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BET surface area vs polymerization time

Hanyang Univ. BET surface area vs polymerization time. Hanyang Univ. Pore Size(nm) vs polymerization time. Hanyang Univ. Pore Volume vs polymerization time. Hydrothermal Treatment. Liquid Phase(various solvent) - Immersioning silica particle Gas Phase -Nitrogen -Steam

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BET surface area vs polymerization time

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  1. Hanyang Univ. BET surface area vs polymerization time

  2. Hanyang Univ. Pore Size(nm) vs polymerization time

  3. Hanyang Univ. Pore Volume vs polymerization time

  4. Hydrothermal Treatment • Liquid Phase(various solvent) - Immersioning silica particle • Gas Phase -Nitrogen -Steam • dehydration or dissolution • -Silica dissolves from fine particle

  5. Illustration of pore structure before (a) and after (b) hydrothermal treatment by means of autoclave process Hanyang Univ. Inorganic Advanced Material Lab

  6. - Hydrothermal process Reactor(High Pressure) -Temp. , Time control Centrifuge (Treated gel + Water) Washing (DI water) Vacuum drying Grinding Classification Characterization Hanyang Univ. Inorganic Advanced Material Lab

  7. Hanyang Univ. Inorganic Advanced Material Lab

  8. Hanyang Univ. Inorganic Advanced Material Lab

  9. Immobilization of Enzyme - Schematic procedure for the silanization of silica Silica(10g) Washing(with methanol, H2O2, HNO3) Adding aminosilanes(50ml) Agitating(110C *4hrs) Washing with DW Drying(105C *2hrs) Hanyang Univ. Inorganic Advanced Material Lab

  10. - Schematic procedure for the immobilization of DAAO Silanized silica(10g) Adding of 25% Glutaraldehyde(30ml)/ 200ml of 0.1M potassium phosphate buffer (pH7.5) Agitating(20C *1hr) DW washing Suspending in 300ml of 0.1M potassium phosphate buffer (pH7.5) Adding of DAAO solution (200U/ml*5ml) Agitating(20C *1hr) Immobilized yield by HPLC Hanyang Univ. Inorganic Advanced Material Lab

  11. Hanyang Univ. Inorganic Advanced Material Lab

  12. (b) (a) Fig. 7. Effect of pore size on the amount (a) and activity (b) of immobilized enzyme ■ : pH 4.0, Temp. 70℃ ● : pH 9.0, Temp. 70℃

  13. Hanyang Univ. Inorganic Advanced Material Lab

  14. Study on Biocatalyst support Immobilization yield vs. pore diameter. Covalent Immobilization of D-amino acid oxidase to Nano-porous silica. 3APTES (3-aminopropyltriethoxysilane)

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