Department of Civil and Environmental Engineering, The Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
Department of Civil and Environmental Engineering, The Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
Sci Total Environ. 2021 Sep 1;785:147362. doi: 10.1016/j.scitotenv.2021.147362. Epub 2021 Apr 27.
The present study has two primary goals, the first goal is to investigate a bibliometric analysis and assess the trends to evaluate the global scientific production of microbubbles and nanobubbles from 2000 to 2020. The aim is to elucidate the cornucopia of benefits the two technologies (micro and nanobubbles) can offer in environmental sciences and environmental amelioration such as wastewater treatment, seed germination, separation processes, etc. The second goal is to explicate the reason behind every chart and trend through environmental engineering perspectives, which can confer value to each analysis. The data was acquired from the Web of Science and was delineated by VOS viewer software and GraphPad Prism. Considering 1034 publications in the area of micro-and nanobubbles, this study was conducted on four major aspects, including publication growth trend, countries contribution assessment, categories, journals and productivity, and keywords co-occurrence network analysis. This article revealed a notable growth in microbubbles and nanobubbles-related publications and a general growth trend in published articles in a 20-year period. China had the most significant collaboration with other countries, followed by the USA and Japan. The most dominant categories for microbubbles were environmental sciences and environmental engineering comprising 22.5% of the total publications, while multidisciplinary subjects such as nanotechnology and nanosciences (8%) were among the dominant categories for nanobubbles. Keyword's analysis results showed that microbubbles had reached the apex since their discovery. Consequently, they are being used mostly in water/wastewater treatment or environmental improvement. On the other hand, nanobubbles are still in their infancy, and their pervasive use is yet to be fully materialized. Most of the publications are still striving to understand the nature of nanobubbles and their stability; however, a critical analysis showed that during the past two years, the trend of using nanobubbles as a cost-effective and environmentally friendly approach has already begun.
本研究有两个主要目标，第一个目标是通过文献计量学分析评估 2000 年至 2020 年全球微泡和纳泡的科学产出趋势。旨在阐明这两种技术（微泡和纳泡）在环境科学和环境改善方面的广泛应用，如废水处理、种子发芽、分离过程等。第二个目标是通过环境工程的视角解释每一个图表和趋势背后的原因，这可以为每个分析提供价值。数据来自 Web of Science，并通过 VOS viewer 软件和 GraphPad Prism 进行了描绘。本研究考虑了微纳米气泡领域的 1034 篇出版物，从四个主要方面进行了研究，包括出版增长趋势、国家贡献评估、类别、期刊和生产力以及关键词共现网络分析。本文揭示了微泡和纳泡相关出版物的显著增长，以及 20 年期间出版文章的总体增长趋势。中国与其他国家的合作最为密切，其次是美国和日本。微泡的主要类别是环境科学和环境工程，占总出版物的 22.5%，而纳米技术和纳米科学等多学科领域（8%）则是纳泡的主要类别。关键词分析结果表明，微泡自发现以来已经达到了顶峰。因此，它们主要用于水/废水处理或环境改善。另一方面，纳泡仍处于起步阶段，其广泛应用尚未完全实现。大多数出版物仍在努力理解纳泡的性质及其稳定性；然而，一项批判性分析表明，在过去两年中，已经开始将纳泡作为一种具有成本效益和环境友好的方法来使用。
