EXAFS and XANES studies of retention of copper and lead by a lignocellulosic biomaterial

被引：47

作者：

Dupont, L ^{[1
]}

Guillon, E ^{[1
]}

Bouanda, J ^{[1
]}

Dumonceau, J ^{[1
]}

Aplincourt, M ^{[1
]}

机构：

[1] Univ Reims, GRECI, F-51687 Reims 2, France

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2002年 / 36卷 / 23期

关键词：

D O I：

10.1021/es025764o

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Lignocellulosic substrate (LS), which is a low cost biomaterial, has a strong complexing ability and can be used in the treatment of wastewaters as biosorbent to remove heavy metals. The speciation of copper and lead to this biomaterial has been studied by X-ray absorption spectroscopy. The copper(II) has a 6-coordinate structure with four oxygen atoms in the equatorial plane at 1.95 Angstrom and two in axial position at 2.35 Angstrom. In the case of lead a particularly low coordination number of about 3 has been obtained. The combination of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) suggested that Cu and Pb are bound to the surface of LS through carboxylic moieties.

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页码：5062 / 5066

页数：5

相关论文

共 42 条

[1] Molecular scale characteristics of Cu(II) bonding in goethite-humate complexes [J].

Alcacio, TE ;

Hesterberg, D ;

Chou, JW ;

Martin, JD ;

Beauchemin, S ;

Sayers, DE .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2001, 65 (09) :1355-1366

[2] ABINITIO STUDIES OF X-RAY ABSORPTION-EDGE IN COPPER-COMPLEXES .1. ATOMIC CU2+ AND CU(II)CL2 [J].

BAIR, RA ;

GODDARD, WA .

PHYSICAL REVIEW B, 1980, 22 (06) :2767-2776

[3] Surface complexation of Pb(II) at oxide-water interfaces .1. XAFS and bond-valence determination of mononuclear and polynuclear Pb(II) sorption products on aluminum oxides [J].

Bargar, JR ;

Brown, GE ;

Parks, GA .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1997, 61 (13) :2617-2637

[4]

Beca C., 1992, EUR WATER POLLUT CON, V2, P13

[5] MULTIPLE-SCATTERING RESONANCES AND STRUCTURAL EFFECTS IN THE X-RAY-ABSORPTION NEAR-EDGE SPECTRA OF FE-II AND FE-III HEXACYANIDE COMPLEXES [J].

BIANCONI, A ;

DELLARICCIA, M ;

DURHAM, PJ ;

PENDRY, JB .

PHYSICAL REVIEW B, 1982, 26 (12) :6502-6508

[6] Use of a NICA-Donnan approach for analysis of proton binding to a lignocellulosic substrate extracted from wheat bran [J].

Bouanda, J ;

Dupont, L ;

Dumonceau, J ;

Aplincourt, M .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2002, 373 (03) :174-182

[7] XAFS study of chromated copper arsenate timber preservative in wood [J].

Bull, DC ;

Harland, PW ;

Vallance, C ;

Foran, GJ .

JOURNAL OF WOOD SCIENCE, 2000, 46 (03) :248-252

[8] SYNTHESIS AND CHARACTERIZATION OF IMINODIACETIC ACID-CELLULOSE SORBENT AND ITS ANALYTICAL AND ENVIRONMENTAL APPLICATIONS IN METAL-ION EXTRACTION [J].

CHAN, WH ;

LAMLEUNG, SY ;

CHENG, KW ;

YIP, YC .

ANALYTICAL LETTERS, 1992, 25 (02) :305-320

[9] REMOVAL OF CUPRIC IONS FROM AQUEOUS-SOLUTIONS BY CONTACT WITH CORNCOBS [J].

COSTA, ETH ;

WINKLERHECHENLEITNER, AA ;

GOMEZPINEDA, EA .

SEPARATION SCIENCE AND TECHNOLOGY, 1995, 30 (12) :2593-2602

[10] Tight metal binding by humic acids and its role in biomineralization [J].

Davies, G ;

Fataftah, A ;

Cherkasskiy, A ;

Ghabbour, EA ;

Radwan, A ;

Jansen, SA ;

Kolla, S ;

Paciolla, MD ;

Sein, LT ;

Buermann, W ;

Balasubramanian, M ;

Budnick, J ;

Xing, BS .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (21) :4047-4060

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