Removal of phosphate from aqueous solution by magnetic Fe–Zr binary oxide

Enhanced adsorption of phosphate from aqueous solution by nanostructured iron(III)–copper(II) binary oxides

“…For instances, Al-Fe hydr(oxides) [18], Fe-Mn binary oxide [19], Fe-Zr binary oxide [20], mesoporous spheres containing iron and aluminum oxide [21], hydroxyliron-lanthanum doped activated carbon fiber [22] and Fe-Al-Mn trimetal oxide [23] have been reported for phosphate removal. The composite adsorbents possess superior adsorption performance since they inherit the advantages of their parent materials.…”

Physical–Chemical Processes for Phosphorus Removal and Recovery

“…To this end, the following magnetic carrier materials have been studied: magnetite, micron-sized carbonyl iron particles, zirconium ferrite, steel slag, and Fe-Zr binary oxide (Ishiwata et al, 2010;Long et al, 2011;Merino-Martos et al, 2011;Shaikh and Dixit, 1992;Xiong et al, 2008). In magnetic separation, the external magnetic force acts directly on the fine particles that carry the target chemicals such as phosphate.…”

Granulation of Cobalt-containing Nickel Hydroxide with Polyethylene Terephthalate and its Phosphate Ion Adsorption Capability

“…where q e and W s are the amount and maximum amount of adsorbed phosphate per unit weight of adsorbent (mg/g), C e is the residual concentration of adsorbate in bulk solution (mg/L), and a is the constant determined by plotting C e /q e versus C e [22,49]. The Freundlich isotherm is used to describe systems of heterogeneous nature [50,51].…”

“…log q e = log k + (1/n) log C e (6) where k (mg/g) and 1/n are constants related to the adsorbate and adsorbent, respectively, at a given temperature [22,49]. The adsorption isotherm data were fitted by both the Langmuir and Freundlich equations.…”