Removal of nitrophenol pesticides from aqueous solutions by layered double hydroxides and their calcined products

被引：63

作者：

Chaara, D. ^{[1
,2
]}

Pavlovic, I. ^{[1
]}

Bruna, F. ^{[1
]}

Ulibarri, M. A. ^{[1
]}

Draoui, K. ^{[2
]}

Barriga, C. ^{[1
]}

机构：

[1] Univ Cordoba, Dept Quim Inorgan & Ingn Quim, E-14071 Cordoba, Spain

[2] Fac Sci, Lab LPCIE, Dept Chim, Tetouan, Morocco

来源：

APPLIED CLAY SCIENCE | 2010年 / 50卷 / 03期

关键词：

Hydrotalcite; Pesticide; Adsorption; Dinitrophenol; Dinitrocresol; INTERLAYER ANION; HYDROTALCITE; ADSORPTION; SORBENT; INTERCALATION; CLAYS;

D O I：

10.1016/j.clay.2010.08.002

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：

The ability of MgAl layered double hydroxides (LDHs) and their calcined products to adsorb the water contaminants 2 4-dinitrophenol (DNP) and 2-methyl-4 6-dinitrophenol (DNOC) was assessed Adsorption tests were conducted on LDHs with variable Mg/Al ratios (and variable layer charge) pH values contact times and initial pesticide concentrations to identify the optimum conditions for the intended purpose Adsorbents and adsorption products were characterized by X-ray diffraction and FT-IR spectroscopy as well as atomic absorption spectroscopy and thermal analyses The amounts of pesticides removed from water were determined by UV-Vis spectrophotometry All adsorbents except the carbonate-containing hydrotalcite possessed a very high adsorption capacity for both contaminants (C) 2010 Elsevier B V All rights reserved

引用

页码：292 / 298

页数：7

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