A series of polyacrylamide/polyanionic cellulose/Zr–CP (PAM/PAC/Zr–CP) composite hydrogels were prepared via acrylamide polymerization in aqueous solution of PAC and disodium terephthalate (Na2BDC), followed by posttreatment in 0.1 M ZrOCl2 solution. The coordination of Zr(IV) clusters with carboxylates on PAC and BDC2− endows the hydrogels with improved strength and adsorption of methyl orange (MO). Specially, over 5 MPa of compressive strength and 500 mg MO/g Zr of MO-adsorption capacity are attained. This work provides a facile and green approach to synthesize CP-based composite hydrogels with enhanced mechanical and adsorptive properties through strong metal–ligand coordination.
- Chaolun Zheng
- Jianquan Wang
- Ziqiang Shao
