Booth Id:
MATS050T
Category:
Materials Science
Year:
2025
Finalist Names:
Kim, Minkyung (School: Busan Il Science High School)
Choi, Eun (School: Busan Il Science High School)
Moon, Seohyun (School: Busan Il Science High School)
Abstract:
In this study, after self-assembly and hydrothermal reaction under acidic conditions using TEOS as a silica source and a triblock copolymer (P123) as a template, a nanostructured silica material (As-synthesized SBA-15) with two-dimensional (2D) hexagonal symmetry successfully was synthesized. The templates in nanopores were removed in HCl-EtOH solution through a solvent extraction method (Surfactant-extracted SBA-15). A process of attaching functional groups is required to functionalize the nanopores from which the template has been removed. Therefore, after modifying the surface of the nanopores with a high array in the silica material (AAPDMS-SBA-15) with aminosilane groups, Tb/AAPDMS-SBA-15 was generated through complexation of Tb2+ and aminosilane. Various heavy metal ions were adsorbed to confirm the degree of sensing for each metal ion by photoluminescence spectroscopy. As a result, the functionalized silica material showed high selective sensing for Cu2+ in aqueous solution.
Awards Won: