Facile Fabrication of Bubble-Propelled Micromotors
Carrying Nanocatalysts for Water Remediation
Version 2 2018-03-23, 20:08
Version 1 2018-03-23, 20:05
Posted on 2018-03-23 - 20:08
A facile
and flexible approach is developed to fabricate bubble-propelled
mesoporous micromotors carrying nanocatalysts for efficient water
remediation. The micromotors are prepared by simply coating the hemispherical
surface of Fe3O4-nanoparticle-containing mesoporous
SiO2 microparticles with a polydopamine layer for decorating
Ag nanoparticles, based on the versatile adhesion and reduction properties
of polydopamine. The Fe3O4 nanoparticles can
produce OH radicals from H2O2 for pollutant
degradation via Fenton reaction, whereas the mesoporous SiO2 matrix provides large surface area with anchored Fe3O4 nanoparticles for improved degradation performance. Moreover,
the Ag nanoparticles can decompose H2O2 into
oxygen bubbles for powering the movement of micromotors to further
enhance the pollutant degradation. The micromotors that synergistically
integrate these functions enable efficient degradation of pollutants,
such as methylene blue demonstrated in this work, for water remediation.
This approach offers a simple and versatile strategy for creating
micromotors with flexible compositions and structures for applications
in water remediation, drug delivery, and cargo transport.
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Li, Zhi-Lu; Wang, Wei; Li, Ming; Zhang, Mao-Jie; Tang, Meng-Jiao; Su, Yao-Yao; et al. (2018). Facile Fabrication of Bubble-Propelled Micromotors
Carrying Nanocatalysts for Water Remediation. ACS Publications. Collection. https://doi.org/10.1021/acs.iecr.7b04941
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AUTHORS (10)
ZL
Zhi-Lu Li
WW
Wei Wang
ML
Ming Li
MZ
Mao-Jie Zhang
MT
Meng-Jiao Tang
YS
Yao-Yao Su
ZL
Zhuang Liu
XJ
Xiao-Jie Ju
RX
Rui Xie
LC
Liang-Yin Chu