School of Mechanical Engineering, Chung-Ang University , Seoul 156-756, Korea.
Langmuir. 2017 Apr 18;33(15):3818-3823. doi: 10.1021/acs.langmuir.7b00510. Epub 2017 Apr 3.
Recently, extremely small bubbles, referred to as nanobubbles, have drawn increased attention due to their novel properties and great potential for various applications. In this study, a novel method for the generation of bulk nanobubbles (BNBs) was introduced, and stability of fabricated BNBs was investigated. BNBs were created from CO gas with a mixing method; the chemical identity and phase state of these bubbles can be determined via infrared spectroscopy. The presence of BNBs was observed with a nanoparticle tracking analysis (NTA). The ATR-FTIR spectra of BNBs indicate that the BNBs were filled with CO gas. Furthermore, the BNB concentration and its ζ-potential were about 2.94 × 10 particles/mL and -20 mV, respectively (24 h after BNB generation with a mixing time of 120 min). This indicates the continued existence and stability of BNBs in water for an extended period of time.
最近，由于具有新颖的性质和在各种应用中的巨大潜力，极小的气泡（称为纳米气泡）引起了越来越多的关注。在这项研究中，引入了一种生成体相纳米气泡（BNBs）的新方法，并研究了所制备的 BNBs 的稳定性。使用混合方法从 CO 气体中生成 BNBs；可以通过红外光谱确定这些气泡的化学性质和相态。使用纳米颗粒跟踪分析（NTA）观察到了 BNBs 的存在。BNBs 的 ATR-FTIR 光谱表明，BNBs 中充满了 CO 气体。此外，BNB 的浓度及其 ζ-电位分别约为 2.94×10 个粒子/mL 和-20 mV（在混合时间为 120 分钟的情况下，生成 BNB 24 小时后）。这表明 BNB 在水中的存在和稳定性可以持续很长时间。
