Simultaneous Intercalation of 1-Naphthylacetic Acid and Indole-3-butyric Acid into Layered Double Hydroxides and Controlled Release Properties

Table 2

The rate constant of fitting the release data to pseudo-second-order kinetics model.

𝑇 (°C)	pH	Medium	𝑘2 (min^−1·mg^−1·g)	𝑟^2
25	7	water	0.105	0.9999
37	7	water	0.160	0.9995
44	7	water	0.256	0.9995
25	4	water	0.130	0.9999
25	12	water	0.403	1
25	7	NaCl	0.126	0.9999
25	7	Na2SO4	0.235	1
25	7	Na2CO3	0.262	1