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  1. Article ; Online: Self-motivated photoaging of microplastics by biochar-dissolved organic matter under different pyrolysis temperatures.

    Guo, Saisai / Lyu, Honghong / Liu, Weitao / He, Yuhe / Tang, Jingchun

    The Science of the total environment

    2024  Volume 915, Page(s) 170043

    Abstract: Dissolved organic matter (DOM) released from biochar (BDOM) can interact with microplastics (MPs) in the environment, inevitably affecting their environmental behaviour. Information regarding the influence of BDOM on MPs during photoaging and associated ... ...

    Abstract Dissolved organic matter (DOM) released from biochar (BDOM) can interact with microplastics (MPs) in the environment, inevitably affecting their environmental behaviour. Information regarding the influence of BDOM on MPs during photoaging and associated variations in the MP aging mechanism remains unclear. This study evaluated the effect of BDOM on the aging of polystyrene (PS) MPs. The results showed that among three pyrolysis temperatures, low-temperature BDOM significantly enhanced the photoaging process of PS MPs, with the smallest average particle size and highest carbonyl index value after 15 days of aging under light conditions. The DOM level decreased after 5 days, increased after 5-10 days, and stabilised after 15 d. BDOM accelerates PS MPs aging, leading to more DOM released from PS, which can be transformed into
    Language English
    Publishing date 2024-01-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2024.170043
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Innovations in chemical degradation technologies for the removal of micro/nano-plastics in water: A comprehensive review.

    Guo, Saisai / Feng, Di / Li, Yu / Liu, Linan / Tang, Jingchun

    Ecotoxicology and environmental safety

    2024  Volume 271, Page(s) 115979

    Abstract: Micro/nanoplastics (M/NPs) in water have raised global concern due to their potential environmental risks. To reestablish a M/NPs free world, enormous attempts have been made toward employing chemical technologies for their removal in water. This review ... ...

    Abstract Micro/nanoplastics (M/NPs) in water have raised global concern due to their potential environmental risks. To reestablish a M/NPs free world, enormous attempts have been made toward employing chemical technologies for their removal in water. This review comprehensively summarizes the advances in chemical degradation approaches for M/NPs elimination. It details and discusses promising techniques, including photo-based technologies, Fenton-based reaction, electrochemical oxidation, and novel micro/nanomotors approaches. Subsequently, critical influence factors, such as properties of M/NPs and operating factors, are analyzed in this review specifically. Finally, it concludes by addressing the current challenges and future perspectives in chemical degradation. This review will provide guidance for scientists to further explore novel strategies and develop feasible chemical methods for the improved control and remediation of M/NPs in the future.
    MeSH term(s) Plastics ; Microplastics ; Water ; Environmental Restoration and Remediation ; Water Pollutants, Chemical/analysis
    Chemical Substances Plastics ; Microplastics ; Water (059QF0KO0R) ; Water Pollutants, Chemical
    Language English
    Publishing date 2024-01-19
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2024.115979
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  3. Article ; Online: Unveiling the effect of different dissolved organic matter (DOM) on catalytic dechlorination of nFe/Ni particles: Corrosion and passivation effect.

    Ri, Cholnam / Kim, Munchol / Mun, Hyokchol / Liu, Linan / Tang, Jingchun

    Journal of hazardous materials

    2024  Volume 469, Page(s) 133901

    Abstract: Dissolved organic matter (DOM), which is ubiquitously distributed in groundwater, has a crucial role in the fate and reactivity of iron materials. However, there is a lack of direct evidence on how different DOMs interact with nFe/Ni in promoting or ... ...

