Competitive metal sorption and desorption onto Kappaphycus Alvarezii, seaweed waste biomass
Competitive metal sorption and desorption onto Kappaphycus alvarezii waste biomass were investigated. Metal sorption capacities were 0.82 mg Cr(III)/g, 0.73 mg Ni(II)/g, 0.67 mg Cd(II)/g, 0.65 mg Cu(II)/g and 0.64 mg Zn(II)/g in multi metal system. Whereas, desorption efficiencies were 66.08%, 71.50...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Malaysian Society of Analytical Sciences
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/22368/1/Competitive%20metal%20sorption%20and%20desorption%20onto%20Kappaphycus%20Alvarezii.pdf http://psasir.upm.edu.my/id/eprint/22368/ http://www.ukm.my/mjas/ |
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| Summary: | Competitive metal sorption and desorption onto Kappaphycus alvarezii waste biomass were investigated. Metal sorption capacities were 0.82 mg Cr(III)/g, 0.73 mg Ni(II)/g, 0.67 mg Cd(II)/g, 0.65 mg Cu(II)/g and 0.64 mg Zn(II)/g in multi metal system. Whereas, desorption efficiencies were 66.08%, 71.50% and 80.44% using 0.1M HNO3, 0.1M HCl and 0.1M H2SO4, respectively. The metal sorption sequence were Cr(III) > Ni(II) > Cd(II) > Cu(II) > Zn(II), while metal desorption sequence were Cd(II) > Zn(II) > Cu(II) > Ni(II) > Cr(III). Fourier transformed infrared spectroscopy (FTIR) technique was used to characterize the seaweed waste biomass. FTIR analysis shown that carbonyl (–C–O) and nitrile (–C≡N) groups interact with the metal ions. The experiments result revealed that Kappaphycus alvarezii waste biomass represent an attractive candidate to remove multi metal ions. |
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