Synthesis of nano-hydroxyapatite chitin/chitosan hybrid biocomposites for the removal of Fe(III)

Biocomposites and hybrid biomaterials based on calcium orthophosphates

“…650 More complex formulations, such as silk fibers, reinforced HA/chitosan 834 and HA/collagen/chitosan 835 biocomposites, have been studied as well. Interestingly, hybrid biocomposites of nano-sized HA with chitin/chitosan might be used for removal of Fe(III) 836 and fluorides 837,838 from aqueous solutions. Further details on the biocomposites and hybrid biomaterials of calcium orthophosphates with chitosan are available in the literature.…”

“…Further details on the biocomposites and hybrid biomaterials of calcium orthophosphates with chitosan are available in the literature. 836 Biocomposites of CDHA with water-soluble proteins, such as BSA, might be prepared by a precipitation method. 561,[839][840][841][842] In such biocomposites, BSA is not strongly fixed to solid CDHA, which is useful for a sustained release.…”

Metal-doped apatitic calcium phosphates: preparation, characterization, and reactivity in the removal of hydrogen sulfide from gas phase

“…When CaP was added into the iron(III) nitrate solution for cationic exchange, the pH increased immediately to about 6. In these conditions, iron(III) could be exchanged with Ca(II), [31] and could be also precipitated on the surface of CaP particles. On the other hand, CEX method allowed only the partial deposition of lead(II) and zinc(II).…”

Cost Effective Adsorption of Aluminium and Iron from Synthetic and Real Wastewater by Rice Hull Activated Carbon (RHAC)

“…The pH 4.5 was selected as the optimum pH for aluminum ions removal by P. pavonica biomass [23]. Similarly, Kousalya et al [24] reported pH 3 to be the optimum pH for Fe(III) by nano-biocomposites. Also Quintelas et al [25] reported pH 3.5 as the optimum pH for ferric ions removal onto E. coli biofilm supported on kaolin.…”