Superparamagnetic nalidixic acid grafted magnetite (Fe₃O₄/NA) for rapid and efficient mercury removal from water

Abstract

A new nanomaterial, nalidixic acid grafted magnetite (Fe3O4/NA), was synthesized via a chemical reaction with nano sized magnetite particles.

Tunable auto-combustion preparation of TiO2nanostructures as efficient adsorbents for the removal of an anionic textile dye

“…38,60 Besides, the plateau behavior might be due to the saturation of the limited number of the adsorption sites at high initial concentrations. 61 Additionally, the experimentally obtained adsorption results were examined using the Langmuir and Freundlich adsorption isotherm models presented in eqn (9) and (10), respectively.…”

Development of hollow δ-FeOOH structures for mercury removal from water

“…The change in solution pH results in the formation of different aqueous Hg(II) species, including Hg 2þ , HgOH þ , and Hg(OH) 2 (Lu et al 2014), and different hollow δ-FeOOH surface charges. When the mercury solution pH is below the PZC of hollow δ-FeOOH (PZC ¼ 4.72, Figure 4(b)), the surface of hollow δ-FeOOH is positively charged and interacts very weakly with mercury cations, due to protonation of the surface functional groups, and competition between the mercuric and H þ ions present in the solution (Husnain et al 2016). On the other hand, when pH exceeded the PZC, the hollow δ-FeOOH surface was negatively charged and more functional groups were available for metal cation binding due to deprotonation, resulting in electrostatic attraction between Hg(II) and hollow δ-FeOOH.…”

A strain ofStreptomycessp. isolated from rhizospheric soil ofCrataegus oxycanthaproducing nalidixic acid, a synthetic antibiotic

“…Recently, its use was reported to develop supermagnetic nalidixic acid‐grafted magnetite (Fe 3 O 4/ NA) for rapid and efficient mercury removal from water (Husnain et al . ).…”

“…Resistance to nalidixic acid is also used as an indicator of decreased susceptibility to the fluoroquinolones (Hakanen et al 1999). Recently, its use was reported to develop supermagnetic nalidixic acid-grafted magnetite (Fe 3 O 4/ NA) for rapid and efficient mercury removal from water (Husnain et al 2016).…”