What is Zinc sulfide Zinc sulfideis an inorganic compound with the chemical formula ZnS. It mainly occurs in the minerals sphalerite and wurtzite. Both sphalerite and wurtzite are intrinsic, wide-band gap semiconductors. Zinc sulfide is transparent and white in color. It is usually produced from waste materials, and it is also a by-product of ammonia synthesis using methane.
Applications of Zinc sulfide
1.Zinc sulfide is not soluble in water, soluble in acid. See sunshine color darker. Long moist air transit into zinc sulfate. Generally by hydrogen sulfide and zinc salt solution. If the crystal ZnS adding trace amounts of Cu, Mn and Ag administered as activator, light, can make different color fluorescent. Used for analysis reagent, paint, paint, white and opaque glass, rubber, plastic, filling and for the preparation of phosphors.
2.Zinc sulfide is a white powder. It has good chemical stability and alkali resistance, and emits hydrogen sulfide when met with acid. Can be used as white pigment.
3. Zinc sulfide pigment Mohs hardness is low, soft texture, processing of the machine metal wear less, greatly prolong the service life of the processing machinery.
4. As a white pigment, it shows a bright hue, equivalent to about 60% of the whitening capacity of titanium dioxide. With ZnS as flame retardant, the amount of titanium dioxide can be saved, and it is non-toxic.
As an important two and six compound semiconductor, zinc sulfide nanomaterials have attracted great attention, not only because of their excellent physical properties, such as band gap width, high refractive index, and high light transmittance in the visible range, but also because of their great potential to be used in optical, electronic and optoelectronic devices. Effect and zinc sulfide has excellent fluorescence electroluminescent function, nanometer zinc sulfide has more unique photoelectric effect, in electricity, magnetism, optics, mechanics and catalytic fields show many excellent properties, so research of nanometer zinc sulfide has attracted more attention, especially in 1994 Bhargava, reported by the surface passivation treatment of nanometer ZnS: administered Mn phosphor powder at high temperature is not only external quantum efficiency is as high as 18%, its fluorescence life shortened five orders of magnitude, and luminescence properties have changed a lot, more ZnS application in material administered opens up a new way. It can be used to make white pigment, glass, luminescent powder, rubber, plastic, luminescent paint, etc.
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