黄铜矿
纳米晶
模板
吸附
材料科学
甲基橙
纳米棒
纳米技术
产量(工程)
刻面
化学工程
结晶学
化学
光催化
物理化学
催化作用
冶金
有机化学
铜
工程类
作者
Dongfeng Zhang,Hua Zhang,Lin Guo,Kun Zheng,Xiaodong Han,Ze Zhang
摘要
In this work, we demonstrate the systematic and delicate geometry control of Cu2O nanocrystals by taking advantage of the selective surface stabilization effect. A variety of Cu2O architectures, evolved from cubes through truncated cubes, cubooctahedrons, truncated octahedrons and finally to octahedrons, were achieved by simply adjusting the added PVP. Based on the understanding of the intrinsic structural features of the cuprite Cu2O and PVP, we elucidated the underlying shape evolution mechanism. The as-prepared products demonstrated a crystallography-dependent adsorption ability with methyl orange (MeO) as the pollutant. With the advantage of a low cost, high yield and straightforward procedure without pre-formed crystals as sacrificial templates, this method may provide a good starting point for the study of shape construction and morphology-dependent properties of other nanocrystals.
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