콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Polyelectrolyte-Triggered Transformation of Various Types of AgBr Microstructures into AgBr Nanophotocatalysts with a Single Shape and Size
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2014-07
- 저자명 Yi Seul Lee, Ha-Jin Lee, Won San Choi*
- 학술지명 Langmuir
- 발행처명 ACS Publications
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
- 논문 다운로드 링크(외부) https://doi.org/10.1021/la502378z
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
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.
