A novel porous flower-like HA/Ag nanocomposite: One pot preparation and excellent performances as both SERS nanosensor and catalyst

被引：9

作者：

Gao, Xinna ^{[1
]}

Wu, Yun ^{[1
]}

Huang, Yiping ^{[1
]}

Yang, Ying ^{[1
]}

Xie, Anjian ^{[1
]}

Shen, Yuhua ^{[1
]}

机构：

[1] Anhui Univ, Sch Chem & Chem Engn, Hefei, Anhui, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2018年 / 258卷

关键词：

Surface enhanced Raman scattering; Flower-like HA/Ag nanocomposite; Detection; Catalyst; Porous structure; ENHANCED RAMAN-SPECTROSCOPY; PHOTOCATALYTIC DEGRADATION; AG-NANOPARTICLES; MAGNETIC NANOPARTICLES; EFFICIENT CATALYST; SURFACE LIGANDS; REDUCTION; GOLD; HYDROGENATION; SUBSTRATE;

D O I：

10.1016/j.micromeso.2017.08.042

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Surface enhanced Raman scattering (SERS) as a powerful analytical tool provides strong enhancement factors, good reproducibility and stability, which has gained good application effect. But single-use or single functional SERS substrate has been limited to the needs of the people. Here, a porous flower-like Hydroxyapatite (HA)/Ag nanocomposite was prepared via one-pot sol-thermal method without any templates. The unique Raman enhancement effect of the HA/Ag nanocomposite as the SERS-active substrate was revealed by the rhodamine 6G (Rh6G) detection at a concentration as low as 1 x 10(-10) M. In addition, the as-prepared porous nanocomposite as the catalyst for the reduction of p-nitrophenol (4-NP) can greatly shorten reaction time to 8 min (The rate constant k of the catalytic reaction is 0.426 min(-1)). Thus, the HA/Ag nanocomposite has wide applications in environmental detection and efficient catalytic degradation for organic pollutants. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：1 / 7

页数：7

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