Adsorption of rare earth ions using carbonized polydopamine nano carbon shells

• 作 者: 孙晓琦 LUO Huimin Shannon M.Mahurin LIU Rui HOU Xisen DAI Sheng
• 机 构: Chemical Sciences Division Oak Ridge National Laboratory,Xiamen Institute of Rare Earth Materials Ha
• 出 处: Journal of Rare Earths
• 发表日期: 2016年01期
• 关键词: shells Adsorption desorption spheres grafted attributed acidity dopamine carbony

Herein we reported the structure effects of carbon nano-shells prepared by the carbonization of polydopamine for the adsorption of rare earth elements(REEs) for the first time. Solid carbon spheres, 60 nm carbon shells and 500 nm carbon shells were prepared and evaluated for adsorption and desorption of REEs. The adsorption performance of carbon nano-shells for REEs was far superior to the solid carbon spheres. In addition, the effect of acidity on the adsorption and desorption properties was discussed. The good adsorption performance of the carbon nano-shells could be attributed to their pore structure, specific surface area, and the presence of both amine and carbonyl groups from the grafted dopamine.

Herein we reported the structure effects of carbon nano-shells prepared by the carbonization of polydopamine for the adsorption of rare earth elements (REEs) for the first time. Solid carbon spheres, 60 nm carbon shells and 500 nm carbon shells were prepared and evaluated for Adsorption and desorption of REEs. The adsorption performance of carbon nano-shells for REEs was far superior to the solid carbon spheres. In addition, the effect of acidity on the adsorption and desorption properties was discussed. The good adsorption performance of the carbon nano- shells could be attributed to their pore structure, specific surface area, and the presence of both amine and carbonyl groups from the grafted dopamine.