Please use this identifier to cite or link to this item: https://repository.unej.ac.id/xmlui/handle/123456789/111770
Full metadata record
DC FieldValueLanguage
dc.contributor.authorRATNADEWI, Anak Agung Istri-
dc.contributor.authorTRISSA, Trissa-
dc.contributor.authorSUWARDIYANTO, Suwardiyanto-
dc.contributor.authorHANDAYANI, Wuryanti-
dc.contributor.authorSANTOSO, Agung Budi-
dc.contributor.authorSUDARKO, Sudarko-
dc.date.accessioned2023-01-26T03:28:41Z-
dc.date.available2023-01-26T03:28:41Z-
dc.date.issued2019-10-15-
dc.identifier.urihttps://repository.unej.ac.id/xmlui/handle/123456789/111770-
dc.description.abstractSynthesis of silica nanoparticles has been conducted by sol gel method using Tetraethylorthosilicate (TEOS) as precursor. Silica nanoparticle was prepared by varying the molar ratio of NH3 and TEOS i.e. 0.03, 0.06 and 0.12. Mixture of TEOS, ethanol, distilled water and NH3 as catalyst was stirred at temperature of 50 ± 2º C for 5 hours to produce sol. The sol was allowed to form gel for 48 hours. Gel of silica was kept at temperature of 70 C to evaporate the solvent resulting in white powder of silica followed by calcination at 400ºC for 8 hours. Characterization by means SEM revealed that the silica particle size was governed by the molar ratio of NH3 and TEOS. Higher NH3 concentration gave a bigger particle size i.e. 88.48, 271.31 and 473.52 nm respectively. Modification of the silica surface with glutaraldehyde was aimed to make the silica as immobilization matrix of endo-β-1,4-D-xylanase. Percentage of immobilized protein enzyme on silica 88.48, 271.31 and 473.52 nm were 30.49%, 15.05%, and 10.56% respectively.en_US
dc.language.isoenen_US
dc.publisherIOP Conference Series: Earth and Environmental Scienceen_US
dc.subjectxylanaseen_US
dc.subjectimmobilizationen_US
dc.subjectaldehyde-silica nanoparticleen_US
dc.titleSynthesis of Aldehyde-Silica Nanoparticle for Matrix Immobilization of Endo-β-1,4-D-xylanaseen_US
dc.typeArticleen_US
Appears in Collections:LSP-Conference Proceeding

Files in This Item:
File Description SizeFormat 
F MIPA_Synthesis of Aldehyde-Silica Nanoparticle for Matrix.pdf1.13 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.