Degradation of unsymmetrical dimethylhydrazine by O_3/VUV
真空紫外光臭氧降解偏二甲肼的研究

The widely used propellant unsymmetrical dimethylhydrazine(UDMH) was treated with three ozone-based advanced oxidation processes(AOPs),i.e.O3,O3/UV and O3/VUV.Among them,the most efficient process was O3/VUV,and its rate constant was 39.8% and 65.6% higher than O3/UV and O3 respectively.Meanwhile,the degradation intermediate i.e.formaldehyde could also be removed fastest in the O3/VUV process and its concentration was lowered to be undetectable within 50 min.The dependence of reaction efficiency on several ...