Insight into the effect of structural characteristics of magnetic ZrO2/Fe3O4 nanocomposites on phosphate removal in water

Synthesis of nano-zirconium-iron oxide supported by activated carbon composite for the removal of Sb(v) in aqueous solution

“…The surface of zirconia has a special pore structure, which is favourable to the diffusion of Sb( v ) in the pores. Due to the unique affinity between zirconium and antimony, 13 the adsorption effect is better when the zirconium content is high. In summary, modified activated carbon with a molar ratio of zirconium to iron ions of 1 : 1 will be selected for a series of characterization and adsorption tests.…”

“…The saturation magnetization of ZIC is 1.89 emu g −1 , the magnetism exhibits superparamagnetic behaviour, and there is no remanence or coercivity. 13 It can still be quickly separated from the environment in an externally enhanced magnetic environment.…”

An in situ grown amorphous ZrO2 layer on zeolite for enhanced phosphate adsorption

“…S5a †). The type IV isotherm veries the presence of diversied adsorptive behaviours, involving monolayer adsorption, multilayer adsorption and capillary condensation, 32 which are characteristics of mesoporous materials. Observably, the isotherm of ZEO@AZ exhibits a narrow hysteresis loop over the region of 0.4 < P/P 0 < 1, demonstrating the persistent capillary evaporation and condensation on N 2 during the adsorption processes.…”

Enhanced removal of ibuprofen by heterogeneous photo-Fenton-like process over sludge-based Fe3O4-MnO2 catalysts

“…In the test range, as the magnetic field increases, the magnetic performance becomes more obvious. Both of them cross the zero point, indicating that they do not have remanence and coercivity, and the two sludge-based catalysts have superparamagnetic properties (Wang et al 2020). Under the action of a magnetic field, it can be easily separated from the aqueous solution by magnetization (Wang et al 2021).…”