Atomic ratios on the surface of the chromatography paper and AuNS/pulp catalyst^a.

Sample	Oα/(O*)	Oβ/(O*)	Oc/(O*)	C1/(C*)	C2/(C*)	C3/(C*)	C4/(C*)
Chromatography paper	0.57	0.37	0.06	0.44	0.09	0.37	0.10
AuNS/pulp	0.53	0.41	0.06	0.32	0.07	0.53	0.08

^aO* = O_α + O_β + O_c; C* = C₁ + C₂ + C₃ + C₄.