Recent advances and factors affecting the adsorption of nano/microplastics by magnetic biochar

Khurram Shahzad; Areej Hasan; Syed Kumail Hussain Naqvi; Saima Parveen; Abrar Hussain; Kyong-Cheol Ko; Sang Hyun Park

doi:10.1016/j.chemosphere.2024.143936

Recent advances and factors affecting the adsorption of nano/microplastics by magnetic biochar

Chemosphere. 2024 Dec 14:370:143936. doi: 10.1016/j.chemosphere.2024.143936. Online ahead of print.

Authors

Khurram Shahzad¹, Areej Hasan², Syed Kumail Hussain Naqvi³, Saima Parveen⁴, Abrar Hussain⁵, Kyong-Cheol Ko⁶, Sang Hyun Park⁷

Affiliations

¹ Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea; Radiation Science, University of Science and Technology, Daejeon, 34113, Republic of Korea. Electronic address: [email protected].
² Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan. Electronic address: [email protected].
³ Graduate School of Integrated Energy-AI, Jeonbuk National University, Jeonju, 54896, Republic of Korea. Electronic address: [email protected].
⁴ Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan. Electronic address: [email protected].
⁵ Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea; Radiation Science, University of Science and Technology, Daejeon, 34113, Republic of Korea. Electronic address: [email protected].
⁶ Korea Preclinical Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34113, Republic of Korea. Electronic address: [email protected].
⁷ Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea; Radiation Science, University of Science and Technology, Daejeon, 34113, Republic of Korea. Electronic address: [email protected].

PMID: 39667528
DOI: 10.1016/j.chemosphere.2024.143936

Abstract

The increase in nano/microplastics (NPs/MPs) from various everyday products entering aquatic environments highlights the urgent need to develop mitigation strategies. Biochar (BC), known for its excellent adsorption capabilities, can effectively target various harmful organic and inorganic pollutants. However, traditional methods involving powdered BC necessitate centrifugation and filtration, which can lead to the desorption of pollutants and subsequent secondary pollution. Magnetic biochar (MBC) offers a solution that facilitates straightforward and rapid separation from water through magnetic techniques. This review provides the latest insights into the progress made in MBC applications for the adsorption of NPs/MPs. This review further discusses how external factors such as pH, ionic strength, temperature, competing ions, dissolved organic matter, aging time, and particle size impact the MBC adsorption efficiency of MPs. The use of machine learning (ML) for optimizing the design and properties of BC materials is also briefly addressed. Finally, this review addresses existing challenges and future research directions aimed at improving the large-scale application of MBC for NPs/MPs removal.

Keywords: Adsorption; External factors; Machine learning; Magnetic biochar; Microplastics; Physical interactions.

Publication types

Review