Table 1.

BET surface area of the Au@ZnO–graphene composites.

	Commercial ZnO (m2 g−1)	ZnO NPs (m2 g−1)	ZnO NWs (m2 g−1)
Unmodified	18	67	167
1%Au–Graphene *	48	96	201
3%Au–Graphene *	51	103	212
5%Au–Graphene *	56	109	223
10%Au–Graphene *	65	117	247

* The amount of graphene in all the catalysts was 1 wt.%.