Synthesis and Characterization of Acrylic Acid-g-(𝜅-Carrageenan) Copolymer and Study of Its Application

Table 2

Metal ion sorption.

Sample Code	%𝐺	Percent ion uptake (𝑃𝑢)					Partition coefficient (𝐾𝑑)					Retention capacity (𝑄𝑟)
		Cu^2+	Ni^2+	Zn^2+	Pb^2+	Hg^2+	Cu^2+	Ni^2+	Zn^2+	Pb^2+	Hg^2+	Cu^2+	Ni^2+	Zn^2+	Pb^2+	Hg^2+
C	—	3.1	2.1	1.8	4.1	1.0	16.1	5.4	4.8	10.8	5.2	1.5	0.50	0.5	1.0	0.5
CAA1	330	5.18	4.73	3.80	4.16	3.27	27.35	24.83	19.76	21.73	16.91	2.5	2.3	2.0	2.1	1.6
CAA2	336	7.88	6.79	5.32	6.15	4.49	42.79	36.42	28.11	32.76	23.55	3.8	3.3	2.8	3.1	2.2
CAA3	380	9.54	8.43	7.60	8.13	6.33	52.75	46.06	41.15	44.27	33.84	4.6	4.1	4.0	4.1	3.1
CAA4	510	8.09	7.40	5.13	6.94	4.90	44.01	40.00	27.05	37.31	25.80	3.9	3.6	2.7	3.5	2.4
CAA5	535	4.97	4.11	2.66	3.57	2.45	26.20	21.46	13.67	18.51	12.57	2.4	2.0	1.4	1.8	1.2