Modified PVA-alginate encapsulated photocatalyst ferro photo gels for Cr(VI) reduction

γ-Fe2O3 nanoparticles filled polyvinyl alcohol as potential biomaterial for tissue engineering scaffold

“…Magnetic nanoparticles which have been used in biomedical applications (Arbab et al, 2003;Wilhelm et al, 2003;Shimizu et al, 2007;Attaluri et al, 2011;Akiyama et al, 2010) such as cell sheet construction, cell expansion, magnetic cell seeding, cancer hyperthermia treatment, and drug delivery vehicle can be a possible option to enhance the properties of PVA when blended with it. Availability of magnetic nanoparticles within PVA scaffold will also increase its rigidity favourably (Shao et al, 2013;Idris et al, 2012). Of particular interest, this study introduces the use of γ-Fe 2 O 3 magnetic nanoparticles as the filler in PVA matrices blend.…”

Influence of Process Factors on Diameter of Core (γ-Fe2O3)/Shell (Polyvinyl Alcohol) Structure Magnetic Nanofibers During Co-Axial Electrospinning

“…Magnetic nanoparticles (c-Fe 2 O 3 ) were synthesized as described in Idris et al [27] This process combined ferrous and ferric chloride in stoichiometric in an ammonium hydroxide solution by alkaline co-precipitation. Fe 3 O 4 , which is a black precipitate was then acidified using nitric acid.…”

“…The precipitate was washed with acetone and finally dispersed in water resulting in the final stable state c-Fe 2 O 3 with a pH of 7. The maghemite nanoparticles were then characterized using TEM (JEOL-JSM 6390L) [27]. The size, shape, distribution, and polydispersity of the maghemite nanoparticles were found to be less than 20 nm, as shown in Figure 1a.…”

Preparation of TiO2/Silicalite-2@CoFe2O4 Magnetic Composites and Evaluation of their Photocatalytic Activity in Cr(VI) Removal

“…Iron oxide magnetic nanoparticles have been used as photocatalyst due to their capability of transforming metal ions to nontoxic substances such as Cr(VI) in polluted aqueous systems to Cr(III) (Idris et al 2011). The freshly prepared polyvinyl alcohol-alginate ferro photo gels illustrated the highest photocatalytic activity where Cr(VI) could be reduced to Cr(III) within 30 min compared to alginate magnetic beads (Idris et al 2012).…”