Patent ID: 9176140
Filing Date: 2015-11-03
Classification: B01J,B81C,G01N

Abstract:
1. A method of synthesizing corrugated and nanoporous silica microspheres comprising the steps of: a. synthesizing a plurality of silica microspheres consisting of silica; and b. wet-etching the surface of each of said plurality of said silica microspheres with an etchant comprising a basic solution having a pH above 10.00, wherein said basic solution comprises a solution selected from the group consisting of an aqueous potassium cyanide solution and an aqueous potassium hydroxide solution, and wherein said step of wet-etching comprises contacting the surface of each of said plurality of said silica microspheres with said etchant under conditions sufficient to produce silica microspheres having corrugated and nanoporous surfaces.