Extraction and Characterization of Natural Dye from Green Walnut Shells and Its Use in Dyeing Polyamide: Focus on Antibacterial Properties
Figure 2
Chemical structures of the extracted dye from the walnut shells with different solvents: (a) -hexane/petroleum ether (90 : 10, v/v), , (b) petroleum ether/diethyl ether (50 : 50, v/v), , and (c) petroleum ether/diethyl ether (55 : 45, v/v), .
