| 초록 |
Naphthol is widely used as chemical sources or additives in medicines, dyes, perfumes, and antioxidants. Currently, naphthol is mainly produced by sulfonation/alkali-fusion from naphthalene, and this process, however, is time-consuming and can produce toxic byproducts causing environmental pollution. Thus, direct hydroxylation of naphthalene to naphthol has attracted much attention. A highly active nanostructured copper–iron oxide (CuFe) catalyst has been synthesized for direct oxydation of naphthalene to naphthol under mild reaction conditions. The catalysts were characterized by XRD, SEM, EDX, XAFS and N2 physisorption. The influence of the reaction conditions such as types of solvent, reaction time, and amount of H2O2 oxidant, were investigated. The activity tests results indicated that the CuFe outperformed single metal oxide catalysts. Under optimized conditions, the activity test over CuFe catalyst resulted in naphthalene conversion of 25% with naphthol selectivity of 63%. |
