Scalable basswood-based PDA/GO-embedded self-assembly membrane within multilayered artemisinin-imprinted nanocage for high-selectivity cascading adsorption and transport

Abstract

Membrane-based separations can improve energy efficiency and reduce the environmental impact associated with conventional methods. However, conventional adsorbents encapsulate most of their functional sites in their dense structures, leading to issues of low selectivity and adsorption capacity. To overcome the above problems, the scalable basswood-based PDA/GO-embedded self-assembly membranes were prepared based a multilayer artemisinin (Ars)-imprinted nanocage (MA/SB-P/G-ESMs) for highly selective adsorption and transport to Ars. The double-layer imprinting strategy of graphene oxide based on polydopamine and κ-carrageenan using three-dimensional mesoporous basswood as the support membrane improved the effective imprinting platform. The final MA/SB-P/G-ESMs were prepared by a heat-initiated radical polymerization, acrylamide was used as a functional monomer to conveniently and efficiently form specific recognition sites on the membrane. Notably, the outcomes demonstrated that, despite interference with other rivals, MA/SB-P/G-ESMs displayed perfect rebinding selectivity (λ = 2.67, 2.89, 2.35) and perm-selectivity (β = 8.16, 5.43, 6.51) for Ars. The high regeneration rate (after 10 cycles, greater than93%) demonstrated the MA/SB-P/G-ESMs' practical application potential. The selective separation of Ars using the MA/SB-P/G-ESM preparation method showed substantial promise in this work.