    Abstract Dissolved organic matter (DOM), which is ubiquitously distributed in groundwater, has a crucial role in the fate and reactivity of iron materials. However, there is a lack of direct evidence on how different DOMs interact with nFe/Ni in promoting or inhibiting the dechlorination efficiency of chlorinated aromatic contaminants. By comparing humic acid (HA), fulvic acid (FA), and biochar-derived dissolved organic matter (BDOM) at different pyrolysis temperatures, we first demonstrated that the dechlorination effect of nFe/Ni on 2,4-dichlorophenol (2,4-DCP) depended on the nature of DOMs and their adsorption on nFe/Ni. HA showed an enhancing effect on the dechlorination of 2,4-DCP by nFe/Ni, while the inhibition effect of other DOMs resulted in the following dechlorination order: BDOM300 ≈FA>BDOM700 ≈BDOM500. The C2 component with higher aromaticity and molecular weight promoted the corrosion of nFe/Ni and the production of reactive hydrogen atoms (H*). The effects of different DOMs on nFe/Ni include that (1) HA accelerates the corrosion and H* production of nFe/Ni, (2) FA and BDOM300 enhance the corrosion but inhibit H* production, and (3) Both nFe/Ni corrosion and H* formation are suppressed by BDOM500/BDOM700. Therefore, this study will provide a reference for understanding the nature of DOM-nFe/Ni interaction and improving the catalytic activity of nFe/Ni when different DOMs coexist in practical applications.
    Language English
    Publishing date 2024-02-27
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2024.133901
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Polystyrene micro and nanoplastics attenuated the bioavailability and toxic effects of Perfluorooctane sulfonate (PFOS) on soybean (Glycine max) sprouts

    Liu, Yaxuan / Jin, Tianyue / Wang, Lan / Tang, Jingchun

    Journal of Hazardous Materials. 2023 Apr. 15, v. 448, p. 130911

    2023  , Page(s) 130911

    Abstract: Microplastics and nanoplastics (MNPs) have attracted much attention since their wide distribution in the environment and organisms. MNPs in the environment adsorb other organic pollutants, such as Perfluorooctane sulfonate (PFOS), and cause combined ... ...

    Abstract Microplastics and nanoplastics (MNPs) have attracted much attention since their wide distribution in the environment and organisms. MNPs in the environment adsorb other organic pollutants, such as Perfluorooctane sulfonate (PFOS), and cause combined effects. However, the impact of MNPs and PFOS in agricultural hydroponic systems is unclear. This study investigated the combined effects of polystyrene (PS) MNPs and PFOS on soybean (Glycine max) sprouts, which are common hydroponic vegetable. Results demonstrated that the adsorption of PFOS on PS particles transformed free PFOS into adsorbed state and reduced its bioavailability and potential migration, thus attenuating acute toxic effects such as oxidative stress. TEM and Laser confocal microscope images showed that PS nanoparticles uptake in sprout tissue was enhanced by the adsorption of PFOS which is because of changes of the particle surface properties. Transcriptome analysis showed that PS and PFOS exposure promoted soybean sprouts to adapt to environmental stress and MARK pathway might play an important role in recognition of microplastics coated by PFOS and response to enhancing plant resistance. This study provided the first evaluation about the effect of adsorption between PS particles and PFOS on their phytotoxicity and bioavailability, in order to provide new ideas for risk assessment.
    Keywords Glycine max ; adsorption ; bioavailability ; hydroponics ; nanoplastics ; oxidative stress ; perfluorooctane sulfonic acid ; phytotoxicity ; polystyrenes ; risk assessment ; soybeans ; transcriptomics ; vegetables ; Polystyrene microplastics ; PFOS ; Soybean
    Language English
    Dates of publication 2023-0203
    Size p. 130911
    Publishing place Elsevier B.V.
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.130911
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  5. Article ; Online: Polystyrene micro and nanoplastics attenuated the bioavailability and toxic effects of Perfluorooctane sulfonate (PFOS) on soybean (Glycine max) sprouts.

    Liu, Yaxuan / Jin, Tianyue / Wang, Lan / Tang, Jingchun

    Journal of hazardous materials

    2023  Volume 448, Page(s) 130911

    Abstract: Microplastics and nanoplastics (MNPs) have attracted much attention since their wide distribution in the environment and organisms. MNPs in the environment adsorb other organic pollutants, such as Perfluorooctane sulfonate (PFOS), and cause combined ... ...

