Modified halloysite as an adsorbent for prometryn from aqueous solutions

被引：31

作者：

Grabka, Danuta ^{[1
,2
]}

Raczynska-Zak, Marta ^{[1
,2
]}

Czech, Kamil ^{[1
,2
]}

Slomkiewicz, Piotr Marek ^{[1
,2
]}

Jozwiak, Malgorzata Anna ^{[3
]}

机构：

[1] Jan Kochanowski Univ, Inst Chem, PL-25406 Kielce, Poland

[2] Jan Kochanowski Univ, Struct Res Lab, PL-25406 Kielce, Poland

[3] Jan Kochanowski Univ, Dept Environm Protect & Modelling, PL-25406 Kielce, Poland

来源：

APPLIED CLAY SCIENCE | 2015年 / 114卷

关键词：

Halloysite; Prometryn; Adsorption; Desorption; 2,4-DICHLOROPHENOXY ACETIC-ACID; IN-VITRO RELEASE; ACTIVATED CARBON; SILICA-GEL; SURFACE MODIFICATION; SUSTAINED-RELEASE; WASTE-WATER; REMOVAL; ADSORPTION; HERBICIDES;

D O I：

10.1016/j.clay.2015.06.012

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：

Adsorption behavior of prometryn (2,4-bis (isopropylamino)-6-methylthio-s-triazine) on halloysite minerals has been studied in order to consider the application of such adsorbents in water purification. Halloysite, activated in various ways, was characterized by ASAP, SEM/EDS. Batch mode and flow system have been employed, using prometryn aqueous solutions. Various parameters were studied for both systems. Adsorption capacity was determined as a function of adsorbate concentration, of optimum contact time, optimum dose and adsorbent fragmentation. It was found that at pH = 5 the best adsorptive properties for prometryn are obtained for halloysite treated with 96% H2SO4. Such adsorption matches Langmuir and Freundlich models and is in a good agreement with pseudo-second order kinetic model. The desorption of prometryn from halloysite was also studied. The performed studies show that halloysite treated with 96% H2SO4 holds the great potential for removal of water impurities such as prometryn. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：321 / 329

页数：9

共 74 条

[1] The characterization of prepared organomontmorillonite (DEDMAM) and sorption of phenoxyalkanoic acid herbicides from aqueous solution [J].

Akçay, G ;

Akçay, M ;

Yurdakoç, K .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 296 (02) :428-433

[2] Removal of 2,4-dichlorophenoxy acetic acid from aqueous solutions by partially characterized organophilic sepiolite:: thermodynamic and kinetic calculations [J].

Akçay, G ;

Akçay, M ;

Yurdakoç, K .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 281 (01) :27-32

[3]

[Anonymous], 1994, Herbicide handbook

[4] Study of properties of chemically modified samples of halloysite mineral with X-ray fluorescence and X-ray powder diffraction methods [J].

Banas, D. ;

Kubala-Kukus, A. ;

Braziewicz, J. ;

Majewska, U. ;

Pajek, M. ;

Wudarczyk-Mocko, J. ;

Czech, K. ;

Garnuszek, M. ;

Slomkiewicz, P. ;

Szczepanik, B. .

RADIATION PHYSICS AND CHEMISTRY, 2013, 93 :129-134

[5]

Bansal O.P., 2009, J INDIAN SOC SOIL SC, V57, P287

[6]

Bayliss P., 1989, Powder Diffr, P19, DOI [10.1017/S0885715600016249, DOI 10.1017/S0885715600016249]

[7] Variability of pesticide exposure in a stream mesocosm system: Macrophyte-dominated vs. non-vegetated sections [J].

Beketov, Mikhail A. ;

Liess, Matthias .

ENVIRONMENTAL POLLUTION, 2008, 156 (03) :1364-1367

[8]

Brigatti MF, 2006, DEV CLAY SCI, V1, P19, DOI 10.1016/S1572-4352(05)01002-0

[9] Electrochemical degradation of chlorophenoxy and chlorobenzoic herbicides in acidic aqueous medium by the peroxi-coagulation method [J].

Brillas, E ;

Boye, B ;

Baños, MA ;

Calpe, JC ;

Garrido, JA .

CHEMOSPHERE, 2003, 51 (04) :227-235

[10] Mitigating with macrophytes: Submersed plants reduce the toxicity of pesticide-contaminated water to zooplankton [J].

Brogan, William R., III ;

Relyea, Rick A. .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2013, 32 (03) :699-706

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