Anionic polypeptide poly(γ-glutamic acid)-functionalized magnetic Fe3O4-GO-(o-MWCNTs) hybrid nanocomposite for high-efficiency removal of Cd(II), Cu(II) and Ni(II) heavy metal ions

Novel magnetically separable anhydride-functionalized Fe3O4@SiO2@PEI-NTDA nanoparticles as effective adsorbents: synthesis, stability and recyclable adsorption performance for heavy metal ions

“…Fe 3 O 4 in the prepared composites has a face-centered cubic structure, 33,34 which is consistent with the JCPDS card (le no. 19-0629).…”

Preparation of the crosslinked GO/PAA aerogel and its adsorption properties for Pb(II) ions

“…In particular, Graphene oxide (GO) has become one of the important research hotspots in the field of adsorption research due to its large specific surface area. In recent years, some researchers have modified graphene to obtain new adsorbents [23][24][25]. Graphene has a high specific surface area, so it is very suitable as an adsorbent, and GO also has this advantage, but the separation and reuse of GO from the system limits its use [26].…”

Adsorption of divalent cadmium by calcified iron-embedded carbon beads

“…18 The loaded manganese oxide or iron oxide material proved to have an excellent removal rate and easy recyclability. [19][20][21] However, migration and surface agglomeration of metal nanoparticles might occur during loading, so it is necessary to wrap singlemetal nanoparticles with inert material to prevent the agglomeration of metal particles. 22 Carbon shell is a common coating material that not only stabilizes the internal metal particles, but also facilitates the solute diffusion, due to its mesoporous structure.…”