Synthesis of a New Copper-Based Supramolecular Catalyst and Its Catalytic Performance for Biodiesel Production

Table 1

The catalytic activity of the catalysts.

Entry	Catalyst	FAME%
1	β-CD (native)	nd
2	Cu(SO4)2^.5H2O	nd
3	Cu(SO4)2^.5H2O+β-CD; (simple physical mixture)^a	nd
4
5	CuO	nd
6	Cu-β-CD	88.6

Condition of reaction: the ratio of methanol-oil: 40 : 1; the amount of catalyst: 8 wt.%; reaction temperature: 120°C; reaction time: 9 h; ^aphysical mixing; nd: not detected; FAME%: the data of biodiesel production percentages.