Journal
MATERIALS
Volume 14, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ma14040922
Keywords
Ag– ZnO; coupling reaction; nanocomposite; PATP; SERS substrate
Categories
Funding
- LiaoNing Revitalization Talents Program [XLYC1807162]
- Liaoning Provincial Department of Education Project [LQN202009, LJC201904]
- National Natural Science Foundation of China [21671089, 11974152]
- Shenyang High-level Innovative Talents Program [RC200565]
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Noble metal-semiconductor nanocomposites, prepared by hydrothermal growth and chemical reduction immersion, integrate the enhancement effects of silver nanoparticles and ZnO semiconductor materials in SERS. They can detect molecules at low concentrations and promote coupling reactions effectively, showing potential applications as SERS substrates in catalytic reactions.
Noble metal-semiconductor nanocomposites have received extensive attention in Surface Enhanced Raman Scattering (SERS) due to their unique properties. In this paper, the Ag-ZnO nanocomposites are prepared by hydrothermal growth and simple chemical reduction immersion. The synthesized nanocomposite material simultaneously integrates the individual enhancement effects of the two materials in the SERS, such as the electromagnetic enhancement of silver nanoparticles and the chemical enhancement of ZnO semiconductor materials. Using this substrate, Rhodamine 6G molecules with a concentration as low as 10(-8) M can be detected, and the coupling reaction of PATP can be effectively promoted. The nanocomposite materials prepared by selecting appropriate semiconductor materials and metal materials combined, could be potentially applied, as SERS substrates, in certain catalytic reactions.
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