Research progress about the applications of self-propellant Janus particles in water environment

Abstract

Today, environmental sustainability is one of the important challenges that we are facing, especially in the field of water environment. Self-propelled micro-/nano- motors have two distinct physical or chemical properties, so that the huge gradient fields can be established across micro-/nano- motors under different external stimulation sources, which induce the self-propulsion of motors. This feature of self-propulsion holds the considerable promise for water environmental application. In this paper, we reviewed the recent research progress of self-propelled micro-/nano- motors in water environmental monitoring and water remediation. Furthermore, the relationship between the active transport, the membrane filtration processes and micro-/nano- motors’ motion mechanisms was also explored. In addition, the reclaiming methods of self-propelled Janus particles were discussed in order to seek a better way to improve their recycling rate and reduce the negative impact on the environment. Finally, we put forward some potential studies in this field.