. 2019 Jun 21;4(6):10834–10844. doi: 10.1021/acsomega.9b00981

Table 4. Comparison of Co²⁺ and Ni²⁺ Adsorption Capacity of PAM, Na-MMT, and the PAM/Na-MMT Nanocomposite.

adsorbent	Co²⁺ removal yield (%)^a	Ni²⁺ removal yield (%)^b
polyacrylamide (PAM)	87.40	90.20
sodium montmorillonite (Na-MMT)	89.17	94.50
PAM/Na-MMT nanocomposite	98.67	99.30

pH = 6 and C_o = 60 ppm.

pH = 6 and C_o = 100 ppm.

Table 4. Comparison of Co2+ and Ni2+ Adsorption Capacity of PAM, Na-MMT, and the PAM/Na-MMT Nanocomposite.