Raman testing method of compound based on two-dimensional titanium carbide nanosheet

• Main Authors: QIU TIANLUN, LI GUOHUI, GENG FENGXIA
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2020
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; TRANSPORTING

The invention discloses a Raman testing method of a compound based on a two-dimensional titanium carbide nanosheet. The method comprises the following steps of: adding Ti3AlC2 powder into an organic alkali aqueous solution, performing stirring, and then conducting centrifuging to obtain a Ti3C2 nanosheet; then dispersing the Ti3C2 nanosheet in water to form a colloidal solution; then adding the colloidal solution dropwise onto a non-metal carrier to obtain a Raman test substrate, and adding the compound solution dropwise onto the Raman test substrate to complete the Raman testing of the compound. According to the invention, an in-situ modified titanium carbide nanosheet containing aluminum oxyanions is used as an active carrier for Raman testing, so that abnormally sensitive but nonselective enhancement is realized. In addition, the SERS effect of the modified titanium carbide is suitable for various different analyte molecules, including organic dyes and trace harmful compounds. The feasibility of improving