modification methods such as inorganic salt treatment, inorganic acid-base treatment [ 14 ], activation [ 15 ], and other biomass impurities. Among them, metal impurity treatment is the most widely used, such as Al, Fe, Lanthanum (La) and other impurities, but it can cause further pollution, and the modification object is generally activated carbon or wooden biochar [ 10 , 16 , 17 ].…”