Polyelectrolyte-triggered transformation of various types of AgBr microstructures into AgBr nanophotocatalysts with a single shape and size

AgBr nanostructures with unified shapes and sizes were prepared using simple polyelectrolyte (PE) coatings on various AgBr microstructures that were prepared by mixing silver precursors with hexadecyltrimethylammonium bromide (CTAB) under controlled conditions. The AgBr microstructures (plates, rods...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 31 vom: 12. Aug., Seite 9584-90
1. Verfasser: Lee, Yi Seul (VerfasserIn)
Weitere Verfasser: Lee, Ha-Jin, Choi, Won San
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a AgBr nanostructures with unified shapes and sizes were prepared using simple polyelectrolyte (PE) coatings on various AgBr microstructures that were prepared by mixing silver precursors with hexadecyltrimethylammonium bromide (CTAB) under controlled conditions. The AgBr microstructures (plates, rods, and wires), regardless of initial structures or sizes, transformed into cubic AgBr nanoparticles (CNPs) after only three PE coatings. The electrostatic interactions between the PEs and the CTAB in the AgBr microstructures are the crucial factors that control the shapes and sizes of the AgBr microstructures. During the PE coating, the AgBr microstructures were transformed and rearranged into AgBr CNPs with favorable catalytic faces that enhanced the photocatalytic activity. The size- and shape-controlled AgBr CNPs showed excellent photocatalytic performance for the degradation of methylene orange (MO) dyes under visible-light irradiation without deterioration even after multiple uses 
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700 1 |a Choi, Won San  |e verfasserin  |4 aut 
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