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Surface reinforced Raman dissemination active substrate and production process thereof

A surface-enhanced Raman and active substrate technology, applied in the field of laser Raman spectroscopy detection equipment, can solve the problems of loss of enhancement function, weak combination of silver and substrate surface, easy falling off of silver mirror, etc., and achieve the effect of enhancing Raman activity

Inactive Publication Date: 2005-11-23
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the weak combination of silver and the surface of the substrate, the silver mirror on the surface of the substrate is easy to fall off when the substrate is working in water, thus losing the enhancement function

Method used

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  • Surface reinforced Raman dissemination active substrate and production process thereof
  • Surface reinforced Raman dissemination active substrate and production process thereof
  • Surface reinforced Raman dissemination active substrate and production process thereof

Examples

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Embodiment

[0017] Embodiments, a surface-enhanced Raman scattering active substrate, including a glass substrate, the surface of the substrate undergoes mercapto-treatment, and the surface of the substrate treated with mercapto-treatment deposits an Ag nanoparticle modification layer through a silver mirror reaction. The preparation of the base comprises the steps of hydroxylation treatment of the substrate, mercaptolation of the substrate and the formation of a Ag nano particle modification layer on the surface of the substrate. In the substrate hydroxylation step, in an inert atmosphere, the cleaned substrate is immersed in 80°C, 7 parts (volume parts) by weight of concentrated sulfuric acid with a concentration of 98% and 3 parts (volume parts) by weight of a concentration of 30% hydrogen peroxide. in the mixed solution for 10 minutes; in the mercaptolation step of the substrate, immerse the substrate in 24°C, 10 -2 Soak in a toluene solution of M mercaptopropyltrimethoxysilane for 12...

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Abstract

The invention relates to a surface reinforced scattering active base in the filed of laser spectrum measurement, which comprises glass substrate with mercapto treatment on the surface which deposits Ag nanometer modification inlay by silver mirror reaction. The process for preparing the base comprises substrate-hydroxylating treatment; substrate mercapto treatment and substrate surface Ag nanometer modification inlay formation.

Description

technical field [0001] The invention belongs to the technical field of laser Raman spectrum detection equipment, and in particular relates to a surface-enhanced Raman scattering active substrate and a preparation method thereof. Background technique [0002] Based on the important influence of membrane structure on its assembly function, people have paid more attention to the research of monomolecular membrane condensation and phase transition process in recent years, and developed various high-sensitivity surface analysis techniques to study membrane structure and condensation process in situ. The sensitivity of SERS technology to study the surface and interface is extremely high, so it has become a powerful method for the study of monomolecular membranes. Preparation of highly active enhanced substrates is a prerequisite for obtaining SERS signals. Usually, methods to obtain highly active substrates include silver electrode method, silver sol method, silver flake method, ...

Claims

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Application Information

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IPC IPC(8): G01N21/15
Inventor 杜祖亮张兴堂郭浩黄亚彬
Owner HENAN UNIVERSITY
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