Development of chemically engineered porous metal oxides for phosphate removal

Phosphate removal from water using freshly formed Fe–Mn binary oxide: Adsorption behaviors and mechanisms

“…After ferric sulfate was dissolved in 200 mL of deionized water, the solution pH was adjusted to 7-8 under magnetic stirring. The HMO was synthesized using MnSO 4 and KMnO 4 with a molar ratio of 3:2. The pH of final solutions also ranged between 7 and 8 using NaOH solution adjustment.…”

“…This is very favorable for its engineering applications in the treatment of water or wastewater, especially the remediation of phosphate-contaminated water body. Among various oxides, iron and manganese (hydr) oxides are well known due to their affinity towards phosphate [4,15]. However, until now, very little is known about the adsorption behaviors of phosphate on freshly formed Fe-Mn binary oxide.…”

Phosphate removal using modified Bayoxide® E33 adsorption media

“…The quickest, easiest, and most economically known method for the removal of phosphate ions is adsorption. 16 To date, a number of different adsorbents have been investigated for phosphate removal including metal oxides, [16][17][18][19][20][21][22] red mud, [23][24][25] steel slag, [26][27][28] and fly ash. 29,30 Table 1 shows different phosphate adsorbents and their reported adsorption capacity at different parameters.…”

Fabrication of free-standing bio-template mesoporous hybrid film for high and selective phosphate removal

“…Al, Fe, etc.) doped or modified materials for increase the selectivity of phosphate adsorption has become an increasing area of research, attributed to the specific adsorption mechanism between metal active sites and phosphate [2,[16][17][18]. Among them, lanthanum (La)-doped mesoporous silicon materials attract a great amount of attention as promising phosphate sorbents considering the advantages such as a superior adsorption capacity (more than 20 mg g À1 ), high selectivity, and high removal rate especially [19,20].…”