Simple-Structured Micromotors Based on Inherent Asymmetry in Crystalline Phases: Design, Large-Scale Preparation, and Environmental Application

• DOI: 10.1021/acsami.9b03579
• Publication Date: 2019-04-16T17:29:42Z
• Authors: Jianhua Zhang; Fangzhi Mou; Zhen Wu; Shaowen Tang; Huarui Xie; Ming You; Xiong Liang; Leilei Xu; Jianguo Guan
• Keywords: Rutile

The key principle of designing a micro/nanomotor is to introduce asymmetry micro/nanoparticle. However, micro/nanomotors designed based on external and inherent chemical geometrical usually suffer from tedious small-scale preparation, high cost, and/or complexity power control devices, making them face insurmountable hurdles in practical applications. Herein, considering the possible distinct properties different polymorphs, we propose novel design strategy simple-structured micromotors by introducing crystalline phases. phase can be easily introduced spherical TiO2 particles adjusting calcination temperature transition growth primary grains. as-designed anatase/rutile not only show efficient autonomous motions controlled light liquid media stemming asymmetric surface photocatalytic redox reactions but also have promising application environmental remediation due their activity "on-the-fly" degradation organic pollutants, facile large-scale fabrication, low cost. proposed may pave way for productions applications micro/nanomotors.