Publications by authors named "Vinh-Thang Hoang"
Hybrid mesoporous materials as carriers for immobilization of D-amino acid oxidase (DAAO) were prepared via three steps: (i) hydrothermal synthesis of nanoporous MCF, SBA-15 and MCM-41 powders, (ii) functionalization with 3-aminopropyltriethoxysilane (APTES) by post-synthesis grafting; and (iii) activation with glutardialdehyde. The resulting mesostructured solids were characterized by various techniques: XRD, IR, TGA-DTA and N2 adsorption–desorption (BET). The characterization results indicated that these materials still maintained their structure after functionalization.
View Article and Find Full Text PDFA series of mesoporous UL-ZSM-5 materials (Si/Al = 50) with different micro- and mesoporosity as well as crystallinity was prepared following the procedure proposed in one of our recent studies (Trong-On, D.; Kaliaguine, S. Angew.
View Article and Find Full Text PDFArticle Synopsis
- The study focused on the unique micro- and mesoporous structures of SBA-15 materials, revealing that their complexity goes beyond just hexagonally ordered channels.
- Nitrogen adsorption experiments at low temperatures indicated the presence of both large mesopores and smaller micropores within the mesoporous walls, which can be manipulated by adjusting heating time and synthesis temperature.
- The diffusion behavior of n-heptane as a probe molecule in various SBA-15 samples showed that higher micropore content led to slower diffusion and higher activation energies, while lower micropore content resulted in faster diffusion rates due to increased influence from larger mesopores.