Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II)
A new solid phase extractant, sinapinaldehyde (SA) modified SBA-15 mesoporous silica, was developed for selective extraction and preconcentration of trace Pb(II) from aqueous solutions. The successful immobilization of SA on SBA-15 and the strong interaction between SA-SBA-15 and Pb(II) were charact...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/10712 |
| _version_ | 1848747608680431616 |
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| author | Zhang, L. Hu, Xun Yu, C. Crawford, R. Yu, A. |
| author_facet | Zhang, L. Hu, Xun Yu, C. Crawford, R. Yu, A. |
| author_sort | Zhang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A new solid phase extractant, sinapinaldehyde (SA) modified SBA-15 mesoporous silica, was developed for selective extraction and preconcentration of trace Pb(II) from aqueous solutions. The successful immobilization of SA on SBA-15 and the strong interaction between SA-SBA-15 and Pb(II) were characterized and confirmed by FTIR spectroscopy and scanning electron microscopy. Parameters such as solution pH, shaking time, eluent condition and sample volume were optimized so that the maximum removal of Pb(II) from solution could be achieved. At pH 4.0, the maximum adsorption capacity of the sorbent for Pb(II) was found to be 33.6 mg g-1 and the adsorbed Pb(II) could be completely eluted using a mixed solution of 2 M HCl and 5% CS(NH2)2. Some common metal ions such as K(I), Na(I), Mg(II), Ca(II), Cr(III), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) did not interfere with the adsorption of trace Pb(II). The detection limit of the present method was found to be 1.3 ng mL-1 and the relative standard deviation was less than 2.0% (n = 8). These results suggested that this new sorbent is very efficient and selective for the removal of trace Pb(II) in water samples. © 2013 Copyright Taylor and Francis Group, LLC. |
| first_indexed | 2025-11-14T06:51:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-10712 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:51:51Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-107122017-09-13T14:53:18Z Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) Zhang, L. Hu, Xun Yu, C. Crawford, R. Yu, A. A new solid phase extractant, sinapinaldehyde (SA) modified SBA-15 mesoporous silica, was developed for selective extraction and preconcentration of trace Pb(II) from aqueous solutions. The successful immobilization of SA on SBA-15 and the strong interaction between SA-SBA-15 and Pb(II) were characterized and confirmed by FTIR spectroscopy and scanning electron microscopy. Parameters such as solution pH, shaking time, eluent condition and sample volume were optimized so that the maximum removal of Pb(II) from solution could be achieved. At pH 4.0, the maximum adsorption capacity of the sorbent for Pb(II) was found to be 33.6 mg g-1 and the adsorbed Pb(II) could be completely eluted using a mixed solution of 2 M HCl and 5% CS(NH2)2. Some common metal ions such as K(I), Na(I), Mg(II), Ca(II), Cr(III), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) did not interfere with the adsorption of trace Pb(II). The detection limit of the present method was found to be 1.3 ng mL-1 and the relative standard deviation was less than 2.0% (n = 8). These results suggested that this new sorbent is very efficient and selective for the removal of trace Pb(II) in water samples. © 2013 Copyright Taylor and Francis Group, LLC. 2013 Journal Article http://hdl.handle.net/20.500.11937/10712 10.1080/03067319.2012.736974 restricted |
| spellingShingle | Zhang, L. Hu, Xun Yu, C. Crawford, R. Yu, A. Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title | Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title_full | Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title_fullStr | Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title_full_unstemmed | Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title_short | Preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace Pb(II) |
| title_sort | preparation of sinapinaldehyde modified mesoporous silica materials and their application in selective extraction of trace pb(ii) |
| url | http://hdl.handle.net/20.500.11937/10712 |