Supplementary Information files for "The fate of plasma-generated oxygen atoms in aqueous solutions: non-equilibrium atmospheric pressure plasmas as an efficient source of atomic O(aq)"

These are the Supplementary Files for the article "The fate of plasma-generated oxygen atoms in aqueous solutions: non-equilibrium atmospheric pressure plasmas as an efficient source of atomic O(aq)" with abstract:Non-equilibrium radio-frequency driven atmospheric-pressure plasma in He/0.6%O2 gas mixture has been used to study the reaction mechanism of plasma-generated oxygen atoms in aqueous solutions. The effluent from the plasma source operated with standard and 18O-labeled O2 gas was used to treat water in the presence of phenol as a chemical probe. Comparing the mass spectrometry and gas chromatography-mass spectrometry data of the solutions treated with plasma under normal and labeled oxygen provides clear evidence that O(aq) originating from the gas phase enters the liquid and reacts directly with phenol, without any intermediate reactions. Additionally, the atmospheric-pressure plasma source demonstrates great potential to be an effective source of O(aq) atoms without the requirement for any precursors in the liquid phase.

本数据集为《等离子体生成氧原子在水溶液中的命运：非平衡大气压等离子体作为高效原子氧(aq)来源》一文的补充文件。该文摘要指出，在氦/0.6%氧气体混合物中，非平衡射频驱动的大气压等离子体已被用于研究等离子体生成氧原子在水溶液中的反应机制。采用标准及^18O标记的氧气作为反应气体，从等离子体源输出的尾气用于处理含有苯酚的溶液，苯酚作为化学探针。通过比较处理等离子体溶液在正常氧及标记氧条件下的质谱及气相色谱-质谱数据，清晰揭示了源自气相的氧原子(aq)直接进入液相并与苯酚反应，而无需任何中间反应。此外，大气压等离子体源展现出作为高效氧原子(aq)来源的巨大潜力，且无需液相中存在任何前体物质。