Preparation method and application of electrochemical sensor based on synergistic effect of graphene nanobelts and gold nanoparticles

• Main Authors: ZHOU BINBIN, SHENG XINGXIN, LI XINYI, ZHONG MING, XIE HAO
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: CASTING; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICS; POWDER METALLURGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; TRANSPORTING; WORKING METALLIC POWDER

The invention discloses a preparation method and application of an electrochemical sensor based on the synergistic effect of graphene nanoribbons and gold nanoparticles. According to the method, a molecularly imprinted membrane is polymerized on an electrode modified by graphene nanobelts and gold nanoparticles in an electric polymerization mode to serve as a working electrode. The preparation method of the working electrode comprises the following steps: (1) preparing a graphene oxide nanobelt by adopting an improved Hummers method; (2) sequentially reducing and depositing the graphene oxide nanobelt and gold nanoparticles on a glassy carbon electrode by an electrodeposition method to prepare a gold nanoparticle/reduced graphene oxide nanobelt modified glassy carbon electrode; and (3) preparing a molecularly imprinted membrane on the modified glassy carbon electrode by using zearalenone as a template molecule and o-phenylenediamine as a functional monomer through an electropolymerization method, namely the s