| Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by cellulose and mercerized cellulose chemically modified with succinic anhydride. | |
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MedLine Citation:
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PMID: 17706418 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This work describes the preparation of new chelating material from mercerized cellulose. The first part treats the chemical modification of non-mercerized cellulose (cell 1) and mercerized cellulose (cell 2) with succinic anhydride. Mass percent gains (mpg) and degree of succinylation (DS) of cell 3 (from cell 1) and cell 4 (from cell 2) were calculated. Cell 4 in relation to cell 3 exhibited an increase in mpg and in the concentration of carboxylic functions of 68.9% and 2.8 mmol/g, respectively. Cells 5 and 6 were obtained by treatment of cells 3 and 4 with bicarbonate solution to release the carboxylate functions and characterized by FTIR. The second part compares the adsorption capacity of cells 5 and 6 for Cu2+, Cd2+, and Pb2+ ions in an aqueous single metal solution. Adsorption isotherms were developed using Langmuir model. Cell 6 in relation to cell 5 exhibited an increase in Qmax for Cu2+ (30.4 mg/g), Cd2+ (86.0 mg/g) and Pb2+ (205.9 mg/g). |
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Authors:
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Leandro Vinícius Alves Gurgel; Osvaldo Karnitz Júnior; Rossimiriam Pereira de Freitas Gil; Laurent Frédéric Gil |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-08-13 |
Journal Detail:
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Title: Bioresource technology Volume: 99 ISSN: 0960-8524 ISO Abbreviation: Bioresour. Technol. Publication Date: 2008 May |
Date Detail:
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Created Date: 2008-03-03 Completed Date: 2008-06-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
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Languages: eng Pagination: 3077-83 Citation Subset: IM |
Affiliation:
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Departamento de Química, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto, Minas Gerais, Brazil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption* Cadmium* Cellulose* Chromatography, Paper Copper* Crystallography Hydrogen-Ion Concentration Lead* Mercury Metals / chemistry* Solutions Succinic Anhydrides Water |
| Chemical | |
Reg. No./Substance:
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0/Metals; 0/Solutions; 0/Succinic Anhydrides; 108-30-5/succinic anhydride; 7439-92-1/Lead; 7439-97-6/Mercury; 7440-43-9/Cadmium; 7440-50-8/Copper; 7732-18-5/Water; 9004-34-6/Cellulose |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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