Document Detail

Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by cellulose and mercerized cellulose chemically modified with succinic anhydride.
MedLine Citation:
PMID:  17706418     Owner:  NLM     Status:  MEDLINE    
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).
Leandro Vinícius Alves Gurgel; Osvaldo Karnitz Júnior; Rossimiriam Pereira de Freitas Gil; Laurent Frédéric Gil
Related Documents :
16607538 - Binding of galectin-1 (gal-1) to the thomsen-friedenreich (tf) antigen on trophoblast c...
11423158 - Rethinking the role of ceruloplasmin in brain iron metabolism.
18476258 - The cellular metabolism and effects of gold complexes.
9826428 - Regulation of nitric oxide synthase induction by iron and glutathione in asbestos-treat...
19595468 - No mantle formation in rodent islets -- the prototype of islet revisited.
10900048 - Intracellular distribution, cell-to-cell trafficking and tubule-inducing activity of th...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-08-13
Journal Detail:
Title:  Bioresource technology     Volume:  99     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-03-03     Completed Date:  2008-06-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3077-83     Citation Subset:  IM    
Departamento de Química, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto, Minas Gerais, Brazil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Chromatography, Paper
Hydrogen-Ion Concentration
Metals / chemistry*
Succinic Anhydrides
Reg. No./Substance:
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

Previous Document:  Production of ethanol from soybean hull hydrolysate by osmotolerant Candida guilliermondii NRRL Y-20...
Next Document:  Development of alcoholic and malolactic fermentations in highly acidic and phenolic apple musts.