Adsorption of Co(II) and Mn(II) Ions on Mesoporous Silica SBA15 Functionalized with Amine Groups
- Title
- Adsorption of Co(II) and Mn(II) Ions on Mesoporous Silica SBA15 Functionalized with Amine Groups
- Author
- 박재구
- Keywords
- adsorption; functionalization; cobalt; manganese; mesoporous silica
- Issue Date
- 2014-08
- Publisher
- THE JAPAN INSTITUTE OF METALS
- Citation
- MATERIALS TRANSACTIONS, 2014, 55(9), p.1494-1499
- Abstract
- The adsorption characteristics of Co(II) and Mn(II) ions on mesoporous silica SBA15 were investigated. SBA15 was synthesized from the silicate precursor tetraethyl-orthosilicate (TEOS), and it was functionalized with ethylene-diamine-tetra-acetic-acid (EDTA) and N,N-dimethylacetamide (DMAC), which consists of the amine functional groups. It was also characterized by nitrogen adsorption-desorption analysis, element analysis (EA), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The adsorption capacities of EDTA functionalized SBA15 for Co(II) and DMAC functionalized SBA15 for Mn(II) in a single component system were found to be 10.12 mg/g and 6.8 mg/g, respectively. These values are about 10 times higher than that of assynthesized SBA15. The adsorption isotherms and kinetics data were found to follow the Langmuir adsorption isotherm model and the Pseudo-second order kinetic model (r(2) > 0.99). After the 5 adsorption cycles, over 90% regeneration efficiency was achieved for the functionalized SBA15, which would be applied for recovery of the metals.
- URI
- http://www.jim.or.jp/journal/e/55/09/1494.htmlhttp://hdl.handle.net/20.500.11754/47235
- ISSN
- 1345-9678
- DOI
- 10.2320/matertrans.M2014128
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML