Facet‐Dependent Photocatalytic Activity and Facet‐Selective Etching of Silver(I) Oxide Crystals with Controlled Morphology. Issue 1 (30th October 2014)

• Record Type: Journal Article
• Authors: Harn, Yeu‐Wei; Yang, Tung‐Han; Tang, Tsung‐Yeh; Chen, Miao‐Chun; Wu, Jenn‐Ming
• Is Part Of: ChemCatChem. Volume 7:Issue 1(2015:Jan.)
• Page Start: 80
• Page End: 86
• Publication Date: 2014-10-30
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201402747
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The shape of Ag₂O crystals that evolve from edge and corner‐truncated cubes into rhombicuboctahedrons, then to hexapods can be conducted precisely by simply controlling the amount of AgNO₃, NH₄NO₃ and NaOH precursors. The edge and corner‐truncated cube crystals possess the highest photocatalytic activity, followed by the rhombicuboctahedrons, then the hexapods. The photocatalytic activity of the Ag₂O crystals depends greatly on the type of the exposed facets. The {1 0 0} facets exhibit the highest photocatalytic activity in methyl orange solution under full‐spectrum light irradiation, followed by the {1 1 0} facets, then the {1 1 1} facets. The {1 0 0} facets are also demonstrated to show intense susceptibility toward etching by NH₃.</p> </abstract>