Method of preparing core-shell zinc oxide particles
A method of preparing core-shell zinc oxide particles, includes: mixing a calcium-containing material with a first zinc ammonia complex salt solution; heating the thus obtained first mixture to remove ammonia, thereby obtaining a first intermediate product; mixing the first intermediate product with...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A method of preparing core-shell zinc oxide particles, includes: mixing a calcium-containing material with a first zinc ammonia complex salt solution; heating the thus obtained first mixture to remove ammonia, thereby obtaining a first intermediate product; mixing the first intermediate product with a second zinc ammonia complex salt solution to obtain a second mixture; heating the second mixture to remove ammonia, followed by conducting a drying process to obtain a second intermediate product; and calcining the second intermediate product to obtain the core-shell zinc oxide particles. A core-shell zinc oxide particle is prepared by the aforementioned method, and a composition for shielding ultraviolet light includes the core-shell zinc oxide particles. |
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