Carboxymethylated-bacterial cellulose for copper and lead ion removal.

Carboxymethylated-bacterial cellulose (CM-BC) was synthesized by Acetobacter xylinum by adding water-soluble carboxymethylated cellulose (CMC) in the culture medium. The CM-BC was examined for the removal of copper and lead ions from aqueous solution compared with BC. The effects of performance parameters such as pH, adsorbent dose, contact time on copper and lead ion adsorption were analyzed. Both BC and CM-BC show good adsorption performance at optimized pH 4.5. Compared with BC, CM-BC performs better adsorption, with the value of 9.67 mg (copper)/g, 22.56 mg (lead)/g for BC and 12.63 mg (copper)/g, 60.42 mg (lead)/g for CM-BC, respectively. The adsorption rate closely follows pseudo-second-order rate model and the adsorption isotherm data well follows the Langmuir model.

[1]  Jay Shah,et al.  Towards electronic paper displays made from microbial cellulose , 2004, Applied Microbiology and Biotechnology.

[2]  Katsutoshi Inoue,et al.  Preparation of phosphorylated bacterial cellulose as an adsorbent for metal ions , 2008 .

[3]  D. Klemm,et al.  Controlling the water content of never dried and reswollen bacterial cellulose by the addition of water-soluble polymers to the culture medium , 2004 .

[4]  J. C. Rocha,et al.  Preconcentration of heavy metals ions from aqueous solutions by means of cellulose phosphate: an application in water analysis. , 1997, Talanta.

[5]  R. Bai,et al.  Mechanisms of Lead Adsorption on Chitosan/PVA Hydrogel Beads , 2002 .

[6]  Rainer Jonas,et al.  Production and application of microbial cellulose , 1998 .

[7]  F. Okieimen,et al.  Removal of cadmium and copper ions from aqueous solution with cellulose graft copolymers , 2005 .

[8]  Marek Kawecki,et al.  The future prospects of microbial cellulose in biomedical applications. , 2007, Biomacromolecules.

[9]  K. Yoshino,et al.  Electrical property of pyrolyzed bacterial cellulose and its intercalation effect , 1991 .

[10]  S. R. Shukla,et al.  Adsorption of Ni(II), Zn(II) and Fe(II) on modified coir fibres , 2006 .

[11]  Hiroyuki Yano,et al.  Optically Transparent Composites Reinforced with Networks of Bacterial Nanofibers , 2005 .

[12]  W. M. Hosny,et al.  Metal chelates with some cellulose derivatives. Part III. Synthesis and structural chemistry of nickel (II) and copper (II) complexes with carboxymethyl cellulose , 1995 .

[13]  M. Chairat,et al.  Adsorption kinetic study of lac dyeing on cotton , 2008 .

[14]  J. Patterson,et al.  Industrial Wastewater Treatment Technology , 1985 .

[15]  Marshall Sittig,et al.  Handbook of toxic and hazardous chemicals , 1981 .

[16]  Toshihiko Satō,et al.  Preparation of aminoalkyl celluloses and their adsorption and desorption of heavy metal ions , 1992 .

[17]  L. Pawłowski.  Physicochemical Methods for Water and Wastewater Treatment , 1982 .

[18]  L. Hong,et al.  Diethylenetriamine-grafted poly(glycidyl methacrylate) adsorbent for effective copper ion adsorption. , 2006, Journal of colloid and interface science.

[19]  S. Tokura,et al.  Biosynthesis of hetero-polysaccharides by Acetobacter xylinum - Synthesis and characterization of metal-ion adsorptive properties of partially carboxymethylated cellulose , 1998 .

[20]  Chhaya Saxena,et al.  Studies on pervaporative characteristics of bacterial cellulose membrane , 2005 .

[21]  R. Mark Bricka,et al.  A review of potentially low-cost sorbents for heavy metals , 1999 .

[22]  D. Danon,et al.  SYNTHESIS OF CELLULOSE BY ACETOBACTER XYLINUM V. Ultrastructure of Polymer , 1962 .

[23]  S. Shukla,et al.  The role of sawdust in the removal of unwanted materials from water. , 2002, Journal of hazardous materials.

[24]  Masatoshi Iguchi,et al.  Bacterial cellulose—a masterpiece of nature's arts , 2000 .

[25]  W. Ngah,et al.  Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents: a review. , 2008, Bioresource technology.

[26]  R. Bai,et al.  Adsorptive removal of copper ions with highly porous chitosan/cellulose acetate blend hollow fiber membranes , 2006 .

[27]  W. Ngah,et al.  Chitosan flakes and chitosan–GLA beads for adsorption of p-nitrophenol in aqueous solution , 2006 .

[28]  M. Hoang,et al.  Isotherm sorption of Cd2+, Co2+, and Ni2+ onto high-yield kraft fibers. , 2006, Journal of colloid and interface science.

[29]  I. Ohad,et al.  SYNTHESIS OF CELLULOSE BY ACETOBACTER XYLINUM , 1965, The Journal of cell biology.

[30]  Jianping Zhai,et al.  Kinetic studies of adsorption of Pb(II), Cr(III) and Cu(II) from aqueous solution by sawdust and modified peanut husk. , 2007, Journal of hazardous materials.

[31]  M. Schramm,et al.  Synthesis of cellulose by Acetobacter xylinum. II. Preparation of freeze-dried cells capable of polymerizing glucose to cellulose. , 1954, The Biochemical journal.

[32]  A. S. Franca,et al.  Untreated coffee husks as biosorbents for the removal of heavy metals from aqueous solutions. , 2008, Journal of hazardous materials.

[33]  R. Gauthier,et al.  Adsorption of copper(II) and chromium(III) ions onto amidoximated cellulose , 2000 .

[34]  M. Chiou,et al.  Equilibrium and kinetic modeling of adsorption of reactive dye on cross-linked chitosan beads. , 2002, Journal of hazardous materials.

[35]  D. Klemm,et al.  Cellulose: fascinating biopolymer and sustainable raw material. , 2005, Angewandte Chemie.

[36]  H. Shawky,et al.  Characterization and adsorption properties of the chelating hydrogels derived from natural materials for possible use in the improvement of groundwater quality , 2006 .

[37]  T. Tashiro,et al.  Removal of mercuric ions by systems based on cellulose derivatives , 1982 .

[38]  R. Gauthier,et al.  The use of amidoximated cellulose for the removalof metal ions and dyes from waste waters , 2002 .