3D Bioplotter Research Papers

In this study, a 3D-printed graphene oxide (GO)/calcium alginate (CA) hybrid network (3D GO/CA) with excellent U(VI) adsorption performance was constructed using direct ink writing-based 3D printing technology and in situ calcium ion cross-linking technology. The GO and CA sheets in 3D GO/CA were stacked layer by layer. Meanwhile, the 3D multilayered pore structure with large-scale characteristics was constructed. Furthermore, the pore structure was orderly arranged, with abundant active adsorption sites (oxygen-containing functional groups/Ca2+ binding sites) exposed. The adsorption experiment results showed that 3D GO/CA exhibited a wide valid pH range (3-12) and excellent adsorption capacity for U(VI) in a…

Using three-dimensional (3D) printing technology, a 3D calcium alginate/graphene oxide (3D CA/GO) adsorbent, with a hierarchical macroporous structure, was successfully constructed. Owing to the optimized construction process, the 3D CA/GO showed an enhanced adsorption capacity (490.2 mg/g at pH = 3.0) for lead (Pb(II)) in aqueous solution, which was two times higher than reported in the literature). Meanwhile, the selective adsorption ratio of 3D CA/GO for Pb(II) reached 99.8% when positive ions occurred. In addition, after eight adsorption–desorption cycles, the adsorption capacity did not experience a significant decrease and the structure remained stable. Meanwhile, the adsorbed Pb(II) could be eluted…