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xiaofu119

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[交流] 【讨论】ZnO光催化

有没有做ZnO光催化的啊？讨论一下吧

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最新的ZnO系列空心球光催化－ACS Nano

http://pubs.acs.org/cgi-bin/arti ... html/nn800353q.html

ABSTRACT A weak acid selective etching strategy was put forward to fabricate oxide-based hollow
nanoparticles (HNPs) using core/shell nanostructures of active metal/oxide nanoparticles as sacrificial templates.
ZnO-based HNPs, including pure ZnO, Au/ZnO, Pt/ZnO, and Au/Pt/ZnO HNPs with diameter below 50 nm and shell
thickness below 6 nm has been first achieved at low temperature. The diameter, thickness, and even sizes of ZnO
and noble metal ultrafine crystals of HNPs can be well adjusted by the etching process. Synchronous with the
formation of HNPs, the internal metalsemiconductor interfaces can be controllably eliminated (ZnZnO) and
reconstructed (noble metalZnO). Excitingly, such microstructure manipulation has endued them with giant
improvements in related performances, including the very strong blue luminescence with enhancement over 3
orders of magnitude for the pure ZnO HNPs and the greatly improved photocatalytic activity for the noble metal/
ZnO HNPs. These give them strong potentials in relevant applications, such as blue light emitting devices,
environment remediation, drug delivery and release, energy storage and conversion, and sensors. The designed
fabrication procedure is simple, feasible, and universal for a series of oxide and noble metal/oxide HNPs with
controlled microstructure and improved performances.