Facile preparation of core–shell magnetic Fe3O4@ZIF-8-PSS for organic dye adsorption

A novel core–shell Fe 3 O 4 @ZIF-8-PSS adsorbent was synthesized by a one-step method. The maximum adsorption capacity for cationic dye crystal violet (CV) can reach 382 mg g −1 , and the adsorbent can be magnetically separated and recovered within 10 s.