Preparation method of SERS (Surface Enhanced Raman Scattering) substrate of Au/Fe3O4/MIL-101 (Cr) composite material

The invention provides a preparation method of an SERS (Surface Enhanced Raman Scattering) substrate of an Au/Fe3O4/MIL-101 (Cr) composite material. The preparation method comprises the following steps: 1, synthesizing MIL-101 (Cr) by a hydrothermal method; 2, the surface of the MIL-101 (Cr) is coat...

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Bibliographische Detailangaben
Hauptverfasser:	LIANG PEI, HUANG JIE, SHAO QINCHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MEASURING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The invention provides a preparation method of an SERS (Surface Enhanced Raman Scattering) substrate of an Au/Fe3O4/MIL-101 (Cr) composite material. The preparation method comprises the following steps: 1, synthesizing MIL-101 (Cr) by a hydrothermal method; 2, the surface of the MIL-101 (Cr) is coated with Fe3O4 by adding Fe < 3 + > and Fe < 2 + >; and 3, synthesizing gold nanoparticles by regulating and controlling the mass concentration and ultrasonic oscillation time of chloroauric acid, attaching the gold nanoparticles to the surface of Fe3O4/MIL-101 (Cr), preparing to obtain an Au/Fe3O4/MIL-101 (Cr) composite material, dissolving the Au/Fe3O4/MIL-101 (Cr) composite material, dispensing the Au/Fe3O4/MIL-101 (Cr) composite material on a silicon wafer, and drying to obtain the SERS substrate. According to the method, analytes are enriched by utilizing the excellent adsorption capacity of MIL-101 (Cr), rapid separation is carried out by utilizing the magnetism of Fe3O4, and meanwhile, the sensitivity of SERS