Synthesis and structural characterization of ZnO-and CuO-NPs supported mesoporous silica materials (hexagonal SBA-15 and lamellar-SiO2)
Abstract
Two different mesoporous silica structures (hexagonal and lamellar) were synthesized via sol-gel method using a series of triblock copolymer (Pluronic) surfactants. L81, L61 & L31 surfactants form lamellar structure whereas P123 surfactant forms a hexagonal structure. CuO and ZnO nanoparticles (NPs) supported mesoporous silica were synthesized using impregnation method. The structural properties of these materials were investigated using several characterization techniques such as FTIR, XRD, SAXS, TEM and TGA. SAXS and TEM confirmed that the obtained mesoporous silica is based on the EO/PO ratio of Pluronic surfactants. They proved that the mesoporosity of silica is well maintained even after they loaded with metal oxide nanoparticles.
- Publication:
-
Chemical Physics Letters
- Pub Date:
- January 2018
- DOI:
- 10.1016/j.cplett.2017.11.030
- Bibcode:
- 2018CPL...691..211E
- Keywords:
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- Hexagonal and lamellar-SiO<SUB>2</SUB> structures;
- ZnO&CuO-NPs supported mesoporous silica;
- Mesoporous silica;
- Pluronic surfactants;
- ZnO&CuO-NPs