Flower-like CuO hierarchical nanostructures: synthesis, characterization, and property

doi:10.1007/s12200-012-0293-7

Front Optoelec

2012, Vol. 5

Issue (4) : 429-434 https://doi.org/10.1007/s12200-012-0293-7

RESEARCH ARTICLE

Flower-like CuO hierarchical nanostructures: synthesis, characterization, and property

Jiarui HUANG(

), Feng TANG, Cuiping GU(

), Chengcheng SHI, Muheng ZHAI

College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China

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Abstract

Nanoflake-based flower-like CuO nanostructures have been synthesized through thermal decomposition of [Cu(NH₃)₄]²⁺ solution without any surfactants and catalysts at low temperature. The products are characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM). The possible formation process based on the aggregation-recrystallization mechanism is proposed. Finally, the obtained flower-like CuO hierarchical nanostructures have been used as the photocatalyst in the experiments. It is found that the as-prepared flower-like CuO hierarchical nanostructures exhibit superior photocatalytic property on photocatalytic decomposition of Rhodamine B due to their hierarchical structures.

Keywords cupric oxide (CuO) microflowers hierarchical nanostructures photocatalytic property

Corresponding Author(s): HUANG Jiarui,Email:jrhuang@mail.ahnu.edu.cn; GU Cuiping,Email:cpgu2008@mail.ahnu.edu.cn

Issue Date: 05 December 2012

Cite this article:

Jiarui HUANG,Feng TANG,Cuiping GU, et al. Flower-like CuO hierarchical nanostructures: synthesis, characterization, and property[J]. Front Optoelec, 2012, 5(4): 429-434.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-012-0293-7
https://academic.hep.com.cn/foe/EN/Y2012/V5/I4/429

Fig.1 XRD pattern of as-prepared product

Fig.2 (a) and (b) SEM images of as-precipitates obtained through thermal decomposition of [Cu(NH)] solution

Fig.3 SEM images of as-precipitates obtained through thermal decomposition of [Cu(NH)] solution obtained after hydrothermal reaction at 80°C for (a) 15 min; (b) 0.5 h; (c) 1.5 h

Fig.4 Schematic illustration of formation process and shape evolution of flower-like CuO hierarchical nanostructures

Fig.5 (a) Absorption spectrum and photodecomposition of Rhodamine B solution (10 mg/L, 50 mL) in presence of flower-like CuO hierarchical nanostructures under UV irradiation. Insets are the photodegradation plots of Rhodamine B under UV-light, in which is the concentration of Rhodamine B and is the initial concentration; (b) simplified scheme of Pyronine B photodegradation under irradiation of 365 nm UV light in presence of CuO

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