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Jin SR, Cho BG, Mun SB, Kim SJ, Cho CW. Investigation on the adsorption affinity of organic micropollutants on seaweed and its QSAR study. ENVIRONMENTAL RESEARCH 2023:116349. [PMID: 37290627 DOI: 10.1016/j.envres.2023.116349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/19/2023] [Accepted: 06/06/2023] [Indexed: 06/10/2023]
Abstract
Seaweed, one of the most abundant biomaterials, can be used as a biosorbent to remove organic micropollutants. In order to effectively use seaweed to remove a variety of micropollutants, it is vital to rapidly estimate the adsorption affinity according to the types of micropollutants. Thus, the isothermal adsorption affinities of 31 organic micropollutants in neutral or ionic form on seaweed were measured, and a predictive model using quantitative structure-adsorption relationship (QSAR) modeling was developed. As a result, it was found that the types of micropollutants had a significant effect on the adsorption of seaweed, as expected, and QSAR modeling with a predictability (R2) of 0.854 and a standard error (SE) of 0.27 log units using a training set could be developed. The model's predictability was internally and externally validated using leave-one-out cross validation and a test set. Its predictability for the external validation set was R2 = 0.864, SE = 0.171 log units. Using the developed model, we identified the most important driving forces of the adsorption at the molecular level: Coulomb interaction of the anion, molecular volume, and H-bond acceptor and donor, which significantly affect the basic momentum of molecules on the surface of seaweed. Moreover, in silico calculated descriptors were applied to the prediction, and the results revealed reasonable predictability (R2 of 0.944 and SE of 0.17 log units). Our approach provides an understanding of the adsorption process of seaweed for organic micropollutants and an efficient prediction method to estimate the adsorption affinities of seaweed and micropollutants in neutral and ionic forms.
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Affiliation(s)
- Se-Ra Jin
- Department of Bioenergy Science and Technology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea; Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Bo-Gyeon Cho
- Department of Bioenergy Science and Technology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea; Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Se-Been Mun
- Department of Bioenergy Science and Technology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea; Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Soo-Jung Kim
- Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea.
| | - Chul-Woong Cho
- Department of Bioenergy Science and Technology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea; Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea.
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Cho BG, Lee JH, Kim HI, Mun SB, Jin SR, Kim DG, Cho CW, Yun YS. Modeling for the estimating the adsorption property of fruit waste-based biosorbents for the removal of organic micropollutants. ENVIRONMENTAL RESEARCH 2023; 225:115593. [PMID: 36863649 DOI: 10.1016/j.envres.2023.115593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The enormous production of fruit waste and the generation of countless organic micropollutants are serious environmental problems. To solve the problems, the biowastes, i.e., orange, mandarin, and banana peels, were used as biosorbents to remove the organic pollutants. In this application, the difficult challenge is knowing the degree of adsorption affinity of biomass for each type of micropollutant. However, since there are numerous micropollutants, it requires enormous material consumption and labor to physically estimate the adsorbability of biomass. To address this limitation, quantitative structure-adsorption relationship (QSAR) models for the adsorption assessment were established. In this process, the surface properties of each adsorbent were measured with instrumental analyzers, their adsorption affinity values for several organic micropollutants were determined through isotherm experiments, and QSAR models for each adsorbent were developed. The results showed that the tested adsorbents had significant adsorption affinity for cationic and neutral micropollutants, while the anionic one had low adsorption. As a result of the modeling, it was found that the adsorption could be predicted for a modeling set with an R2 of 0.90-0.915, and the models were validated via the prediction of a test set that was not included in the modeling set. Also, using the models, the adsorption mechanisms were identified. It is speculated that these developed models can be used to rapidly estimate adsorption affinity values for other micropollutants.
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Affiliation(s)
- Bo-Gyeon Cho
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Jae-Ho Lee
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Hye-In Kim
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, South Korea
| | - Se-Been Mun
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Se-Ra Jin
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea
| | - Dae Geun Kim
- LED Agri-bio Fusion Technology Research Center, Jeonbuk National University, 79 Gobong-ro, Iksan-si, Jeollabuk-do, 54596, Republic of Korea
| | - Chul-Woong Cho
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186, Gwangju, Republic of Korea; Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, South Korea.
| | - Yeoung-Sang Yun
- School of Chemical Engineering, Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, Jeonju, Jeonbuk, 561-756, South Korea.
