Facet‐Dependent Photocatalytic Activity and Facet‐Selective Etching of Silver(I) Oxide Crystals with Controlled Morphology | Zendy

Harn YeuWei | Zendy; Yang TungHan | Zendy; Tang TsungYeh | Zendy; Chen MiaoChun | Zendy; Wu JennMing | Zendy

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Facet‐Dependent Photocatalytic Activity and Facet‐Selective Etching of Silver(I) Oxide Crystals with Controlled Morphology

Author(s) -

Harn YeuWei,

Yang TungHan,

Tang TsungYeh,

Chen MiaoChun,

Wu JennMing

Publication year - 2015

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201402747

Subject(s) - photocatalysis , facet (psychology) , methyl orange , materials science , oxide , etching (microfabrication) , morphology (biology) , crystallography , nanotechnology , irradiation , chemical engineering , photochemistry , chemistry , physics , catalysis , organic chemistry , psychology , social psychology , genetics , layer (electronics) , biology , nuclear physics , engineering , personality , metallurgy , big five personality traits

The shape of Ag 2 O crystals that evolve from edge and corner‐truncated cubes into rhombicuboctahedrons, then to hexapods can be conducted precisely by simply controlling the amount of AgNO 3 , NH 4 NO 3 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 Ag 2 O 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 NH 3 .

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