    Abstract Microplastics and nanoplastics (MNPs) have attracted much attention since their wide distribution in the environment and organisms. MNPs in the environment adsorb other organic pollutants, such as Perfluorooctane sulfonate (PFOS), and cause combined effects. However, the impact of MNPs and PFOS in agricultural hydroponic systems is unclear. This study investigated the combined effects of polystyrene (PS) MNPs and PFOS on soybean (Glycine max) sprouts, which are common hydroponic vegetable. Results demonstrated that the adsorption of PFOS on PS particles transformed free PFOS into adsorbed state and reduced its bioavailability and potential migration, thus attenuating acute toxic effects such as oxidative stress. TEM and Laser confocal microscope images showed that PS nanoparticles uptake in sprout tissue was enhanced by the adsorption of PFOS which is because of changes of the particle surface properties. Transcriptome analysis showed that PS and PFOS exposure promoted soybean sprouts to adapt to environmental stress and MARK pathway might play an important role in recognition of microplastics coated by PFOS and response to enhancing plant resistance. This study provided the first evaluation about the effect of adsorption between PS particles and PFOS on their phytotoxicity and bioavailability, in order to provide new ideas for risk assessment.
    MeSH term(s) Biological Availability ; Glycine max ; Microplastics ; Plastics ; Polystyrenes
    Chemical Substances perfluorooctane (6P60ZBK0QL) ; Microplastics ; Plastics ; Polystyrenes ; perfluorooctane sulfonic acid (9H2MAI21CL)
    Language English
    Publishing date 2023-02-03
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.130911
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Nitrogen-doped biochar (N-doped BC) and iron/nitrogen co-doped biochar (Fe/N co-doped BC) for removal of refractory organic pollutants.

    Ahmad, Shakeel / Liu, Linan / Zhang, Shicheng / Tang, Jingchun

    Journal of hazardous materials

    2023  Volume 446, Page(s) 130727

    Abstract: The presence of refractory organic pollutants (ROPs) in the ecosystem is a serious concern because of their impact on environmental constituents as well as their known or suspected ecotoxicity and adverse health effects. According to previous studies, ... ...

    Abstract The presence of refractory organic pollutants (ROPs) in the ecosystem is a serious concern because of their impact on environmental constituents as well as their known or suspected ecotoxicity and adverse health effects. According to previous studies, carbonaceous materials, such as biochar (BC), have been widely used to remove pollutants from ecosystems owing to their desirable features, such as relative stability, tunable porosity, and abundant functionalities. Nitrogen (N)-doping and iron/nitrogen (Fe/N) co-doping can tailor BC properties and provide supplementary functional groups as well as extensive active sites on the N-doped and Fe/N co-doped BC surface, which is advantageous for interaction with and removal of ROPs. This review investigates the impact of N-doped and Fe/N co-doped BC on the removal of ROPs through adsorption, activation oxidation, and catalytic reduction due to the synergistic Fe, N, and BC features that modify the physicochemical properties, surface functional groups, and persistent free radicals of BC to aid in the degradation of ROPs. Owing to the attractive properties of N-doped and Fe/N co-doped BCs for the removal of ROPs, this review focuses and evaluates previous experimental investigations on the manufacturing (including precursors and influencing parameters during manufacturing) and characterizations of N-doped and Fe/N co-doped BCs. Additionally, the effective applications and mechanisms of N-doped and Fe/N co-doped BCs in adsorption, activation oxidation, and reductive remediation of ROPs are investigated herein. Moreover, the application of N-doped and Fe/N co-doped BC for progressive environmental remediation based on their effectiveness against co-pollutants, regeneration, stability, affordability, and future research prospects are discussed.
    MeSH term(s) Iron/chemistry ; Environmental Pollutants ; Ecosystem ; Nitrogen ; Charcoal/chemistry ; Adsorption ; Water Pollutants, Chemical/chemistry
    Chemical Substances Iron (E1UOL152H7) ; biochar ; Environmental Pollutants ; Nitrogen (N762921K75) ; Charcoal (16291-96-6) ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-01-04
    Publishing country Netherlands
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.130727
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Regulation of ARGs abundance by biofilm colonization on microplastics under selective pressure of antibiotics in river water environment.