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Poole CF. Selectivity evaluation of extraction systems. J Chromatogr A 2023; 1695:463939. [PMID: 36996617 DOI: 10.1016/j.chroma.2023.463939] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
Extraction is the most common sample preparation technique prior to chromatographic analysis for samples which are too complex, too dilute, or contain matrix components incompatible with the further use of the separation system or interfere in the detection step. The most important extraction techniques are biphasic systems involving the transfer of target compounds from the sample to a different phase ideally accompanied by no more than a tolerable burden of co-extracted matrix compounds. The solvation parameter model affords a general framework to characterize biphasic extraction systems in terms of their relative capability for solute-phase intermolecular interactions (dispersion, dipole-type, hydrogen bonding) and within phase solvent-solvent interactions for cavity formation (cohesion). The approach is general and allows the comparison of liquid and solid extraction phases using the same terms and is used to explain the features important for the selective enrichment of target compounds by a specific extraction phase using solvent extraction, liquid-liquid extraction, and solid-phase extraction for samples in a gas, liquid, or solid phase. Hierarchical cluster analysis with the system constants of the solvation parameter model as variables facilitates the selection of solvents for extraction, the identification of liquid-liquid distribution systems with non-redundant selectivity, and evaluation of different approaches using liquids and solids for the isolation of target compounds from different matrices.
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Recent advances for estimating environmental properties for small molecules from chromatographic measurements and the solvation parameter model. J Chromatogr A 2023; 1687:463682. [PMID: 36502643 DOI: 10.1016/j.chroma.2022.463682] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/24/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
The transfer of neutral compounds between immiscible phases in chromatographic or environmental systems can be described by six solute properties (solute descriptors) using the solvation parameter model. The solute descriptors are size (McGowan's characteristic volume), V, excess molar refraction, E, dipolarity/polarizability, S, hydrogen-bond acidity and basicity, A and B, and the gas-liquid partition constant on n-hexadecane at 298.15 K, L. V and E for liquids are accessible by calculation but the other descriptors and E for solids are determined experimentally by chromatographic, liquid-liquid partition, and solubility measurements. These solute descriptors are available for several thousand compounds in the Abraham solute descriptor databases and for several hundred compounds in the WSU experimental solute descriptor database. In the first part of this review, we highlight features important in defining each descriptor, their experimental determination, compare descriptor quality for the two organized descriptor databases, and methods for estimating Abraham solute descriptors. In the second part we focus on recent applications of the solvation parameter model to characterize environmental systems and its use for the identification of surrogate chromatographic models for estimating environmental properties.
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Musarurwa H, Tavengwa NT. Advances in the application of chitosan-based metal organic frameworks as adsorbents for environmental remediation. Carbohydr Polym 2022; 283:119153. [DOI: 10.1016/j.carbpol.2022.119153] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/15/2022] [Accepted: 01/16/2022] [Indexed: 12/22/2022]
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Cho BG, Mun SB, Lim CR, Kang SB, Cho CW, Yun YS. Adsorption modeling of microcrystalline cellulose for pharmaceutical-based micropollutants. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:128087. [PMID: 34923381 DOI: 10.1016/j.jhazmat.2021.128087] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Cellulose can be considered as a raw material for the production of filters and adsorbents for the removal of micropollutants, particularly in pharmaceutical-based products. To study its applications, it is important to estimate the adsorptive interaction of cellulose with the targeted chemicals, and develop predictive models for the expandable estimation into various types of micropollutants. Therefore, the adsorption affinity between cellulose and micropollutants was measured through isotherm experiments, and a quantitative structure-adsorption relationship model was developed using the linear free energy relationship (LFER) equation. The results indicate that microcrystalline cellulose has a remarkably high adsorption affinity with cationic micropollutants. Moreover, it has interactions with neutral and anionic micropollutants, although they have relatively lower affinities than those of cations. Through a modeling study, an LFER model - comprising of excess molar refraction, polar interaction, molecular volume, and charge-related terms - was developed, which could be used to predict the adsorption affinity values with an R2 of 0.895. To verify the robustness and predictability of the model, internal and external validation studies were performed. The results proved that the model was reasonable and acceptable, with an SE = 0.207 log unit.
