Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 17, Pages 5988-5991Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp40306d
Keywords
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Funding
- JPSJ of Japan [23111715, 23740299]
- Grants-in-Aid for Scientific Research [23740299] Funding Source: KAKEN
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The photo-sensitive self-motion of a benzoquinone (BQ) disk was investigated on a hydroquinone (HQ) aqueous solution. The mode-switching of self-motion, i.e., continuous -> intermittent -> no motion, was observed with an increase in the concentration of HQ. Upon irradiation with UV light (similar to 254 nm), the critical concentrations of HQ that were associated with the three modes of motion shifted to lower values, and the average speed of motion decreased. We discuss the mechanism of the photo-sensitive self-motion in relation to the photochemical reaction from BQ to HQ and the driving force of the disk.
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