Enhanced adsorption of hexavalent chromium from aqueous solutions on facilely synthesized mesoporous iron-zirconium bimetal oxide

- We established a facile co-precipitation method to prepare an innovative mesoporous iron-zirconium bimetal oxide (MIZO).
- The adsorption properties of MIZO for Cr(VI) was studied.
- We found MIZO has much better Cr(VI) removal than ordinary iron-zirconium bimetal oxide and most previous reported adsorbents, in terms of adsorption capacity, the effect of pH and coexistent anions, etc.
- Our synthesis procedure will promote the synthesized adsorbent to form uniform pore distribution with large pore size, high zeta potential and thus enhance the adsorption.