Silver Nanoprism-Loaded Eggshell Membrane: A Facile Platform for In Situ SERS Monitoring of Catalytic Reactions

Crystals

Ji Zhou¹  Yunde Fan²  Xungai Wang²  Bin Tang³  Yong Ye³  Yaling Li⁴  Li Jia⁴ 

[1] Chemical Engineering, Hubei University, Wuhan 430062, China;;College of Chemistry &;Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education &;Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials &

关键词: eggshell membrane;    silver nanoprism;    catalysis;    SERS;   

DOI  :  10.3390/cryst7020045

来源: DOAJ

【 摘 要 】

We reported the fabrication of an in situ surface-enhanced Raman scattering (SERS) monitoring platform, comprised of a porous eggshell membrane (ESM) bioscaffold loaded with Ag nanoprism via an electrostatic self-assembly approach. The localized surface plasmon resonance (LSPR) property of silver nanoprism leads to the blue color of the treated ESMs. UV-vis diffuse reflectance spectroscopy, scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements were employed to observe the microstructure and surface property of Ag nanoprisms on the ESMs. The silver nanoprism-loaded eggshell membrane (AgNP@ESM) exhibited strong catalytic activity for the reduction of 4-nitrophenol by sodium borohydride (NaBH4) and it can be easily recovered and reused for more than six cycles. Significantly, the composites also display excellent SERS efficiency, allowing the in situ SERS monitoring of molecular transformation in heterogeneous catalysis. The results indicate that the AgNP@ESM biocomposite can achieve both SERS and catalytic functionalities simultaneously in a single entity with high performance, which promotes the potential applications of ESM modified with functional materials.

【 授权许可】

Unknown