    Zheng, Zhijie / Wang, Xiaolong / Zhang, Wenzhu / Wang, Lan / Lyu, Honghong / Tang, Jingchun

    Journal of environmental management

    2024  Volume 355, Page(s) 120402

    Abstract: Interactions of microplastics (MPs) biofilm with antibiotic resistance genes (ARGs) and antibiotics in aquatic environments have made microplastic biofilm an issue of keen scholarly interest. The process of biofilm formation and the degree of ARGs ... ...

    Abstract Interactions of microplastics (MPs) biofilm with antibiotic resistance genes (ARGs) and antibiotics in aquatic environments have made microplastic biofilm an issue of keen scholarly interest. The process of biofilm formation and the degree of ARGs enrichment in the presence of antibiotic-selective pressure and the impact on the microbial community need to be further investigated. In this paper, the selective pressure of ciprofloxacin (CIP) and illumination conditions were investigated to affect the physicochemical properties, biomass, and extracellular polymer secretion of polyvinyl chloride (PVC) microplastic biofilm. In addition, relative copy numbers of nine ARGs were analyzed by real-time quantitative polymerase chain reaction (qPCR). In the presence of CIP, microorganisms in the water and microplastic biofilm were more inclined to carry associated ARGs (2-3 times higher), which had a contributing effect on ARGs enrichment. The process of pre-microplastic biofilm formation might have an inhibitory effect on ARGs (total relative abundance up to 0.151) transfer and proliferation compared to the surrounding water (total relative abundance up to 0.488). However, in the presence of CIP stress, microplastic biofilm maintained the abundance of ARGs (from 0.151 to 0.149) better compared to the surrounding water (from 0.488 to 0.386). Therefore, microplastic biofilm act as abundance buffer island of ARGs stabilizing the concentration of ARGs. In addition, high-throughput analyses showed the presence of antibiotic-resistant (Pseudomonas) and pathogenic (Vibrio) microorganisms in biofilm under different conditions. The above research deepens our understanding of ARGs enrichment in biofilm and provides important insights into the ecological risks of interactions between ARGs, antibiotics, and microplastic biofilm.
    MeSH term(s) Microplastics ; Plastics ; Genes, Bacterial ; Rivers ; Anti-Bacterial Agents/pharmacology ; Drug Resistance, Microbial/genetics ; Ciprofloxacin ; Water ; Biofilms
    Chemical Substances Microplastics ; Plastics ; Anti-Bacterial Agents ; Ciprofloxacin (5E8K9I0O4U) ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-02-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2024.120402
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Toxicity in vitro reveals potential impacts of microplastics and nanoplastics on human health: A review

    Shi, Qingying / Tang, Jingchun / Liu, Rutao / Wang, Lan

    Critical reviews in environmental science and technology. 2022 Nov. 2, v. 52, no. 21

    2022  

    Abstract: Microplastics (MPs) have attracted considerable interest on account of their ubiquitous presence in the environment in recent years. In particular, nanoplastics (NPs), with smaller sizes, seem to obtain more attention due to their unique physical and ... ...

