Liu H J, Zhou Z F, Liu W P
Environmental Science Institute, Zhejiang University, Hangzhou 310027, China.
J Environ Sci (China). 2001 Jul;13(3):361-4.
Kinetic processes of alpha-naphthaleneacetic acid (NAA) photolysis were studied under different conditions. The results showed that the ultraviolet light was more effective than fluorescent light in promoting degradation, and the degradation of NAA under ultraviolet light followed the first order kinetics with the photolysis rate constant of 1.15 x 10(-2) min-1 and half-life time (t1/2) of 60 min. Further, it was proved that the photolysis rate was higher in the presence of oxygen, titanium dioxide (TiO2), and low pH (acidic solution). At last, two photolysis intermediates were identified by GC-MS and possible photolysis pathways were proposed.
在不同条件下研究了α-萘乙酸（NAA）的光解动力学过程。结果表明，紫外光在促进降解方面比荧光更有效，紫外光下NAA的降解遵循一级动力学，光解速率常数为1.15×10⁻² min⁻¹，半衰期（t₁/₂）为60分钟。此外，证明了在有氧、二氧化钛（TiO₂）和低pH（酸性溶液）存在的情况下光解速率更高。最后，通过气相色谱-质谱联用仪（GC-MS）鉴定了两种光解中间体，并提出了可能的光解途径。
