Terbium coordination compound composite fluorescent material taking inorganic salt as matrix, and preparation method thereof

Abstract

The invention provides a terbium coordination compound composite fluorescent material taking an inorganic salt as a matrix, and a preparation method thereof. The preparation method comprises the following steps: carrying out a reaction on terbium chloride, phthalic acid and calcium carbonate to prepare a terbium coordination compound composite fluorescent material taking calcium carbonate as a matrix; and characterizing the performances of the prepared composite fluorescent material through analysis experiments such as ultraviolet analysis, infrared analysis, fluorescence analysis, thermogravimetric difference thermal analysis, XRD and the like. According to the terbium coordination compound composite fluorescent material with the inorganic salt as the matrix, the use amount of rare earthions is reduced, the cost of the rare earth coordination compound fluorescent material is reduced, and the prepared composite fluorescent material is environmentally friendly, good in thermal stability and long in fluorescent service life. The preparation method is simple, and the composite fluorescent material can be well separated from the solution.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a terbium complex composite fluorescent material with an inorganic salt as a matrix and a preparation method thereof. Background technique [0002] Rare earth elements (rare earth elements), also known as rare earth metals, are composed of fifteen lanthanide elements (lanthanide elements) in the periodic table of chemical elements and yttrium and scandium elements that coexist in large quantities with lanthanide deposits in nature. Consists of large families of elements. Rare earth elements are vividly compared to "vitamins in industry" because of their wide application in many fields such as metal refining, petrochemical industry, military industry, magnetic materials and fluorescent materials. Rare earth elements get their name because they were first isolated and found in rare earth minerals. The special name "rare earth" originated from the fact that the distribution of...

AI Technical Summary

Problems solved by technology

[0004] In recent years, because rare earths have gradually been used as strategic resources, more and more attention has been paid to them. Therefore, the price of rare earths has continued to rise, and it is difficult to recycle rare earth complexes after use, which has led to great limitations in the application of rare earth complexes in many aspects.

Images