论文部分内容阅读
Plasma processing induced by discharge offers a unique way to activate nitrogenmolecules.Direct nitrogen fixation into water can be realized through this approach.In thisstudy,air or pure nitrogen gas was used as the major nitrogen source bubbled into the dischargereactor.When a discharge occurred,nitrogen was dissociated to active species to take part in theaqueous chemical process.HNO3 and HNO_2 were produced.The nitrogen fixation process wasinfluenced distinctly by the presence of hydroxyl radicals.During a discharge of 21 min,HNO_3was the main product and occupied 95% of the total nitrogen content in water.Its concentrationwas 1.36×10~(-3)mol/L~(-1)with bubbling air and was 1.53×10~(-3)mol L~(-1)with bubbling nitrogen,while the yield was 2.32×10~(-8)mol J-~1S~(-1)and 2.06×10~(-8)mol J~(-1)S~(-1),respectively.
Plasma processing induced by discharge offers a unique way to activate nitrogen molecules. Direct nitrogen fixation into water can be realized through this approach. In this study, air or pure nitrogen gas was used as the major nitrogen source bubbled into the discharge reactor. nitrogen was dissociated to active species to take part in the aqueous chemical process. HNO 3 and HNO 2 were produced. The nitrogen fixation process was fluidly distinct from the presence of hydroxyl radicals. During a discharge of 21 min, HNO 3 was the main product and occupied 95% of the total nitrogen content in water.Its concentration was 1.36 × 10 ~ (-3) mol / L -1 with bubbling air and was 1.53 × 10 ~ (-3) mol L -1 with bubbling nitrogen, while the yield was 2.32 × 10 ~ (-8) mol J- ~ 1S ~ (-1) and 2.06 × 10 ~ (-8) mol J ~ (-1) S ~ (-1) respectively.