4.7 Article

In situ SERS monitoring of photocatalysts by Au-decorated Fe3O4@TiO2 nanocomposites: novel perspectives and insights

期刊

CRYSTENGCOMM
卷 23, 期 47, 页码 8443-8450

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ce01224j

关键词

-

资金

  1. National Research Foundation of Korea (NRF) - Korea government [NRF-2020K2A9A2A06036299, NRF2020R1A4A1016093, NRF-2021R1A2C2004550]
  2. Korea Basic Science Institute (National Research Facilities and Equipment Center) - Ministry of Education [2020R1A6C101A195]
  3. Brain Pool program - Ministry of Science and ICT through the National Research Foundation of Korea [2021H1D3A2A01081031]
  4. National Research Foundation of Korea [2021H1D3A2A01081031, 2020R1A6C101A195] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

向作者/读者索取更多资源

The Au-decorated Fe3O4@TiO2 nanoparticles exhibit excellent photocatalytic and SERS activities, showing significant photolysis effects on methyl orange. They demonstrate more efficient catalysis than Fe3O4@TiO2 NPs, with the Au-decorated TiO2 having surface plasmon resonance effects.
The design and preparation of multifunctional nanomaterials are very important for photocatalytic research. Herein, we successfully fabricated Au-decorated Fe3O4@TiO2 nanoparticles (NPs) that can be easily separated from solution using an external magnet. The synthesized Fe3O4@TiO2-Au NPs exhibit excellent photocatalytic and surface-enhanced Raman scattering (SERS) activities upon 532 nm laser excitation. The photolysis of methyl orange (MO) by the Fe3O4@TiO2-Au NPs was successfully monitored by in situ SERS. The Fe3O4@TiO2-Au NPs exhibit more efficient catalysis than the Fe3O4@TiO2 NPs. Most importantly, Au-decorated TiO2 exhibits surface plasmon resonance (SPR), which induces hot electron transfer for photocatalytic and SERS activities. Therefore, the proposed Fe3O4@TiO2-Au NPs can be widely used in environmental monitoring and pollutant degradation using an in situ SERS monitoring technique.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据