Abstract：
Gaseous nanobubbles (NBs) with dimensions ranging from 1 to 1000 nm in the liquid phase have garnered significant interest due to their unique physicochemical characteristics, including specific surface area, low internal gas pressure, long-term stability, efficient mass transfer, interface potential, and free radical production. These remarkable properties have sparked considerable attention in the scientific community and industries alike. These hold immense promise for environmental applications, especially for carbon-neutral water remediation. Their long-lasting stability in aqueous systems and efficient mass transfer properties make them highly suitable for delivering gases in the vicinity of pollutants. This potential has prompted research into the use of NBs for targeted delivery of gases in contaminated water bodies, facilitating the degradation of harmful substances and advancing sustainable remediation practices. However, despite significant progress in understanding NBs physicochemical properties and potential applications, several challenges and knowledge gaps persist. This review thereby aims to summarize the current state of research on NBs environmental applications and potential for remediation. By discussing the generation processes, mechanisms, principles, and characterization techniques, it sheds light on the promising future of NBs in advancing environmental sustainability. It explores their role in improving oxygenation, aeration, and pollutant degradation in water systems. Finally, the review addresses future research perspectives, emphasizing the need to bridge knowledge gaps and overcome challenges to unlock the full potential of this frontier technology for enhanced environmental sustainability.
摘要：
在液相中尺寸为1至1000nm的气态纳米气泡（NBs）由于其独特的物理化学特性而引起了人们的极大兴趣。包括比表面积，内部气体压力低，长期稳定，有效的传质，界面电位，和自由基的产生。这些非凡的特性在科学界和工业界都引起了相当大的关注。这些对环境应用有着巨大的希望，特别是对碳中性水的修复。它们在水性系统中的持久稳定性和有效的传质性能使它们非常适合在污染物附近输送气体。这种潜力促使人们研究使用NB在受污染的水体中定向输送气体，促进有害物质的降解和推进可持续的补救做法。然而,尽管在理解NB的物理化学性质和潜在应用方面取得了重大进展，一些挑战和知识差距仍然存在。因此，这篇综述旨在总结NBs环境应用和修复潜力的研究现状。通过讨论生成过程，机制,原则,和表征技术，它揭示了NB在推进环境可持续性方面的有希望的未来。它探讨了它们在改善氧合方面的作用，曝气,和水系统中的污染物降解。最后,这篇综述阐述了未来的研究观点，强调需要弥合知识差距并克服挑战，以释放这一前沿技术的全部潜力，以增强环境可持续性。
