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HERO ID
3859186
Reference Type
Journal Article
Title
Removal of phthalate esters (PAEs) by zeolite/Fe3O4: Investigation on the magnetic adsorption separation, catalytic degradation and toxicity bioassay
Author(s)
Mesdaghinia, A; Azari, Ali; Nodehi, RN; Yaghmaeian, K; Bharti, AK; Agarwal, S; Gupta, VK; Sharafi, K
Year
2017
Is Peer Reviewed?
Yes
Journal
Journal of Molecular Liquids
ISSN:
0167-7322
Volume
233
Page Numbers
378-390
Language
English
DOI
10.1016/j.molliq.2017.02.094
Web of Science Id
WOS:000401202500047
Abstract
Zeolite/Fe3O4 magnetic nanocomposite (MZNC), was successfully prepared using in situ co-precipitation method and applied for the adsorption and degradation of phthalate esters in the presence of H2O2. The surface morphology of MZNC was characterized by XRD, SEM, TEM, FTIR, BET and VSM techniques. The effects of Fe3O4 loading, pH, contact time, initial MZNC and PAE concentration, temperature and co-esters on the removal of PAE were examined. The maximum removal by adsorption were 95.4% and 41.14% after 30 min (equilibrium time), at pH 3 and 0.2 g/L adsorbent dosage in initial concentration of 10 and 50 mg/L, whereas the MZNC-H2O2 process led to higher removal of DEP (99.7%) in initial concentration of 50 mg/L after 9 min. Furthermore, the MZNC showed stable activity and convenient recycling. The mechanism of the DMP, MMP and MBP adsorption as the main competitors for DEP adsoiption on MZNC was investigated. The MZNC proved the significant ability of adsorption and degradation efficiency in term of DEP rather than the bare Fe3O4 in the batch experiments (99.7% vs. 51.23%). The enhanced degradation efficiency of MZNC could be due to the DEP enrichment by Fe3O4 molecules in the vicinities of active sites. Daphnia magna and Ceriodaphnia dubia were used as a test organism for assess the left over toxicity in effluents containing DEP, before and after treatment process. (C) 2017 Elsevier B.V. All rights reserved.
Keywords
Phthalate esters; Dimethyl phthalate; Magnetite zeolite nanocomposite; Modeling adsorption; Heterogeneous catalyst; Toxicity bioassay
Tags
IRIS
•
Diethyl phthalate (DEP)
Database searches
Jul 2017 update
Web of Science
Jan 2020 update
Web of Science
Excluded: No Primary Data on Health Effects
Use in sample prep or assay
•
Nitrate/Nitrite
Broad LitSearch 2016/1/1 - 2017/12/5
Refs found by LitSearch but not ATSDR/IARC
WoS
Refs found only by 2017 LitSearch or Citation Mapping
Ref Types 12/2017
All Others
LitSearch Update 2016-2017
WoS
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