It is common to empirically correlate volumetric mass transfer coefficient

k

L

a

for predicting gas-liquid mass transfer in industrial applications

and the investigation of single bubble mass transfer is crucial for a detailed understanding of mass transfer mechanism. In this work

experiments

models and simulations based on the experimental results were highlighted to elucidate the mass transfer between single bubbles and ambient liquid. The experimental setups

measurement methods

the mass transfer of single bubbles in the Newtonian and the nonNewtonian liquid

models derived from the concept of eddy diffusion

the extension of Whitman's

Higbie's and Danckwerts' models

or dimensionless numbers

and simulation methods on turbulence

gas-liquid partition methods and mass transfer source term determination are introduced and commented on. Although people have a great knowledge on mass transfer between single bubbles and ambient liquid in single conditions

it is still insufficient when facing complex liquid conditions or some phenomena such as turbulence

contamination or non-Newtonian behavior. Additional studies on single bubbles are required for experiments and models in various liquid conditions in future.