Highly Effective Degradation of Nitrophenols by Biometal Nanoparticles Synthesized using Caulis Spatholobi Extract

Table 1

Comparative reaction rate constants of the catalytic reduction of 2-NP and 3-NP using AgNPs and AuNPs as catalysts.

Type of NPs	MNPs	Plant	Particle size (nm)	Rate constant (sec^-1)	References
2-NP	AuNPs	Lobophora variegata	2-12	1.2.10^-3	[40]
	AgNPs	Codonopsis pilosula	10	2.5.10^-3	[41]
	AuNPs		20	1.2.10^-3
	AgNPs	Corncob	11	2.1.10^-3	[48]
	AuNPs		35	3.0.10^-3
	AgNPs	Caulis Spatholobi	16.4	2.5.10^-3	This work
	AuNPs		18.2	2.8.10^-3
3-NP	AuNPs	Lobophora variegata	2-12	4.5.10^-3	[40]
	AgNPs	Corncob	11	2.8.10^-3	[48]
	AuNPs		35	8.0.10^-3
	AgNPs	Codonopsis pilosula	10	1.7.10^-3	[41]
	AuNPs		20	4.0.10^-3
	AgNPs	Caulis Spatholobi	16.4	1.9.10^-3	This work
	AuNPs		18.2	6.0.10^-4