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  • Generation of Ag2O micro-/nanostructures by pulsed excimer laser ablation of Ag in aqueous solutions of polysorbate 80.

Generation of Ag2O micro-/nanostructures by pulsed excimer laser ablation of Ag in aqueous solutions of polysorbate 80.

Langmuir : the ACS journal of surfaces and colloids (2010-12-18)
Zijie Yan, Ruqiang Bao, Douglas B Chrisey
ABSTRACT

A new route to synthesis of Ag(2)O micro-/nanostructures, including a mixture of cubes, pyramids, triangular plates, pentagonal rods, and bars, has been developed by pulsed excimer laser ablation of bulk silver in water using polysorbate 80 as surfactant. The polysorbate 80 played an important role in the formation of the Ag(2)O structures, and similar structures could be obtained in polysorbates 20 and 40 aqueous solutions. We have proposed a mechanism to explain the formation of Ag(2)O structures. This laser ablation method provides a unique approach to discover and fabricate new Ag(2)O morphologies.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Silver oxide, predominantly silver(II) oxide
Sigma-Aldrich
Silver(I) oxide, ≥99.99% trace metals basis
Sigma-Aldrich
Silver(I) oxide, purum p.a., ≥99.0% (AT)
Sigma-Aldrich
Silver(I) oxide, ReagentPlus®, 99%