Magnetic Fe3O4/ZnCr-layered double hydroxide composite with enhanced adsorption and photocatalytic activity

Efficient removal of dyes by a novel magnetic Fe3O4/ZnCr-layered double hydroxide adsorbent from heavy metal wastewater

“…Although great success has been achieved in the magnetic composite, the application in purification of heavy metal wastewater through formation of this composite is still difficult due to Al 3+ in the structure of LDH. We have lately reported the synthesis of magnetic Fe 3 O 4 /ZnCr-layered double hydroxide composite with enhanced adsorption and photocatalytic activity [20]. Thus, we discovered that this novel material combines the best of both worlds: (A) heavy metal ions could be tightly bound in the crystal lattice of ferrite and LDH, and (B) Fe 3 O 4 /ZnCr-layered double hydroxide composite have the potential for the further environmental application.…”

Adsorption of Cd(II) by Mg–Al–CO3- and magnetic Fe3O4/Mg–Al–CO3-layered double hydroxides: Kinetic, isothermal, thermodynamic and mechanistic studies

“…To improve the efficiency of separation, magnetic separation technology (i.e., applying an external magnetic field to perform the separation) has attracted much attention [23][24][25]. As a result, introducing magnetic properties to the adsorbent has become a research hotspot, and many researchers have synthesized magnetic Fe 3 O 4 /LDHs to enhance the separation of adsorbents from aqueous solution after adsorption [26][27][28][29][30].…”

Magnetic calcinated cobalt ferrite/magnesium aluminum hydrotalcite composite for enhanced adsorption of methyl orange

“…Layered double hydroxides (LDHs) are a class of two-dimensional nanostructured anionic clays [16,17], and have been widely used as adsorbents for the removal of anionic contaminant owing to the high charge density of the sheets and the exchangeability of the interlayer anions as well [18][19][20][21].…”