Combustion of isopropyl alcohol using a green manufactured CuFe2O4

► A green method for manufacturing CuFe2O4 was developed from industrial Cu sludge. ► The green manufactured CuFe2O4 was effective for combustion of isopropyl alcohol. ► 96-h decay test shows the catalyst has a good thermal stability and durability. ► Magnetic property may solve the catalyst recovery problem in fluidized system. ► This work achieved the goal of clean production and sustainable development.