Halloysite@polydopamine/ZIF-8 Nanocomposites for Efficient Removal of Heavy Metal Ions

Table 3

Comparison of the calculated maximum adsorption capacity of heavy metal ions by various ZIF adsorbents.

Adsorbents	Qmax (mg/g)	Adsorbates	References
ZIF-8@GO	356	Pb^2+	Wang et al. [36]
ZIF@NiTiO3	155	Pb^2+	Akbarzadeh et al. [41]
HNTs@PDA/ZIF-8	515	Pb^2+	This work
ALG@ZIF-67	153.63	Cu^2+	Li et al. [42]
PVA/SA@ZIF-8	166.94	Cu^2+	Zhang et al. [43]
HNTs@PDA/ZIF-8	285	Cu^2+	This work
ZIF-8-EGCG	123.58	Cd^2+	Wen and Hu [44]
ZIF-8@Fe3O4	54.49	Cd^2+	Kuwer et al. [45]
HNTs@PDA/ZIF-8	185	Cd^2+	This work
ZIF-8	69.36	Ni^2+	Roostan et al. [46]
ZIF-8-EGCG	82.90	Ni^2+	Wen and Hu [44]
HNTs@PDA/ZIF-8	112.5	Ni^2+	This work