Adsorption of linuron by an Algerian palygorskite modified with magnetic iron

被引：28

作者：

Belaroui, Lala Setti ^{[1
,2
]}

Ouali, Affaf ^{[1
]}

Bengueddach, Abdelkader ^{[1
]}

Lopez Galindo, Alberto ^{[3
]}

Pena, Aranzazu ^{[3
]}

机构：

[1] Univ Oran 1 Ahmed Ben Bella, Fac Appl & Exact Sci, LCM, BP 1524 Oran El MNaouer, Oran, Algeria

[2] Univ Oran 1 Ahmed Ben Bella, Fac Med, Dept Pharm, BP 1510 Oran El MNaouer, Oran, Algeria

[3] Univ Granada, CSIC, Inst Andaluz Ciencias Tierra, Avda Palmeras 4, Granada 18100, Spain

来源：

APPLIED CLAY SCIENCE | 2018年 / 164卷

关键词：

Palygorskite; Magnetic iron oxides; Pesticide; Water pollution; Adsorption; PESTICIDE-RESIDUES; LIQUID-CHROMATOGRAPHY; CATIONIC SURFACTANT; METHYLENE-BLUE; NANOPARTICLES; SORPTION; WATER; SOILS; RISK; MALFORMATIONS;

D O I：

10.1016/j.clay.2018.03.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three types of palygorskite nanoparticles for the retention of the herbicide linuron in water were tested: purified palygorskite (Pur Pal), palygorskite modified by magnetic iron oxides (FeO Pal(1)) and this one synthesized by hydrothermal treatment (FeO Pal(2)). The adsorbents were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR), electron microscopy (TEM) and chemical analysis (XRF). XRD patterns indicate the presence of a magnetic Fe2O3 compound, and TEM images evidence how these crystals cover the palygorskite fibers' surface with different crystallite sizes (7-15 rim in FeO Pal(1) and 30-50 nm in FeO Pal(2)). The adsorbent mass, the contact time, the initial adsorbate concentration and the effect of temperature were evaluated for linuron retention. Adsorption kinetics revealed that adsorption followed a pseudo-second order equation. Adsorption isotherms were better fitted to the Freundlich than to the Langmuir equation. Removed linuron amounts were ranged as FeO Pal(2) (83%) > FeO Pal(1) (55%) > Pur Pal (27%). The adsorbents could be used as a cheap alternative for pesticide removal in environmentally-contaminated waters.

引用

页码：26 / 33

页数：8

共 53 条

[1] Removal of organic pollutants from water by modified cellulose fibres [J].

Alila, Sabrine ;

Boufi, Sami .

INDUSTRIAL CROPS AND PRODUCTS, 2009, 30 (01) :93-104

[2]

[Anonymous], 2015, PESTICIDE PROPERTIES

[3]

[Anonymous], 1963, J. Sanit. Eng. Div. Am. Soc. Civ. Eng, DOI DOI 10.1061/JSEDAI.0000430

[4] Adsorption/desorption of fungicides in natural clays from Southeastern Spain [J].

Antonio Rodriguez-Liebana, Jose ;

Lopez-Galindo, Alberto ;

Jimenez de Cisneros, Concepcion ;

Galvez, Antonia ;

Rozalen, Marisa ;

Sanchez-Espejo, Rita ;

Caballero, Emilia ;

Pena, Aranzazu .

APPLIED CLAY SCIENCE, 2016, 132 :402-411

[5] The mobility and degradation of pesticides in soils and the pollution of groundwater resources [J].

Arias-Estevez, Manuel ;

Lopez-Periago, Eugenio ;

Martinez-Carballo, Elena ;

Simal-Gandara, Jesus ;

Mejuto, Juan-Carlos ;

Garcia-Rio, Luis .

AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2008, 123 (04) :247-260

[6] Characterization of the Atrazine Sorption Process on Andisol and Ultisol Volcanic Ash-Derived Soils: Kinetic Parameters and the Contribution of Humic Fractions [J].

Baez, Maria E. ;

Fuentes, Edwar ;

Espinoza, Jeannette .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2013, 61 (26) :6150-6160

[7]

Belaroui L. S., 2014, REV SOC ESPAFIOLA MI

[8] Environmental factors influencing sorption of heterocyclic aromatic compounds to soil [J].

Bi, Erping ;

Schmidt, Torsten C. ;

Haderlein, Stefan B. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (09) :3172-3178

[9] Risk assessment of herbicides and booster biocides along estuarine continuums in the Bay of Vilaine area (Brittany, France) [J].

Caquet, Th. ;

Roucaute, M. ;

Mazzella, N. ;

Delmas, F. ;

Madigou, C. ;

Farcy, E. ;

Burgeot, Th. ;

Allenou, J. -P. ;

Gabellec, R. .

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2013, 20 (02) :651-666

[10] Evolution over time of the agricultural pollution of waters in an area of Salamanca and Zamora (Spain) [J].

Carabias-Martínez, R ;

Rodríguez-Gonzalo, E ;

Fernández-Laespada, ME ;

Calvo-Seronero, L ;

Sánchez-San Román, FJ .

WATER RESEARCH, 2003, 37 (04) :928-938

← 1 2 3 4 5 6 →