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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2022.2077134
|2 doi
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|a pubmed24n1135.xml
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|a (DE-627)NLM340742771
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|a (NLM)35546108
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Straioto, Henrique
|e verfasserin
|4 aut
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|a Modification of natural zeolite clinoptilolite and ITS application in the adsorption of herbicides
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 23.10.2023
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|a Date Revised 23.10.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The clinoptilolite natural zeolites (NZs) posses low herbicide adsorption capacity demanding acid-, alkali-, or salt chemical modifications that enhance its adsorption. However, this may affect the material structure and charge distribution. Alternatively, zeolites may be synthesized at a high cost and time-consuming process. Consequently, new methods, such as the hydrothermal method, for NZ modification needs to be studied. In this sense, a novel surface-modified zeolite (SMZ), using hexadecyltrimethylammonium bromide (CTAB), in acid media was produced by the hydrothermal method and applied for the adsorption of Atrazine (ATZ), Diuron (DIU) and 2,4-D. Commercial NZ and SMZ were characterized by SEM, XRD, TGA, FT-IR, AA spectroscopy, pHPZC, Zeta potential and N2-physisorption. The SMZ chosen for the adsorption experiments was the one with the highest modification yield and adsorption capacity obtained from a complete design of experiments (CTAB=0.74 ; D=12 Mesh; HCl=0.1 M; t=6 h and T=205 ºC). The adsorption experiments revealed that the SMZ adsorption capacity for the herbicide 2,4-D (qmax=9.02 mg/g) was greater than that obtained for ATZ (qmax=2.11 mg/g) and DIU (qmax=1.85 mg/g), which was explained by the presence of the hydroxyl group and by geometric characteristics of the 2,4-D. Adsorption models' fitting showed that the adsorption of 2,4-D onto SMZ were best described by pseudo-second order kinetic (k2=0.005-0.006 g/mg.min; qe,exp=7.122-8.614 mg/g) and Langmuir isothermal model (KL=0.283-0.499 L/mg; qm=7.167-7.995 mg/g). These results indicate that the hydrothermal method is a viable alternative to enable the use of NZs for the adsorption of emerging contaminants from wastewater
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|a Journal Article
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|a cationic surfactant
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|a emerging contaminants
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|a hydrothermal modification
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|a pesticides
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|a water treatment
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|a Herbicides
|2 NLM
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|a clinoptilolite
|2 NLM
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|a 12173-10-3
|2 NLM
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|a Zeolites
|2 NLM
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|a 1318-02-1
|2 NLM
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|a Cetrimonium
|2 NLM
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|a Z7FF1XKL7A
|2 NLM
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|a Surface-Active Agents
|2 NLM
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|a Diuron
|2 NLM
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|a 9I3SDS92WY
|2 NLM
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|a 2,4-Dichlorophenoxyacetic Acid
|2 NLM
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|a 2577AQ9262
|2 NLM
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1 |
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|a Viotti, Paula Valéria
|e verfasserin
|4 aut
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1 |
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|a Moura, Alexandre Amado de
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Diório, Alexandre
|e verfasserin
|4 aut
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1 |
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|a Scaliante, Mara Heloisa Neves Olsen
|e verfasserin
|4 aut
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|a Moreira, Wardleison Martins
|e verfasserin
|4 aut
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|a Vieira, Marcelo Fernandes
|e verfasserin
|4 aut
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1 |
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|a Bergamasco, Rosângela
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 44(2023), 26 vom: 12. Nov., Seite 3949-3964
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:44
|g year:2023
|g number:26
|g day:12
|g month:11
|g pages:3949-3964
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|u http://dx.doi.org/10.1080/09593330.2022.2077134
|3 Volltext
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|a AR
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|d 44
|j 2023
|e 26
|b 12
|c 11
|h 3949-3964
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