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Affiliation(s)
- Bo-Gyeon Cho
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186 Gwangju, South Korea
| | - Se-Been Mun
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186 Gwangju, South Korea; Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, South Korea
| | - Che-Ryong Lim
- School of Chemical Engineering, Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, Jeonju, Jeonbuk 561-756, South Korea
| | - Su Bin Kang
- Department of Ocean System Engineering, College of Marine Science, Gyeoungsang National University, Tongyeong 53064, South Korea
| | - Chul-Woong Cho
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Yongbong-ro 77, Buk-gu, 61186 Gwangju, South Korea; Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, South Korea.
| | - Yeoung-Sang Yun
- School of Chemical Engineering, Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, Jeonju, Jeonbuk 561-756, South Korea.
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Choi JW, Cho CW, Yun YS. Organic acid-based linear free energy relationship models for green leaching of strategic metals from spent lithium-ion batteries and improvement of leaching performance. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127214. [PMID: 34551369 DOI: 10.1016/j.jhazmat.2021.127214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 09/03/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Water-soluble organic acids (e.g., acetic acid, acrylic acid, and ascorbic acid), as green leachants, have been applied to leach strategic metals (Ni, Li, Mn, and Co) from spent lithium-ion batteries (LIBs). Organic acid-based linear free energy relationship models were developed and simulated to predict the feasibility of the leaching efficiency for each of the strategic metals based on in silico calculated descriptors. The developed models, with accuracy (R2) of 0.747-0.831, reveal that hydrogen bond acidity of organic acids promotes the leaching efficiency, whereas molecular volume or excess molar refraction inhibits the efficiency. Furthermore, toxicity (lethal dose 50%) of organic acids was discussed along with the predicted leaching efficiency to explore more green and efficient organic acids. Considering both toxicity and leaching efficiency, citric acid was selected as a green and efficient leachant. To more improve the leaching performance (rate and efficiency) of citric acid, glucose as a green reductant and microwave treatment were additionally applied. Under the selected conditions, the leaching efficiencies after 1 h for Ni, Li, Mn, and Co were enhanced up to 98.3%, 99.1%, 98.7%, and 97.7%, respectively.
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Affiliation(s)
- Jong-Won Choi
- Environmental Biotechnology National Research Laboratory, School of Chemical Engineering Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, 54896 Jeonju, Republic of Korea
| | - Chul-Woong Cho
- Department of Bioenergy, Science, and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 6186, Republic of Korea.
| | - Yeoung-Sang Yun
- Environmental Biotechnology National Research Laboratory, School of Chemical Engineering Jeonbuk National University, Beakje-dearo 567, Deokjin-gu, 54896 Jeonju, Republic of Korea.
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Isaeva VI, Vedenyapina MD, Kurmysheva AY, Weichgrebe D, Nair RR, Nguyen NPT, Kustov LM. Modern Carbon-Based Materials for Adsorptive Removal of Organic and Inorganic Pollutants from Water and Wastewater. Molecules 2021; 26:6628. [PMID: 34771037 PMCID: PMC8587771 DOI: 10.3390/molecules26216628] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 11/20/2022] Open
Abstract
Currently, a serious threat for living organisms and human life in particular, is water contamination with persistent organic and inorganic pollutants. To date, several techniques have been adopted to remove/treat organics and toxic contaminants. Adsorption is one of the most effective and economical methods for this purpose. Generally, porous materials are considered as appropriate adsorbents for water purification. Conventional adsorbents such as activated carbons have a limited possibility of surface modification (texture and functionality), and their adsorption capacity is difficult to control. Therefore, despite the significant progress achieved in the development of the systems for water remediation, there is still a need for novel adsorptive materials with tunable functional characteristics. This review addresses the new trends in the development of new adsorbent materials. Herein, modern carbon-based materials, such as graphene, oxidized carbon, carbon nanotubes, biomass-derived carbonaceous matrices-biochars as well as their composites with metal-organic frameworks (MOFs) and MOF-derived highly-ordered carbons are considered as advanced adsorbents for removal of hazardous organics from drinking water, process water, and leachate. The review is focused on the preparation and modification of these next-generation carbon-based adsorbents and analysis of their adsorption performance including possible adsorption mechanisms. Simultaneously, some weak points of modern carbon-based adsorbents are analyzed as well as the routes to conquer them. For instance, for removal of large quantities of pollutants, the combination of adsorption and other methods, like sedimentation may be recommended. A number of efficient strategies for further enhancing the adsorption performance of the carbon-based adsorbents, in particular, integrating approaches and further rational functionalization, including composing these adsorbents (of two or even three types) can be recommended. The cost reduction and efficient regeneration must also be in the focus of future research endeavors. The targeted optimization of the discussed carbon-based adsorbents associated with detailed studies of the adsorption process, especially, for multicomponent adsorbate solution, will pave a bright avenue for efficient water remediation.
