%0 Online Multimedia %A Liu, Wenjuan %A Ge, Hongbin %A Chen, Xiao %A Lu, Xiaolong %A Gu, Zhongwei %A Li, Jinxing %A Wang, Joseph %D 2019 %T Fish-Scale-Like Intercalated Metal Oxide-Based Micromotors as Efficient Water Remediation Agents %U https://acs.figshare.com/articles/media/Fish-Scale-Like_Intercalated_Metal_Oxide-Based_Micromotors_as_Efficient_Water_Remediation_Agents/8010845 %R 10.1021/acsami.9b01095.s003 %2 https://acs.figshare.com/ndownloader/files/14924354 %K surface area %K Fish-Scale-Like Intercalated Metal Oxide-Based Micromotors %K azo-dye waste solution %K MnO 2 surface structure %K Fe-related Fenton reaction %K FSI micromotor treatment %K 5 nm nanoparticles %K ramsdellite MnO 2 %K Fe 2 O 3 %K water remediation applications %K Mn 2 O 3 %K Efficient Water Remediation Agents %K nanomaterial %X With compelling virtues of a large specific surface area, abundant active sites, and fast interfacial transport, nanomaterials have been demonstrated to be indispensable tools for water remediation applications. Accordingly, micro/nanomotors made by nanomaterials would also benefit from these properties. Though tuning the surface architecture on demand becomes a hot topic in the field of nanomaterials, there are still limited reports on the design of active surface architectures in chemically driven tubular micro/nanomachines. Here, a unique architecture composed of a fish-scale-like intercalated (FSI) surface structure and an active layer with 5 nm nanoparticles is constructed, which composes of Fe2O3 and ramsdellite MnO2, Mn2O3, in the tubular micromotor using a versatile electrodeposition protocol. Tailoring the electrodeposition parameters enables us to modulate the active MnO2 surface structure on demand, giving rise to a pronounced propulsion performance and catalytic activity. Upon exposure to the azo-dye waste solution, the degradation efficacy greatly raises by around 22.5% with FSI micromotor treatment when compared to the normal compact motors, owing to the synergistic effect between the Fe-related Fenton reaction and a large catalytic area offered by the hierarchically rough inner surface. Such unique micromachines with a large active surface area have great potential for environmental and biomedical applications. %I ACS Publications