期刊
ACS OMEGA
卷 4, 期 2, 页码 3534-3538出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.8b03234
关键词
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资金
- National Natural Science Foundation of China [21371178, 51772198]
- Jiangsu Province Science Foundation for Distinguished Young Scholars [BK20150032]
- project of scientific and technologic infrastructure of Suzhou [SZS201708]
Bioinspired superhydrophobic substrates have been used in many scientific and technological areas. These substrates can trap atmosphere-linked air pockets at the solid-liquid interface, offering an opportunity to address the oxygen-deficit problem in many reaction systems. Herein, we addressed the oxygen-deficit problem in metal oxide electrochemical deposition by using a triphase electrode possessing an air-liquid-solid joint interface. Oxygen in the interface is directly available from the air phase for sufficient OH- production via oxygen cathodic reaction, thereby offering us a green approach to fabricate two-dimensional mesoporous ZnO nanoarrays over a wide range of current densities. Further, because metal oxides are deposited at the triphase interface, sufficient O-2, a natural electron scavenger required in photocatalytic reaction to suppress the recombination of photogenerated electron-hole pairs, can be directly supplied, and we demonstrated their enhanced photocatalytic reaction kinetics in water remediation. The present work highlights a powerful interface-engineering strategy for fabricating metal oxides with unprecedented photocatalytic ability.
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