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Affiliation(s)
- Vera I. Isaeva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Marina D. Vedenyapina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Alexandra Yu. Kurmysheva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Dirk Weichgrebe
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Rahul Ramesh Nair
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Ngoc Phuong Thanh Nguyen
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Leonid M. Kustov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
- Chemistry Department, Moscow State University, Leninskie Gory 1, Bldg. 3, 119992 Moscow, Russia
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Ersan G. Adsorption modeling of organic compounds (OCs) by carbon nanotubes (CNTs): role of OC and CNT properties on the linear solvation energy relationship. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1635-1647. [PMID: 34662302 DOI: 10.2166/wst.2021.346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study evaluated a comprehensive database for the adsorption of polar and nonpolar organic compounds (OCs) by carbon nanotubes (CNTs) and to use the linear solvation energy relationship (LSER) technique for developing predictive adsorption models of OCs by multi-walled carbon nanotubes (MWCNTs) and single-walled carbon nanotubes (SWCNTs). The results showed that coefficient of determinations (R2) values for all compounds are higher variability in the 200 g/mol molecular weight cutoff (74-99%). When the molecular weight cutoff of all OCs is higher than 200 g/mol, the trend of their R2 values is decreased (less than 70%). Among all adsorbate descriptor coefficients, V and B terms are the most significant descriptors (p-values ≤ 0.05) in LSER equations for adsorption of low molecular weight polar and nonpolar OCs by both CNTs. Besides, KOW normalization of all Kd values did not have significant impact on the regression of the LSER model, indicating that hydrophobic interactions are not sole mechanism for the adsorption of OCs on CNTs. Lastly, SWCNTs exhibited higher polar OCs uptake than MWCNTs, which was attributed to more polar surface of SWCNTs as suggested by its high oxygen content (%10).
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Affiliation(s)
- Gamze Ersan
- Department of Environmental Engineering and Earth Sciences, Clemson University, Anderson, SC 29625, USA E-mail:
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The Potential for PE Microplastics to Affect the Removal of Carbamazepine Medical Pollutants from Aqueous Environments by Multiwalled Carbon Nanotubes. TOXICS 2021; 9:toxics9060139. [PMID: 34204690 PMCID: PMC8231597 DOI: 10.3390/toxics9060139] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 11/17/2022]
Abstract
Microplastics are ubiquitous in aquatic environments and interact with other kinds of pollutants, which affects the migration, transformation, and fate of those other pollutants. In this study, we employ carbamazepine (CBZ) as the contaminant to study the influence of polyethylene (PE) microplastics on the adsorption of CBZ pollutants by multiwalled carbon nanotubes (MCNTs) in aqueous solution. The adsorption capacity of CBZ by MCNTs in the presence of PE microplastics was obviously lower than that by MCNTs alone. The influencing factors, including the dose of microplastics, pH, and CBZ solution concentration, on the adsorption of CBZ by MCNTs and MCNTs-PE were thoroughly investigated. The adsorption rate of CBZ by MCNTs decreased from 97.4% to 90.6% as the PE microplastics dose increased from 2 g/L to 20 g/L. This decrease occurred because the MCNTs were coated on the surface of the PE microplastics, which further decreased the effective adsorption area of the MCNTs. This research provides a framework for revealing the effect of microplastics on the adsorption of pollutants by carbon materials in aqueous environments.
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