Sorption of As(V) ions by akaganeite-type nanocrystals

被引：232

作者：

Deliyanni, EA ^{[1
]}

Bakoyannakis, DN ^{[1
]}

Zouboulis, AI ^{[1
]}

Matis, KA ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Chem, Div Chem Technol, GR-54124 Thessaloniki, Greece

来源：

CHEMOSPHERE | 2003年 / 50卷 / 01期

关键词：

arsenic; arsenate; akaganeite; removal; sorption; adsorbent; ionic strength;

D O I：

10.1016/S0045-6535(02)00351-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A priority pollution problem, the removal of arsenate oxyanions from dilute aqueous solutions by sorption onto synthetic akaganeite (beta-FeO(OH)) was the aim of the present study. This is an innovative inorganic adsorbent material prepared in the laboratory, following a new method of preparation. The effect of akaganeite and arsenate concentration, the contact time, temperature, solution pH value, and ionic strength variation on the treatment process was mainly investigated during this study. Typical adsorption isotherms were determined, which were found to fit sufficiently the typical Langmuir equation. The mechanism of sorption was examined by electrokinetic, X-ray diffraction, Fourier transmission infrared and scanning electron microscopy measurements. Promising results were obtained, due to the favourite characteristics of the adsorbent applied. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：155 / 163

页数：9

共 19 条

[1]

DAVIS JA, 1989, ENV CHEM ALUMINUM

[2] Akaganeite-type β-FeO(OH) nanocrystals:: preparation and characterization [J].

Deliyanni, EA ;

Bakoyannakis, DN ;

Zouboulis, AI ;

Matis, KA ;

Nalbandian, L .

MICROPOROUS AND MESOPOROUS MATERIALS, 2001, 42 (01) :49-57

[3] SURFACE-CHEMISTRY OF FERRIHYDRITE .2. KINETICS OF ARSENATE ADSORPTION AND COPRECIPITATION [J].

FULLER, CC ;

DAVIS, JA ;

WAYCHUNAS, GA .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1993, 57 (10) :2271-2282

[4] MODELING IONIC-STRENGTH EFFECTS ON ANION ADSORPTION AT HYDROUS OXIDE SOLUTION INTERFACES [J].

HAYES, KF ;

PAPELIS, C ;

LECKIE, JO .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1988, 125 (02) :717-726

[5] CHARACTERIZATION OF ARSENATE ADSORPTION ON HYDROUS IRON-OXIDE USING CHEMICAL AND PHYSICAL METHODS [J].

HSIA, TH ;

LO, SL ;

LIN, CF ;

LEE, DY .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1994, 85 (01) :1-7

[6]

KELLER RJ, 1996, SIGMA LIB FT IR SPEC, V2

[7] PROCESSING AN AURIFEROUS PYRITE CONCENTRATE IN THE PRESENCE OF REDUCING AGENTS [J].

KYDROS, KA ;

MATIS, KA .

CANADIAN METALLURGICAL QUARTERLY, 1995, 34 (01) :15-20

[8] Arsenic crisis in Bangladesh [J].

Lepkowski, W .

CHEMICAL & ENGINEERING NEWS, 1998, 76 (46) :27-29

[9] Flotation removal of As(V) onto goethite [J].

Matis, KA ;

Zouboulis, AI ;

Malamas, FB ;

Afonso, MDR ;

Hudson, MJ .

ENVIRONMENTAL POLLUTION, 1997, 97 (03) :239-245

[10] SEPARATION OF GERMANIUM AND ARSENIC FROM SOLUTIONS BY FLOTATION [J].

MATIS, KA ;

PAPADOYANNIS, IN ;

ZOUMBOULIS, AI .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 1987, 21 (1-2) :83-92

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