PMID- 36893866
OWN - NLM
STAT- MEDLINE
DCOM- 20230324
LR  - 20230324
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 324
DP  - 2023 May
TI  - Microplastics as carriers of iron and copper nanoparticles in aqueous solution.
PG  - 138332
LID - S0045-6535(23)00599-4 [pii]
LID - 10.1016/j.chemosphere.2023.138332 [doi]
AB  - In recent years, microplastics have attracted a lot of attention due to their 
      excessive spread in the environment, especially in aquatic ecosystems. By sorbing 
      metal nanoparticles on their surface, microplastics can act as carriers of these 
      pollutants in aquatic environments and thus cause adverse effects on the health 
      of living organisms and humans. This study, investigated the adsorption of iron 
      and copper nanoparticles on three different microplastics i.e. polypropylene 
      (PP), polyvinyl chloride (PVC) and polystyrene (PS). In this regard, the effects 
      of parameters such as; pH, duration of contact and initial concentration of 
      nanoparticle solution were investigated. By using atomic absorption spectroscopic 
      analysis, the amount of adsorption of metal nanoparticles by microplastics was 
      measured. The maximum amount of adsorption occurred at pH = 11, after a duration 
      time of 60 min and at the initial concentration of 50 mg L(-1). Scanning electron 
      microscope (SEM) images showed that microplastics have different surface 
      characteristics. The spectra obtained from Fourier transform infrared analysis 
      (FTIR) before and after the adsorption of iron and copper nanoparticles on 
      microplastics were not different, which showed that the adsorption of iron and 
      copper nanoparticles on microplastics was physically and no new functional group 
      was formed. X-ray energy diffraction spectroscopy (EDS) showed the adsorption of 
      iron and copper nanoparticles on microplastics. By examining Langmuir and 
      Freundlich adsorption isotherms and adsorption kinetics, it was found that the 
      adsorption of iron and copper nanoparticles on microplastics is more consistent 
      with the Freundlich adsorption isotherm. Also, pseudo-second-order kinetics is 
      more suitable than pseudo-first-order kinetics. The adsorption ability of 
      microplastics was as follows: PVC > PP > PS, and in general copper nanoparticles 
      were adsorbed more than iron nanoparticles on microplastics.
CI  - Copyright (c) 2023. Published by Elsevier Ltd.
FAU - Mozafarjalali, Malihe
AU  - Mozafarjalali M
AD  - Department of Environmental Science and Engineering, Faculty of Natural 
      Resources, University of Tehran, P.O. Box 4314, Karaj, 31587-77878, Iran.
FAU - Hamidian, Amir Hossein
AU  - Hamidian AH
AD  - Department of Environmental Science and Engineering, Faculty of Natural 
      Resources, University of Tehran, P.O. Box 4314, Karaj, 31587-77878, Iran. 
      Electronic address: a.hamidian@ut.ac.ir.
FAU - Sayadi, Mohammad Hossein
AU  - Sayadi MH
AD  - Department of Environmental Engineering, Faculty of Natural Resources and 
      Environment, University of Birjand, Birjand, Iran.
LA  - eng
PT  - Journal Article
DEP - 20230307
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Microplastics)
RN  - 0 (Plastics)
RN  - 789U1901C5 (Copper)
RN  - E1UOL152H7 (Iron)
RN  - 0 (Polypropylenes)
RN  - 059QF0KO0R (Water)
RN  - 0 (Polystyrenes)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Humans
MH  - Microplastics
MH  - Plastics/chemistry
MH  - Copper/analysis
MH  - Iron/analysis
MH  - Ecosystem
MH  - Polypropylenes
MH  - Water
MH  - Polystyrenes/analysis
MH  - *Nanoparticles
MH  - Adsorption
MH  - *Water Pollutants, Chemical/analysis
MH  - Kinetics
MH  - Spectroscopy, Fourier Transform Infrared
OTO - NOTNLM
OT  - Adsorption
OT  - Carriers of pollutants
OT  - Metal nanoparticles
OT  - Microplastics
OT  - Water pollution
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/03/10 06:00
MHDA- 2023/03/25 06:00
CRDT- 2023/03/09 19:30
PHST- 2022/12/10 00:00 [received]
PHST- 2023/03/03 00:00 [revised]
PHST- 2023/03/04 00:00 [accepted]
PHST- 2023/03/10 06:00 [pubmed]
PHST- 2023/03/25 06:00 [medline]
PHST- 2023/03/09 19:30 [entrez]
AID - S0045-6535(23)00599-4 [pii]
AID - 10.1016/j.chemosphere.2023.138332 [doi]
PST - ppublish
SO  - Chemosphere. 2023 May;324:138332. doi: 10.1016/j.chemosphere.2023.138332. Epub 
      2023 Mar 7.