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Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique

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Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique. / Pouran, H.; Alkasbi, M.; Lahive, E. et al.
In: Science of the Total Environment, Vol. 793, 148654, 01.11.2021.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Pouran, H, Alkasbi, M, Lahive, E, Lofts, S & Zhang, H 2021, 'Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique', Science of the Total Environment, vol. 793, 148654. https://doi.org/10.1016/j.scitotenv.2021.148654

APA

Pouran, H., Alkasbi, M., Lahive, E., Lofts, S., & Zhang, H. (2021). Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique. Science of the Total Environment, 793, Article 148654. https://doi.org/10.1016/j.scitotenv.2021.148654

Vancouver

Pouran H, Alkasbi M, Lahive E, Lofts S, Zhang H. Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique. Science of the Total Environment. 2021 Nov 1;793:148654. Epub 2021 Jun 24. doi: 10.1016/j.scitotenv.2021.148654

Author

Pouran, H. ; Alkasbi, M. ; Lahive, E. et al. / Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique. In: Science of the Total Environment. 2021 ; Vol. 793.

Bibtex

@article{37b00a26dae441bf81d92e23e0e3b98a,
title = "Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique",
abstract = "A major gap in understanding nanomaterials behaviour in the environment is a lack of reliable tools to measure their available concentrations. In this research we use diffusive gradients in thin films (DGT) for measuring concentrations of zinc oxide nanoparticles (ZNO NPs) in soils. Available nanoparticle concentrations were assessed by difference, using paired DGT devices with and without 1000 MWCO dialysis membranes to exclude NPs. We used ZnO because its toxic effects are accelerated through dissolution to Zn2+. Our test soils had different pH and organic matter (OM) contents, which both affect the dissolution rate of ZnO NPs. Woburn (pH ≈ 6.9, OM ≈ 1.8%) and Lufa (pH ≈ 5.9, OM ≈ 4.2%) soils were spiked to a single concentration of 500 mg of ZnO NPs per 1 kg of soil and the available concentrations of ZnO NPs and dissolved zinc were evaluated in 3, 7, 14, 21, 28, 60, 90, 120, 150 and 180 day intervals using DGT. The results showed that the dissolution of ZnO NPs, as well as the available concentrations of both dissolved and nanoparticulate Zn, was much higher in Lufa soil than in Woburn. This work demonstrates that DGT can be used as a simple yet reliable technique for determining concentrations of ZnO NPs in soils and probing its dissolution kinetics. {\textcopyright} 2018 Elsevier B.V.",
keywords = "Chelex, Contaminated soils, DGT, Dialysis membrane, Diffusive gradients in thin-films, Nanoparticles, Zinc oxide dissolution, ZnO NPs, Dialysis, Diffusion in solids, Dissolution, Oxide films, Soil pollution, Soils, Thin films, ZnO nanoparticles, Diffusive gradients in thin film techniques, Diffusive gradients in thin films, Organics, ZnO, ZnO NP, II-VI semiconductors, concentration (composition), contaminated land, diffusion, dissolution, membrane, nanoparticle, oxide, reaction kinetics, soil pollution, zinc",
author = "H. Pouran and M. Alkasbi and E. Lahive and S. Lofts and H. Zhang",
year = "2021",
month = nov,
day = "1",
doi = "10.1016/j.scitotenv.2021.148654",
language = "English",
volume = "793",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Measuring ZnO nanoparticles available concentrations in contaminated soils using the diffusive gradient in thin-films (DGT) technique

AU - Pouran, H.

AU - Alkasbi, M.

AU - Lahive, E.

AU - Lofts, S.

AU - Zhang, H.

PY - 2021/11/1

Y1 - 2021/11/1

N2 - A major gap in understanding nanomaterials behaviour in the environment is a lack of reliable tools to measure their available concentrations. In this research we use diffusive gradients in thin films (DGT) for measuring concentrations of zinc oxide nanoparticles (ZNO NPs) in soils. Available nanoparticle concentrations were assessed by difference, using paired DGT devices with and without 1000 MWCO dialysis membranes to exclude NPs. We used ZnO because its toxic effects are accelerated through dissolution to Zn2+. Our test soils had different pH and organic matter (OM) contents, which both affect the dissolution rate of ZnO NPs. Woburn (pH ≈ 6.9, OM ≈ 1.8%) and Lufa (pH ≈ 5.9, OM ≈ 4.2%) soils were spiked to a single concentration of 500 mg of ZnO NPs per 1 kg of soil and the available concentrations of ZnO NPs and dissolved zinc were evaluated in 3, 7, 14, 21, 28, 60, 90, 120, 150 and 180 day intervals using DGT. The results showed that the dissolution of ZnO NPs, as well as the available concentrations of both dissolved and nanoparticulate Zn, was much higher in Lufa soil than in Woburn. This work demonstrates that DGT can be used as a simple yet reliable technique for determining concentrations of ZnO NPs in soils and probing its dissolution kinetics. © 2018 Elsevier B.V.

AB - A major gap in understanding nanomaterials behaviour in the environment is a lack of reliable tools to measure their available concentrations. In this research we use diffusive gradients in thin films (DGT) for measuring concentrations of zinc oxide nanoparticles (ZNO NPs) in soils. Available nanoparticle concentrations were assessed by difference, using paired DGT devices with and without 1000 MWCO dialysis membranes to exclude NPs. We used ZnO because its toxic effects are accelerated through dissolution to Zn2+. Our test soils had different pH and organic matter (OM) contents, which both affect the dissolution rate of ZnO NPs. Woburn (pH ≈ 6.9, OM ≈ 1.8%) and Lufa (pH ≈ 5.9, OM ≈ 4.2%) soils were spiked to a single concentration of 500 mg of ZnO NPs per 1 kg of soil and the available concentrations of ZnO NPs and dissolved zinc were evaluated in 3, 7, 14, 21, 28, 60, 90, 120, 150 and 180 day intervals using DGT. The results showed that the dissolution of ZnO NPs, as well as the available concentrations of both dissolved and nanoparticulate Zn, was much higher in Lufa soil than in Woburn. This work demonstrates that DGT can be used as a simple yet reliable technique for determining concentrations of ZnO NPs in soils and probing its dissolution kinetics. © 2018 Elsevier B.V.

KW - Chelex

KW - Contaminated soils

KW - DGT

KW - Dialysis membrane

KW - Diffusive gradients in thin-films

KW - Nanoparticles

KW - Zinc oxide dissolution

KW - ZnO NPs

KW - Dialysis

KW - Diffusion in solids

KW - Dissolution

KW - Oxide films

KW - Soil pollution

KW - Soils

KW - Thin films

KW - ZnO nanoparticles

KW - Diffusive gradients in thin film techniques

KW - Diffusive gradients in thin films

KW - Organics

KW - ZnO

KW - ZnO NP

KW - II-VI semiconductors

KW - concentration (composition)

KW - contaminated land

KW - diffusion

KW - dissolution

KW - membrane

KW - nanoparticle

KW - oxide

KW - reaction kinetics

KW - soil pollution

KW - zinc

U2 - 10.1016/j.scitotenv.2021.148654

DO - 10.1016/j.scitotenv.2021.148654

M3 - Journal article

VL - 793

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 148654

ER -