One-Pot Green Synthesis of Ag-Decorated SnO2 Microsphere: an Efficient and Reusable Catalyst for Reduction of 4-Nitrophenol

Table 2 Comparison of normalized rate (κ _nor) of different catalysts for the reduction of 4-NP (at room temperature)

Catalyst	κ _app (min⁻¹)	κ _nor (min⁻¹g⁻¹L)	Ref.	Issue
Au/TiO₂	0.17	0.34	[47]	J Catal
Core-shell Ag@Pt	0.15	0.92	[48]	J Catal
Ag/KCC-1	0.6	9	[49]	J Catal
Au/PMMA	0.43	3.25	[50]	J Mol Catal A-Chem
meso-Co₃O₄	~0.018	0.23	[51]	Appl. Catal. B: Environ
Co@SiO₂	0.82	4.08	[52]	Inorg. Chem.
rGO/Fe₃O₄/Au	0.69	0.52	[53]	Phys. Chem. Chem. Phys
AgNPs/GR-G3.0PAMAM	1.30	0.78	[54]	J Mol Catal A-Chem
Ag	0.3	1.30	[55]	J. Phys. Chem. C
Ag	0.20	0.29	[56]	Catal Sci Technol
Ag	0.13	0.007	[57]	J Alloy Compd
SnO₂	0.05	0.04	[58]	Mater. Lett.
SnO₂/Ag (36 h)—1st	3.10	6.20	This work	–
SnO₂/Ag (36 h)—5th	0.32	0.64	This work	–
SnO₂/Ag (36 h)—10th	0.28	0.54	This work	–
Pure SnO₂	1.24	2.48	This work	–
Pure Ag	1.16	2.32	This work	–