How Bulk Nanobubbles Might Survive

被引：91

作者：

Tan, Beng Hau ^{[1
,2
]}

An, Hongjie ^{[3
]}

Ohl, Claus-Dieter ^{[4
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore

[2] Singapore MIT Alliance Res & Technol, Low Energy Elect Syst, 1 Create Way, Singapore 138602, Singapore

[3] Griffith Univ, Queensland Micro & Nanotechnol Ctr, 170 Kessels Rd, Nathan, Qld 4111, Australia

[4] Otto von Guericke Univ, Inst Expt Phys, Univ Pl 2, D-39016 Magdeburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 13期

基金：

澳大利亚研究理事会;

关键词：

AQUEOUS-SOLUTIONS; ELECTROPHORETIC MOBILITY; SURFACE-TENSION; LONG LIFETIME; WATER; STABILITY; COALESCENCE; GENERATION; BUBBLES; PHASE;

D O I：

10.1103/PhysRevLett.124.134503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The existence of bulk nanobubbles has long been regarded with scepticism, due to the limitations of experimental techniques and the widespread assumption that spherical bubbles cannot achieve stable equilibrium. We develop a model for the stability of bulk nanobubbles based on the experimental observation that the zeta potential of spherical bubbles abruptly diverges from the planar value below 10 mu m. Our calculations recover three persistently reported-but disputed-properties of bulk nanobubbles: that they stabilize at a typical radius of similar to 100 nm, that this radius is bounded below 1 mu m, and that it increases with ionic concentration.

引用

页数：6

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