The transformation of ferrihydrite in the presence of trace Fe(II): The effect of the anionic media

被引：59

作者：

Liu, Hui ^{[1
,2
]}

Guo, Hui ^{[1
]}

Li, Ping ^{[1
,2
]}

Wei, Yu ^{[1
,2
]}

机构：

[1] Hebei Normal Univ, Sch Chem & Mat Sci, Shijiazhuang 050016, Peoples R China

[2] Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Shijiazhuang 050016, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 10期

关键词：

Ferrihydrite; Fe(II); SO42-; medium; Dissolution re-precipitation; Solid-state transformation; Goethite; Hematite;

D O I：

10.1016/j.jssc.2008.06.052

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The transformation from ferrihydrite to various iron oxides and iron oxyhydroxides has been given much attention not only in environmental science and geochemistry but also ill biology and material science. This laboratory study attempted to investigate Fe(II)-induced transformation of ferrihydrite in sulfate-rich medium. The results indicate that the transformation in sulfate-rich medium differs from that in Cl- medium in the species, the amount and the morphology of products and transformation rate. Lepidocrocite is a main ingredient in the product in Cl- medium at room temperature (IRT), while goethite is the only product in SO42- medium at RT. Goethite particles obtained in Cl medium are star-like but rod-like in SO42- medium. The transformation rate in the latter medium is obviously slower than that in the former medium. The formation of lepidocrocite depends on both the ionic strength of the system and the dissolution rate of ferrihydrite. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：2666 / 2671

页数：6

共 22 条

[1] PHASE-TRANSFORMATIONS IN THE FERRIHYDRITE-CYSTEINE SYSTEM [J].

CORNELL, RM ;

SCHNEIDER, W ;

GIOVANOLI, R .

POLYHEDRON, 1989, 8 (23) :2829-2836

[2] EFFECT OF SOLUTION CONDITIONS ON THE PROPORTION AND MORPHOLOGY OF GOETHITE FORMED FROM FERRIHYDRITE [J].

CORNELL, RM ;

GIOVANOLI, R .

CLAYS AND CLAY MINERALS, 1985, 33 (05) :424-432

[3]

CORNELL RM, 2003, IRON OXIDES, P206

[4] The transformation of ferrihydrite into goethite or hematite, revisited [J].

Cudennec, Y ;

Lecerf, A .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (03) :716-722

[5]

GEORGESONANGUEM.G, 2005, ENV SCI, V39, P9147

[6] Competing Fe(II)-induced mineralization pathways of ferrihydrite [J].

Hansel, CM ;

Benner, SG ;

Fendorf, S .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (18) :7147-7153

[7]

INSIRVEILI LN, 1975, INORG CHEM RUSSIA, V20, P2388

[8] Occurrence and constitution of natural and synthetic ferrihydrite, a widespread iron oxyhydroxide [J].

Jambor, JL ;

Dutrizac, JE .

CHEMICAL REVIEWS, 1998, 98 (07) :2549-2585

[9] Effects of Zn(II), Cu(II), Mn(II), Fe(II), NO3-, or SO42- at pH 6.5 and 8.5 on transformations of hydrous ferric oxide (HFO) as evidenced by Mossbauer spectroscopy [J].

Jang, JH ;

Dempsey, BA ;

Catchen, GL ;

Burgos, WD .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 221 (1-3) :55-68

[10] Humic acid-, ferrihydrite-, and aluminosilicate-coated sands for column transport experiments [J].

Jerez, J ;

Flury, M .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 273 (1-3) :90-96

← 1 2 3 →