Chrysene 및 Pyrene 유도체를 합성하였고, 열적 안정성은 phenanthrene기를 도입한 BC6이 mp: 406oC 이었다. 용액상태에서 Host-Dopant 시스템으로 각각의 분광특성을 측정하여 NP5-BC1, NP5-BC5 system이 우수한 결과를 얻을 수 있었고, 이들의 밴드갭은 3.04, 2.66, 2.67eV 이었다.

The photodegradations of pyrene, chrysene and benzo[a]pyrene that were similar in structure among polycyclic aromatic hydrocarbons (PAHs) were investigated with a low-pressure mercury lamp(the wavelength of 253.7 nm and UV output of 1.35x10-3 J/s). The optimum concentrations of TiO2 and H2O2 on the photodegradation of pyrene, chrysene and benzo[a]pyrene were 1 g/L and 1.5 x 10-3 M, respectively. By these optimum concentrations, their rates increased with increasing the concentration of TiO2 and H2O2 because the amounts of OH radical formed increased, but for the higher concentrations than the optimum, their rates decreased with increasing those concentrations because the white turbidity phenomena occurs in case of TiO2 and H2O2 acts as an OH radical inhibitor. The photodegradation rates among the photodegradation processes such as UV, UV/TiO2, UV/H2O2, and UV/H2O2/TiO2 decreased in the following sequences: UV/H2O2/TiO2> UV/H2O2> UV/TiO2> UV.

The photodegradation of pyrene, chrysene and benzo[a]pyrene, that were similar in structure among polycyclic aromatic hydrocarbons (PAHs), were investigated in water irradiated with a low-pressure mercury lamp (wavelength of 253.7nm and UV output of 1.35×10-3J/s). The effects of several factors (t-BuOH, HCO3- and pH) on photodegradation of above three PAHs were also examined. The photodegradation rates of PAHs decreased with increasing the concentration of t-BuOH, but decreased little with increasing the concentration of HCO3- under the concentrations used in this study. The photodegradation rates of PAHs decreased with increasing pH, but their change were greater in case of pH increase from acid to neutral and were little in case of pH increase from neutral to base. The photodegradation rates of PAHs fitted a first-order kinetic model and their photodegradation rates decreased in the following sequences: pyrene>chrysene>benzo[a]pyrene among the PAHs used.