Catalytic efficiency of Av-AuNPs, size, reaction time and rate constant for the reduction of 4-NP and degradation of MB, MO, DB24, BrPB and Rh6G respectively^a.

Organic pollutant/dyes	Catalyst	Size (nm)	Reaction time (sec)	k (s−1)	Ref.
4-NP	Au@NiAg	10	270	0.0266	41
	Au/graphene hydrogel	14.6	720	0.0032	42
	AuNPs	17	1040	0.0026	43
	Au@Fe3O4 yolk shell	15	300	0.0155	44
	Sr-AuNPs	16	240	0.5098 min−1	45
	CA-AuNPs	22 ± 16	2280	0.0522 min−1	23
	Fv-AuNPs	≈20	1440	0.123 min−1	46
	Av-AuNPs	8 ± 5	180	1.55 × 10−3	P.S.
MB	CA-AuNPs	22 ± 16	840	0.052 min−1	23
	Sr-AuNPs	16	3600 (≤50% degradation)	0.0118	45
	Fv-AuNPs	≈20	1380	0.0529 min−1	46
	SA-AuNPs	26	720	0.0431 min−1	39
	Av-AuNPs	8 ± 5	120	1.92 × 10−3	P.S.
MO	DC-AuNPs	≈10.5	600	1.7 × 10−3	47
	Pg-AuNPs	18	900	0.383 min−1	48
	SA-AuNPs	26	720	0.0451 min−1	39
	Av-AuNPs	8 ± 5	120	3 × 10−2	P.S.
DB24	SA-AuNPs	26	1080	0.006 min−1	39
	Av-AuNPs	8 ± 5	60	8.5 × 10−3	P.S.
BrPB	—	—	—	—	—
	Av-AuNPs	8 ± 5	120	0.32 × 10−3	P.S.
Rh6G	—	—	—	—	—
	Av-AuNPs	8 ± 5	180	3.1 × 10−3	P.S.

^aP.S. = present study.