Comparison of the catalytic conditions and efficiency of the AuNS/pulp with reported data^a.

Catalyst	TOF (min−1)	k (s−1)	4-NP (μmol)	NaBH4/4-NP ratio	Temperature (°C)	Metal amount (μmol)	Recycling runs	Ref.
AuNS/pulp	0.158	6.8 × 10−3	5	100	RT	21.1	15	This work
Au/SnNb2O6	0.106	19.4 × 10−3	4.3	767	RT	10.1	—	53
Graphene/PDA-Au	0.384	3.7 × 10−3	1	1320	RT	0.2	—	54
Ni@PtNi NSc-rGO	—	4.5 × 10−3	0.5	1000	24.8	—	5	55
Ag/CH-FP	0.008	3.9 × 10−3	2	100	RT	21.3	5	41

^aTOF: turnover frequency.