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

Chemical Engineering Journal 2024 14 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

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

Summary

Researchers developed ultra-thin magnetic iron oxide nanodiscs for removing micro- and nanoplastics from water. The study found that these nanodiscs achieved high adsorption capacity through electrostatic and magnetic forces, and maintained over 90% removal efficiency after five reuse cycles, offering a cost-effective approach for treating plastic-contaminated wastewater.

Study Type Environmental

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.

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