Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology
Ultrafine bubbles (bulk nanobubbles), small bubbles with a diameter of less than 1 μm, have attracted academic and industrial attention because of their numerous advantages, including their chemical-free nature and extraordinarily long lifetime. The long lifetime is related to the much higher Browni...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hosokawa Powder Technology Foundation
2023-03-01
|
| Series: | KONA Powder and Particle Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/kona/41/0/41_2024004/_html/-char/en |
| _version_ | 1827572773288935424 |
|---|---|
| author | Keiji Yasuda |
| author_facet | Keiji Yasuda |
| author_sort | Keiji Yasuda |
| collection | DOAJ |
| description | Ultrafine bubbles (bulk nanobubbles), small bubbles with a diameter of less than 1 μm, have attracted academic and industrial attention because of their numerous advantages, including their chemical-free nature and extraordinarily long lifetime. The long lifetime is related to the much higher Brownian motion velocity compared to buoyancy. The reason why ultrafine bubbles can endure under stable conditions is still unclear, even though their inside is highly pressured. They have several characteristics, such as pH-dependent surface charge and reduced friction. They are also closely related to ultrasound. Ultrafine bubbles are generated and removed by selecting the ultrasonic frequency. Reaction and separation using ultrasonic cavitation and atomization, respectively, are enhanced by ultrafine bubbles. They can produce hollow nanoparticles, enhance adsorption on activated carbon, and clean solid surfaces. This review discusses the fundamental and ultrasonic characteristics of ultrafine bubbles and their application in particle-related technology, encompassing fine particle synthesis, adsorption, desorption, extraction, cleaning, and prevention of fouling. |
| first_indexed | 2024-03-07T19:29:22Z |
| format | Article |
| id | doaj.art-d81e96d5ef29465f9077207c69d23dbb |
| institution | Directory Open Access Journal |
| issn | 0288-4534 2187-5537 |
| language | English |
| last_indexed | 2024-03-07T19:29:22Z |
| publishDate | 2023-03-01 |
| publisher | Hosokawa Powder Technology Foundation |
| record_format | Article |
| series | KONA Powder and Particle Journal |
| spelling | doaj.art-d81e96d5ef29465f9077207c69d23dbb2024-02-29T09:01:04ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372023-03-0141018319610.14356/kona.2024004konaCharacteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related TechnologyKeiji Yasuda0Department of Chemical Systems Engineering, Nagoya University, JapanUltrafine bubbles (bulk nanobubbles), small bubbles with a diameter of less than 1 μm, have attracted academic and industrial attention because of their numerous advantages, including their chemical-free nature and extraordinarily long lifetime. The long lifetime is related to the much higher Brownian motion velocity compared to buoyancy. The reason why ultrafine bubbles can endure under stable conditions is still unclear, even though their inside is highly pressured. They have several characteristics, such as pH-dependent surface charge and reduced friction. They are also closely related to ultrasound. Ultrafine bubbles are generated and removed by selecting the ultrasonic frequency. Reaction and separation using ultrasonic cavitation and atomization, respectively, are enhanced by ultrafine bubbles. They can produce hollow nanoparticles, enhance adsorption on activated carbon, and clean solid surfaces. This review discusses the fundamental and ultrasonic characteristics of ultrafine bubbles and their application in particle-related technology, encompassing fine particle synthesis, adsorption, desorption, extraction, cleaning, and prevention of fouling.https://www.jstage.jst.go.jp/article/kona/41/0/41_2024004/_html/-char/enultrafine bubblesbulk nanobubblesultrasoundsonochemistryfine particle synthesiscleaning |
| spellingShingle | Keiji Yasuda Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology KONA Powder and Particle Journal ultrafine bubbles bulk nanobubbles ultrasound sonochemistry fine particle synthesis cleaning |
| title | Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology |
| title_full | Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology |
| title_fullStr | Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology |
| title_full_unstemmed | Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology |
| title_short | Characteristics of Ultrafine Bubbles (Bulk Nanobubbles) and Their Application to Particle-Related Technology |
| title_sort | characteristics of ultrafine bubbles bulk nanobubbles and their application to particle related technology |
| topic | ultrafine bubbles bulk nanobubbles ultrasound sonochemistry fine particle synthesis cleaning |
| url | https://www.jstage.jst.go.jp/article/kona/41/0/41_2024004/_html/-char/en |
| work_keys_str_mv | AT keijiyasuda characteristicsofultrafinebubblesbulknanobubblesandtheirapplicationtoparticlerelatedtechnology |