Removal of Chromium(VI) Using Surface Modified Superparamagnetic Iron Oxide Nanoparticles

Lanthanide sorbent based on magnetite nanoparticles functionalized with organophosphorus extractants

“…The absorption bands at 711, 731 and 805 cm −1 of Cyanex 301 assigned to the S = P vibrations [22] cannot be observed in the spectrum.…”

“…Optimum conditions are required for magnetite precipitation, among them a final pH of 9, which assures the synthesis of a nanoparticulate material with superior magnetic properties [16–18, 22]. …”

Surface modified composite nanofibers for the removal of indigo carmine dye from polluted water

“…18,19 Furthermore, in our earlier work we have also demonstrated that Fe 3 O 4 nanoparticles have high potential to be used as adsorbents, either in the form of pristine nanoparticles or aer modifying the surface with organic reagents. [20][21][22] However, separation of the nanoparticles (adsorbent) from the treated solution limits the process development. One of the plausible strategies is to immobilize the nanoparticles on a exible substrate such as nanobers in order to eliminate the nanoparticles separation and their loss to the environment.…”

Preparation of Amidoxime Adsorbent by Radiation Induced Grafting of Acrylonitrile on Polyethylene Film and Its Application in Cr(VI) Removal

“…15 For this purpose, many types of adsorbents have been investigated for the removal of chromium including activated carbon, biomaterials and nanomaterials. [15][16][17][18][19][20][21][22][23][24] Recently, many researchers have focused attention on grafted polymers as alternative heavy metal adsorbent. [25][26][27][28][29][30][31][32][33][34][35] "Grafting" is a method in which functional monomers are covalently bonded onto the backbone polymer chain.…”