Recycled fiber derived carbon dispersed Ag nanoparticles as high-performance catalyst for 4-nitrophenol reduction and substrate for surface-enhanced Raman scattering
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Hydroxyl-rich waste fibers have been utilized as support to synthesize paper derived monodispersed Ag composites. We utilized the one-step thermal reduction and carbonization method to synthesize a meso-pore carbon frame with mono-dispersed silver nanoparticles (Ag@C). The Ag@C showed excellent catalytic activity in 4-nitrophenol reduction reactions attributing to their well dispersed silver nanoparticles and high surface area. The Ag@C catalyst could be recycled for ten times without significant loss of its catalytic activity. Furthermore, the Ag@C could be used as a Surface-enhanced Raman scattering (SERS) substrate, and the SERS signals strength were shown to be seven times higher than unloaded carbon membrane. The results clearly indicated that the Ag nanoparticle-loaded recycled fibers exhibited SERS activity, rendering it an excellent SERS substrate for practical applications. The efficient utilization of the widely accessible waste fibers from paper-making industry could provide a sustainable feature of this work to reduce manufacturing cost and contribute it to be an environment-friendly bifunctional material.
KeywordsRecycled fibers Ag nanoparticles Catalyst SERS Composites
We wish to thank the National Science of (31430092, 21736003), Guangdong Natural Science Funds for Distinguished Young (2016A030306027, 2017A030306029), Guangdong Natural Science Funds (2017A030313130), Guangzhou science and technology funds (201904010078), State Key Laboratory Pulp Paper and Fundamental Research Funds for the Central Universities.
Compliance with ethical standards
Conflict of interest
The authors declare no competing financial interest.
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