Fluorescence color-change material capable of directionally identifying dichloromethane, trichloromethane and tetrachloromethane and preparation method of fluorescence color-change material

Abstract

The invention discloses a novel fluorescence color-change material capable of directionally identifying CH2Cl2, CHCl3 and CCl4 and a preparation method of a fluorescence color-change material and belongs to the cross fields of nano-materials and coordination chemistry. The material is a silver and sulfur cluster based porous coordination polymer which takes a 10-core silver and sulfur cluster as anode and has double teeth bridged through an organic ligand. A chemical formula of the compound is as follows: [Ag10(StBu)6(CF3COO)2(PhPO3H)2(bpy)2]n. The novel fluorescence color-change material belongs to a triclinic crystal system and a space group is P-1. The material can be used for directionally identifying CH2Cl2, CHCl3 and CCl4 organic solvents and the porosity reaches maximum value of 32percent from 9.8 percent; the material has high sensitivity and a rapid response speed, and has the characteristics of long detection service life, capability of being circularly utilized, good stability and the like. The material has a huge application prospect in the aspects of organic solvent identification and detection.

Description

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AI Technical Summary

Benefits of technology

This new type of pore coordinated copolymers called clusters or microporous particles made up of two types of materials - one being rigid and another soft enough to absorb liquids like water vapor without losing their shape when exposed to certain conditions such as heating or pressure. These microparticles have unique structures with large surface areas where chemical reactions occur during excitation processes. They also display various colors depending upon how they react chemically inside these surfaces. By measuring this change caused by interactions between specific compounds attached to them, it becomes possible to determine which substances were added into harmful environments based solely on its spectral characteristics.

Problems solved by technology

The technical problem addressed in this patented text relates to finding an efficient way to label small chemical compounds like chlorofluoroethanes (CFC) without causing damage during analysis due to their strong odors that make them difficult to handle safely. Current methods involve expensive equipment such as gas chromatography columns and liquid nitrogen baths which require trained staff and consume large amounts of energy. There is currently lacking any easy-to use solution for identifying specific types of chemical substances called fluorous colloidal silicate particles (FCS).

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