The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Highly Efficient Light-Driven TiO2–Au Janus Micromotors
Abstract
A highly efficient light-driven photocatalytic TiO2-Au Janus micromotor with wireless steering and velocity control is described. Unlike chemically propelled micromotors which commonly require the addition of surfactants or toxic chemical fuels, the fuel-free Janus micromotor (diameter ∼1.0 μm) can be powered in pure water under an extremely low ultraviolet light intensity (2.5 × 10(-3) W/cm(2)), and with 40 × 10(-3) W/cm(2), they can reach a high speed of 25 body length/s, which is comparable to common Pt-based chemically induced self-electrophoretic Janus micromotors. The photocatalytic propulsion can be switched on and off by incident light modulation. In addition, the speed of the photocatalytic TiO2-Au Janus micromotor can be accelerated by increasing the light intensity or by adding low concentrations of chemical fuel H2O2 (i.e., 0.1%). The attractive fuel-free propulsion performance, fast movement triggering response, low light energy requirement, and precise motion control of the TiO2-Au Janus photocatalytic micromotor hold considerable promise for diverse practical applications.
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Cites
Electrochemical Photolysis of Water at a Semiconductor Electrode
FUJISHIMA, A., & HONDA, K. (1972) · Nature · doi:10.1038/238037a0 · Cited by 34,169
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
O'Regan, B., & Grätzel, M. (1991) · Nature · doi:10.1038/353737a0 · Cited by 28,599
Purcell, E. M. (1977) · American Journal of Physics · doi:10.1119/1.10903 · Cited by 4,360
Freitas, S., Merkle, H. P., & Gander, B. (2005) · Journal of Controlled Release · doi:10.1016/j.jconrel.2004.10.015 · Cited by 923
Cited by
Fuel‐Free Synthetic Micro‐/Nanomachines
Xu, T., Gao, W., Xu, L., Zhang, X., & Wang, S. (2017) · Advanced Materials · doi:10.1002/adma.201603250 · Cited by 417
Self-citationPhotocatalytic TiO 2 Micromotors for Removal of Microplastics and Suspended Matter
Wang, L., Kaeppler, A., Fischer, D., & Simmchen, J. (2019) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.9b06128 · Cited by 389
Metadata
- Authors
- Dong, R., Zhang, Q., Gao, W., Pei, A., & Ren, B.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-11-30
- Volume
- 10
- Issue
- 1
- Pages
- 839-844
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2175589339
- Cited by
- 487
- References
- 4
- FWCI
- 23.85
- Type
- journal article
- Language
- en
- Open access
- closed
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