THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE
The uptake of orthophosphate onto the chitosan-ferrihydrite membrane has been studied. The membrane was proposed as a new binding layer of DGT technique. Membrane was prepared from a mixture of chitosan solution with ferrihydrite (FeOOH) paste and was crosslinked with glutaraldehyde. As a result, th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Department of Chemistry, Universitas Gadjah Mada
2010-06-01
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| Series: | Indonesian Journal of Chemistry |
| Online Access: | https://jurnal.ugm.ac.id/ijc/article/view/21506 |
| _version_ | 1818928043178065920 |
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| author | Barlah Rumhayati Chasan Bisri Wahyu O. Fajarina |
| author_facet | Barlah Rumhayati Chasan Bisri Wahyu O. Fajarina |
| author_sort | Barlah Rumhayati |
| collection | DOAJ |
| description | The uptake of orthophosphate onto the chitosan-ferrihydrite membrane has been studied. The membrane was proposed as a new binding layer of DGT technique. Membrane was prepared from a mixture of chitosan solution with ferrihydrite (FeOOH) paste and was crosslinked with glutaraldehyde. As a result, the uptake of orthophosphate was slow. The maximum adsorption capacity was reached at pH 5.0 and 8.0. It was mainly due to electrostatic attraction of phosphate ions to the protonated free amino groups of chitosan and to active sites of ferrihydrite. Desorption could be occurred optimally using 0.3 M of sulphuric acid. The absorption of SO42- ion to the protonated amino groups and the formation of ionic crosslinking could exchange and desorb phosphate ions. Ferrihydrite was eluted also by the acid. However, the eluted ferrihydrite readsorbed phosphate ions, resulted in minimizing the analysed free phosphate.
Keywords: adsorption, phosphate, chitosan-ferrihydrite/glutaraldehide membrane, DGT technique |
| first_indexed | 2024-12-20T03:22:38Z |
| format | Article |
| id | doaj.art-a28f0789865a43b19fbbc7569ca64ad0 |
| institution | Directory Open Access Journal |
| issn | 1411-9420 2460-1578 |
| language | English |
| last_indexed | 2024-12-20T03:22:38Z |
| publishDate | 2010-06-01 |
| publisher | Department of Chemistry, Universitas Gadjah Mada |
| record_format | Article |
| series | Indonesian Journal of Chemistry |
| spelling | doaj.art-a28f0789865a43b19fbbc7569ca64ad02022-12-21T19:55:11ZengDepartment of Chemistry, Universitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782010-06-019340440910.22146/ijc.2150614604THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKEBarlah Rumhayati0Chasan Bisri1Wahyu O. Fajarina2Department of Chemistry, Brawijaya University, Jl. Veteran, Malang 65145Department of Chemistry, Brawijaya University, Jl. Veteran, Malang 65145Department of Chemistry, Brawijaya University, Jl. Veteran, Malang 65145The uptake of orthophosphate onto the chitosan-ferrihydrite membrane has been studied. The membrane was proposed as a new binding layer of DGT technique. Membrane was prepared from a mixture of chitosan solution with ferrihydrite (FeOOH) paste and was crosslinked with glutaraldehyde. As a result, the uptake of orthophosphate was slow. The maximum adsorption capacity was reached at pH 5.0 and 8.0. It was mainly due to electrostatic attraction of phosphate ions to the protonated free amino groups of chitosan and to active sites of ferrihydrite. Desorption could be occurred optimally using 0.3 M of sulphuric acid. The absorption of SO42- ion to the protonated amino groups and the formation of ionic crosslinking could exchange and desorb phosphate ions. Ferrihydrite was eluted also by the acid. However, the eluted ferrihydrite readsorbed phosphate ions, resulted in minimizing the analysed free phosphate. Keywords: adsorption, phosphate, chitosan-ferrihydrite/glutaraldehide membrane, DGT techniquehttps://jurnal.ugm.ac.id/ijc/article/view/21506 |
| spellingShingle | Barlah Rumhayati Chasan Bisri Wahyu O. Fajarina THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE Indonesian Journal of Chemistry |
| title | THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE |
| title_full | THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE |
| title_fullStr | THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE |
| title_full_unstemmed | THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE |
| title_short | THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE |
| title_sort | performance of chitosan ferrihidryte membrane for phosphate uptake |
| url | https://jurnal.ugm.ac.id/ijc/article/view/21506 |
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