Table 2.

Comparison of the k_app, Ea, ∆S^# and ∆H^# values of previously reported catalysts for reduction of MO.

Entry	Catalyst	kapp (min−1)	Ea (kJ/mol)	∆S# (J/mol.K)	∆H# (kJ/mol)	Ref.
1	CSIOAga	6 * 10−4 (s−1)	76.10	−29.20	73.60	32
2	IOAgb	NR	102.4	+41	99.9	32
3	CuO nanostructure (35 °C)	1 * 10−2	59.84	−96.20	57.20	33
4	Co:La:TiO2 (30 ºC)	7.72 * 10−3	NR	−69.15	35.33	34
5	TiO2 (30 ºC)	5.26 * 10−3	NR	−69.76	24.07	34
6	Fe3O4/Hal-Mel-TEA(IL)-Pd	4.5 * 10−2 (s−1)	42.02	−139.06	39.40	This work

a: Ag-coated chitosan-capped γ-Fe₂O₃

b: CSIOAg catalyst without chitosan

NR: Not reported.