期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 10, 页码 7020-7027出版社
AMER CHEMICAL SOC
DOI: 10.1021/am501898u
关键词
gold; Ag2S; AgAuS; SERS; photocatalytic degradation; plasmon-enhanced
资金
- National Natural Foundation of China [11274066, 51172047, 50872145, 51102050]
- Ministry of Science and Technology of China (973 Projects) [2013CB932901, 2009CB930803]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [09SG01]
We report a facile single-step one-pot solvothermal process for tailoring the Au-Ag-S microstructures as bifunctional substrates for both surface-enhanced Raman scattering (SERS) detection and photocatalytic degradation of plasticizers diethylhexyl phthalate (DEHP) and diethylhexyl adipate (DEHA). Typically, two different microstructures, the Ag2S particles inlaid Au microflowers (Ag2S-Au MFs) and Au particles decorated AgAuS microsheets (Au-AgAuS MSs) were obtained. The Ag2S-Au MF substrates finally turned out to provide 0.9 X 10(-9) and 0.9 X 10(-7) M of the limits of detection (LODs) for DEHP and DEHA in orange juice. And on the other hand, the Au-AgAuS MSs achieved complete degradation of DEHP and DEHA (1 X 10(-5) M) after 20 and 25 min of UV light irradiation, respectively. It is believed that the facile preparation and appreciable SERS and catalytic activities of these Au-Ag-S microstructures would make much sense to develop novel multifunctional sensing and monitoring devices.
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