Modification of sugar-based carbon using lanthanum and cobalt bimetal species for effective adsorption of methyl orange

• DOI: 10.1016/j.eti.2021.101769
• Publication Date: 2021-07-03T15:29:11Z
• Authors: Xi Liu; Yiting Wu; Huilan Ye; Jia Chen; Wei Xiao; Weiming Zhou; Zaharaddeen N. Garba; Ibrahim Lawan; Liwei Wang; Zhanhui Yuan
• Keywords: Methyl orange; Bimetal; Lanthanum; Endothermic process; Langmuir adsorption model

Abstract Herein, an economical sugar-based carbon synthesized in the previous study was modified using lanthanum and cobalt bimetal species by a simple method for the first time. The obtained adsorbent named La/Co-SC was analyzed using some classical characterization techniques. Results obtained indicate that the specific surface area and pore volume of the La/Co-SC are higher than the original sugar-based carbon (SC). Additionally, the La/Co-SC exhibits an excellent adsorption performance with methyl orange (MO), which is about 2.5 times better than the original SC. Further investigations reveal that the adsorption process is endothermic and it obeyed the pseudo-second order kinetic model and Langmuir isotherm model. Moreover, the La/Co-SC shows a good regeneration ability, indicating its great potential as an economical and environmental-friendly adsorbent.