The interaction between passive SiO2 particles and active metal capped swimmers induced by photocatalytic activity was studied previously and in our earlier work. We found that the interactions between micromotors with passive particles differ among the swimming modes, which leads to different behaviours in different fuels. For instance, as shown in the insets of Figure , in the mixture of active (Cu@TiO2) and passive (SiO2) particles in water, it exhibited little interaction between single active and passive particles. In peroxide solution (Figure ), passive particles can be collected based on phoretic interaction, forming certain patterns. Here, for the magnetic Au@Ni@TiO2 particles, we also find that the interactions between catalytic micromotors with passive particles exist and behave similar to the Cu@TiO2 micromotors. Especially pronounced in H2O2, phoretic interactions with passive particles enable assembling of larger motile structures as well as motion of passive structures (see the model in Figure ), similar behaviour has been reported in very different systems and origins of this behaviour and the differences among the fuels are currently under research and to be considered in a separate work. Herein, this phoretic interaction induced by photocatalytic activity, which displays collective behaviours for passive particles, provides huge potential for environment pollutants, microplastics, collecting and removal.