Adsorption of bentazone and imazapyc from water by using functionalized silica: Experimental and computational analysis

被引：12

作者：

Spaltro, Agustin ^{[1
,4
]}

Simonetti, Sandra ^{[2
,3
,4
]}

Laurella, Sergio ^{[1
,5
]}

Ruiz, Danila ^{[1
,4
]}

Diaz Company, Andres ^{[2
,5
]}

Juan, Alfredo ^{[2
,4
]}

Allegretti, Patricia ^{[1
]}

机构：

[1] UNLP, Fac Ciencias Exactas, CEDECOR Ctr Estudio Compuestos Organ, Calle 115 & 47, RA-1900 La Plata, Buenos Aires, Argentina

[2] UNS, CONICET, Dept Fis, Inst Fis Sur IFISUR, Av LN Alem 1253,B8000CPB, Bahia Blanca, Buenos Aires, Argentina

[3] UTN, 11 Abril 461,B8000LMI, Bahia Blanca, Buenos Aires, Argentina

[4] Consejo Nacl Invest Cient & Tecn, CONICET, Buenos Aires, DF, Argentina

[5] Comis Invest Cient Prov Buenos Aires, CIC BA, Buenos Aires, DF, Argentina

来源：

JOURNAL OF CONTAMINANT HYDROLOGY | 2019年 / 227卷

关键词：

Adsorption; Functionalized silica; Bentazone; Imazapyc; Computational analysis; MESOPOROUS SILICA; GROUND-WATER; SURFACE; IMIDAZOLINONE; CATALYST; LIQUID; AREA;

D O I：

10.1016/j.jconhyd.2019.103542

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, silica and functionalized silica materials (3-aminopropyl and 3-mercapto derivatives) were successfully used for the removal of the pesticides bentazone and imazapyc from aqueous solutions. Adsorbent materials were characterized by BET isotherms and FT-IR spectroscopy (confirming the functionalization), and their equilibrium adsorption capacity was evaluated at different ionic strengths. It is observed that the maximum adsorption capacities decrease in the order 3-aminopropyl-derivative > silica > 3-mercaptopropyl derivative. An increase in ionic strength produces an enhancement in the removal of pesticides. All isotherms are lb -type and follow the Langmuir model, suggesting a monolayer physical adsorption process.

引用

页数：9

共 51 条

[1] Removal of acid dyes from aqueous media by adsorption onto amino-functionalized nanoporous silica SBA-3
Anbia, Mansoor
Salehi, Samira
[J]. DYES AND PIGMENTS, 2012, 94 (01) : 1 - 9
[2] [Anonymous], 2020, Structure Determination of Organic Compounds Tables of Spectral Data, DOI DOI 10.1007/978-3-662-62439-5
[3] Bader R. F., 1990, ENCY COMPUTATIONAL C
[4] Occurrence of sulfonylurea, sulfonamide, imidazolinone, and other herbicides in rivers, reservoirs and ground water in the Midwestern United States, 1998
Battaglin, WA
Furlong, ET
Burkhardt, MR
Peter, CJ
[J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2000, 248 (2-3) : 123 - 133
[5] VIBRATIONAL SPECTRA OF VITREOUS SILICA GERMANIA AND BERYLLIUM FLUORIDE
BELL, RJ
BIRD, NF
DEAN, P
[J]. JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1968, 1 (02): : 299 - &
[6] PROJECTOR AUGMENTED-WAVE METHOD
BLOCHL, PE
[J]. PHYSICAL REVIEW B, 1994, 50 (24): : 17953 - 17979
[7] Adsorption of bentazone herbicide onto mesoporous silica: application to environmental water purification
Bruzzoniti, M. C.
De Carlo, R. M.
Rivoira, L.
Del Bubba, M.
Pavani, M.
Riatti, M.
Onida, B.
[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2016, 23 (06) : 5399 - 5409
[8] Multi-residue method for determination of 58 pesticides, pharmaceuticals and personal care products in water using solvent demulsification dispersive liquid-liquid microextraction combined with liquid chromatography-tandem mass spectrometry
Caldas, Sergiane Souza
Rombaldi, Caroline
de Oliveira Arias, Jean Lucas
Marube, Liziane Cardoso
Primel, Ednei Gilberto
[J]. TALANTA, 2016, 146 : 676 - 688
[9] Density Functional Theory study of the hydrogen storage in a vacancy zone of an iron-nickel cell
Canto, G.
Salazar-Ehuan, I.
Gonzalez-Sanchez, J.
Tapia, A.
Quijano, R.
Simonetti, S.
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (16) : 8744 - 8748
[10] Mercaptopropyl-modified mesoporous silica: A remarkable support for the preparation of a reusable, heterogeneous palladium catalyst for coupling reactions
Crudden, CM
Sateesh, M
Lewis, R
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (28) : 10045 - 10050

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