期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 19, 页码 10457-10465出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b01806
关键词
polyaniline; Ag nanoparticles; SERS; recycle; 4-NTP reduction
资金
- CSIR, INDIA [02(0161)/13/EMR-II]
- CSIR, New Delhi, India
Facile synthesis of polyaniline@Ag composite has been successfully demonstrated by a simple solution-dipping method using high-aspect-ratio benzene tetracarboxylic acid-doped polyaniline (BDP) fiber as a nontoxic reducing agent as well as template cum stabilizer. In BDP@Ag composite, BDP fibers are decorated with spherical Ag nanoparticles (Ag NPs), and the population of Ag NPs on BDP fibers is controlled by changing the molar concentration of AgNO3. Importantly, Ag-NP-decorated BDP fibers (BDP@ Ag composites) have been evolved as a sensitive materials for the detection of trace amounts of 4-mercaptobenzoic acid and rhodamine 6G as an analyte of surface-enhanced Raman scattering (SERS), and the detection limit is down to nanomolar concentrations with excellent recyclability. Furthermore, synthesized BDP@Ag composites are applied simultaneously as an active SERS substrate and a superior catalyst for reduction of 4-nitrothiophenol.
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