Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano

Yitong Cao; C. I. Sathish; Zhixuan Li; Muhammad Ibrar Ahmed; Vibin Perumalsamy; Chaojie Cao; Chenxi Yu; Binodhya Wijerathne; Adrew Fleming; Liang Qiao; Shaobin Wang; Jiabao Yi

doi:10.1016/j.cej.2024.154610

Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano

Yitong Cao
, C. I. Sathish^*
, Zhixuan Li
, Muhammad Ibrar Ahmed
, Vibin Perumalsamy
, Chaojie Cao
, Chenxi Yu
, Binodhya Wijerathne
, Adrew Fleming
, Liang Qiao
, Shaobin Wang
, Jiabao Yi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The escalation of microplastics/nanoplastics (MPs/NPs) contamination in aqueous systems has ignited considerable concern. Magnetic separation has emerged as a promising remedy for the removal of these pollutants, owing to its notable removal efficiency, cost-effectiveness, and environmentally friendly attributes. This study presents the utilization of ultra-thin magnetic Fe₃O₄ nanodiscs (NDs) for the adsorption and separation of MPs/NPs. Investigations revealed that these NDs could effectively adsorb/remove MPs/NPs across a spectrum ranging from micro- to nano-scale, exhibiting a notable adsorption capacity of 188.4 mg g⁻¹. Mechanistically, MPs/NPs adsorption was driven by both electrostatic and magnetic forces originating from the vortex domain of NDs, which can be well described by pseudo-first-order and Sips models. Furthermore, the NDs exhibited outstanding reusability, maintaining over 90 % removal efficiency even after undergoing five cycles. This research introduces a cost-effective method for the separation of MPs/NPs, representing a significant stride in wastewater treatment methodologies.

Original language	English
Article number	154610
Journal	Chemical Engineering Journal
Volume	497
DOIs	https://doi.org/10.1016/j.cej.2024.154610
State	Published - 1 Oct 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Keywords

Magnetic nanomaterials
Magnetic separation
Microplastics
Plastic pollution

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.cej.2024.154610

Cite this

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title = "Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano",

abstract = "The escalation of microplastics/nanoplastics (MPs/NPs) contamination in aqueous systems has ignited considerable concern. Magnetic separation has emerged as a promising remedy for the removal of these pollutants, owing to its notable removal efficiency, cost-effectiveness, and environmentally friendly attributes. This study presents the utilization of ultra-thin magnetic Fe3O4 nanodiscs (NDs) for the adsorption and separation of MPs/NPs. Investigations revealed that these NDs could effectively adsorb/remove MPs/NPs across a spectrum ranging from micro- to nano-scale, exhibiting a notable adsorption capacity of 188.4 mg g−1. Mechanistically, MPs/NPs adsorption was driven by both electrostatic and magnetic forces originating from the vortex domain of NDs, which can be well described by pseudo-first-order and Sips models. Furthermore, the NDs exhibited outstanding reusability, maintaining over 90 \% removal efficiency even after undergoing five cycles. This research introduces a cost-effective method for the separation of MPs/NPs, representing a significant stride in wastewater treatment methodologies.",

keywords = "Magnetic nanomaterials, Magnetic separation, Microplastics, Plastic pollution",

author = "Yitong Cao and Sathish, \{C. I.\} and Zhixuan Li and \{Ibrar Ahmed\}, Muhammad and Vibin Perumalsamy and Chaojie Cao and Chenxi Yu and Binodhya Wijerathne and Adrew Fleming and Liang Qiao and Shaobin Wang and Jiabao Yi",

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year = "2024",

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doi = "10.1016/j.cej.2024.154610",

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TY - JOUR

T1 - Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs

T2 - From micro to nano

AU - Cao, Yitong

AU - Sathish, C. I.

AU - Li, Zhixuan

AU - Ibrar Ahmed, Muhammad

AU - Perumalsamy, Vibin

AU - Cao, Chaojie

AU - Yu, Chenxi

AU - Wijerathne, Binodhya

AU - Fleming, Adrew

AU - Qiao, Liang

AU - Wang, Shaobin

AU - Yi, Jiabao

PY - 2024/10/1

Y1 - 2024/10/1

N2 - The escalation of microplastics/nanoplastics (MPs/NPs) contamination in aqueous systems has ignited considerable concern. Magnetic separation has emerged as a promising remedy for the removal of these pollutants, owing to its notable removal efficiency, cost-effectiveness, and environmentally friendly attributes. This study presents the utilization of ultra-thin magnetic Fe3O4 nanodiscs (NDs) for the adsorption and separation of MPs/NPs. Investigations revealed that these NDs could effectively adsorb/remove MPs/NPs across a spectrum ranging from micro- to nano-scale, exhibiting a notable adsorption capacity of 188.4 mg g−1. Mechanistically, MPs/NPs adsorption was driven by both electrostatic and magnetic forces originating from the vortex domain of NDs, which can be well described by pseudo-first-order and Sips models. Furthermore, the NDs exhibited outstanding reusability, maintaining over 90 % removal efficiency even after undergoing five cycles. This research introduces a cost-effective method for the separation of MPs/NPs, representing a significant stride in wastewater treatment methodologies.

AB - The escalation of microplastics/nanoplastics (MPs/NPs) contamination in aqueous systems has ignited considerable concern. Magnetic separation has emerged as a promising remedy for the removal of these pollutants, owing to its notable removal efficiency, cost-effectiveness, and environmentally friendly attributes. This study presents the utilization of ultra-thin magnetic Fe3O4 nanodiscs (NDs) for the adsorption and separation of MPs/NPs. Investigations revealed that these NDs could effectively adsorb/remove MPs/NPs across a spectrum ranging from micro- to nano-scale, exhibiting a notable adsorption capacity of 188.4 mg g−1. Mechanistically, MPs/NPs adsorption was driven by both electrostatic and magnetic forces originating from the vortex domain of NDs, which can be well described by pseudo-first-order and Sips models. Furthermore, the NDs exhibited outstanding reusability, maintaining over 90 % removal efficiency even after undergoing five cycles. This research introduces a cost-effective method for the separation of MPs/NPs, representing a significant stride in wastewater treatment methodologies.

KW - Magnetic nanomaterials

KW - Magnetic separation

KW - Microplastics

KW - Plastic pollution

UR - https://www.scopus.com/pages/publications/85200709154

U2 - 10.1016/j.cej.2024.154610

DO - 10.1016/j.cej.2024.154610

M3 - Article

AN - SCOPUS:85200709154

SN - 1385-8947

VL - 497

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 154610

ER -

Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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