Nanoporous Silica Polyamine Composites for Metal Ion Capture From Rice Hull Ash
نویسندگان
چکیده
منابع مشابه
Phenylthiourea Modified Highly Ordered Nanoporous Silica for Heavy Metal Ion (Hg2+ ) Trapping
The phenylthiourea-substituted triethoxysilane as a silane agent was synthesized and grafted on highly ordered nanoporous silica (LUS- 1) with a textured morphology and hexagonal array. This material (Tu-LUS-1) contained 0.8 mmol/g of soft base phenylthiourea group and surface area 760 m2 g-1 and was able to adsorb 0.75 mmolHg/g of TU-LUS-1 in endothermic reaction.
متن کاملPhysical and Adsorptive Characterization of Precipitated Magnesium Silicate from Rice Hull Ash Silica
Precipitation of magnesium silicate from sodium silicate and MgCl2 and MgSO4 solutions was investigated at four different reactant feed rates and two temperatures (25 °C and 50 °C). Sodium silicate solutions were produced from rice hull ash silica. The final product was characterized by scanning electron microscopy, X-ray diffraction, thermogravimetric analysis/differential thermal analysis, cr...
متن کاملphenylthiourea modified highly ordered nanoporous silica for heavy metal ion (hg2+ ) trapping
the phenylthiourea-substituted triethoxysilane as a silane agent was synthesized and grafted on highly ordered nanoporous silica (lus-1) with a textured morphology and hexagonal array. this material (tu-lus-1) contained 0.8 mmol/g of soft base phenylthiourea group and surface area 760 m2g-1 and was able to adsorb 0.75 mmolhg/g of tu-lus-1 in endothermic reaction.
متن کاملImmobilization of Enzymes on Nanoporous Silica Composites
Title of Dissertation: IMMOBILIZATION OF ENZYMES ON NANOPOROUS SILICA COMPOSITES Allan E. David, Ph.D., 2004 Dissertation Directed By: Associate Professor N.S. Wang, Department of Chemical Engineering Dr. A.J. Yang, ISTN, Inc. In this work, the sol-gel process is used to produce a chemically surface modified gel (CSMG) with a high modification density. Sodium silicate, an inexpensive alternativ...
متن کاملCoating of magnetite with mercapto modified rice hull ash silica in a one-pot process
In this research, mercapto-silica coated magnetite (Fe3O4-SiO2-SH) has been prepared in aqueous solution through a simple approach so called a one-pot process. The Fe3O4-SiO2-SH was prepared in nitrogen condition by mixing magnetite, 3-mercaptopropyltrimethoxysilane (MPTMS), and sodium silicate (Na2SiO3) solution extracted from rice hull ash, and adjusting the pH of 7.0 using hydrochloric acid....
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ژورنال
عنوان ژورنال: Eurasian Chemico-Technological Journal
سال: 2010
ISSN: 1562-3920
DOI: 10.18321/ectj34