    Abstract Microplastics (MPs) have attracted considerable interest on account of their ubiquitous presence in the environment in recent years. In particular, nanoplastics (NPs), with smaller sizes, seem to obtain more attention due to their unique physical and chemical properties. Humans are inevitably exposed to MPs and NPs, whereas the potential adverse effects on human health have been little explored. In this review, we provided a systemically overview of recent in vitro studies related to the impacts of MPs and NPs on human health. The uptake mechanisms of MPs and NPs and affecting factors at the cellular level were first discussed. The toxic effects of plastic particles themselves as well as the cytotoxic mechanisms of MPs and NPs were elaborated subsequently. Furthermore, we summarized the toxicity of adhering contaminants and plastic leachates. In general, the MPs and NPs exert adverse effects in various cell types through multiple toxic mechanisms. Nonetheless, challenges on MPs and NPs toxicity still remain hindering the risk assessment on human health. Key challenges and further research needs are also suggested in this review as more studies are needed to perform and explore the potential impacts of MPs and NPs on human health in the future.
    Keywords cytotoxicity ; environmental science ; human health ; nanoplastics ; risk assessment
    Language English
    Dates of publication 2022-1102
    Size p. 3863-3895.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2030115-7
    ISSN 1547-6537 ; 1064-3389
    ISSN (online) 1547-6537
    ISSN 1064-3389
    DOI 10.1080/10643389.2021.1951528
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Microplastics in plant-microbes-soil system: A review on recent studies

    Ren, Xinwei / Yin, Shan / Wang, Lan / Tang, Jingchun

    Science of the total environment. 2022 Apr. 10, v. 816

    2022  

    Abstract: Microplastics (MPs) and nanoplastics (NPs) have been widely studied, mostly focusing on the methods of separation, detection, and adsorption or the ecological effects in aquatic ecosystems. When different sources and types of MPs/NPs enter the soil, they ...

    Abstract Microplastics (MPs) and nanoplastics (NPs) have been widely studied, mostly focusing on the methods of separation, detection, and adsorption or the ecological effects in aquatic ecosystems. When different sources and types of MPs/NPs enter the soil, they can affect the biogeochemical cycle in terms of the direct impacts on soil physicochemical properties and soil organisms, and the indirect impact on soil biota through changes in soil material cycling. To date, a few studies have focused on the effects of MPs/NPs on soil ecosystems, including soil properties, microbial communities, soil fauna, and plants, as well as the potential or affirmed correlations among them. In this review, we summarized the recent literature on soil MPs/NPs focusing on their types, sources, separation, and ecological impacts on soil properties, microbes, and plants. We attempted to establish an overall relationship between MPs/NPs and soil plant system. Based on existing studies, we also highlight the research gaps and propose several directions for future studies.
    Keywords adsorption ; biogeochemical cycles ; environment ; nanoplastics ; soil fauna
    Language English
    Dates of publication 2022-0410
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.151523
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  10. Article ; Online: Characteristics of ball-milled PET plastic char for the adsorption of different types of aromatic organic pollutants

    Mun, Hyokchol / Ri, Cholnam / Liu, Qinglong / Tang, Jingchun

    Environ Sci Pollut Res. 2022 Nov., v. 29, no. 51 p.77685-77697

    2022  

    Abstract: Ball-milled plastic char (BMPC) was manufactured by ball-milling of native plastic char (PC) that was synthesized via slow pyrolysis of polyethylene terephthalate (PET) water bottle waste, and its adsorption characteristics of aqueous phenanthrene (PHE), ...

    Abstract Ball-milled plastic char (BMPC) was manufactured by ball-milling of native plastic char (PC) that was synthesized via slow pyrolysis of polyethylene terephthalate (PET) water bottle waste, and its adsorption characteristics of aqueous phenanthrene (PHE), phenol, and 2,4,6-trichlorophenol (2,4,6-TCP) and its possible mechanisms were investigated. With the increase of PC pyrolysis temperature, the specific surface area of BMPC increased obviously, forming larger functional groups compared to PC. Boehm titration showed that total acidic groups of BMPC decreased significantly with the increase of pyrolysis temperature. The sorption kinetics of three adsorbates was adequately simulated by pseudo-second-order model (R² > 0.99). Langmuir model fitted well the adsorption isotherms of PHE and phenol, while Freundlich model simulated the adsorption isotherm of 2,4,6-TCP better. The adsorption amount of PHE, phenol, and 2,4,6-TCP increased significantly as the pyrolysis temperature increased. The maximum BMPC adsorption capacity reached 21.9 mg·g⁻¹ (for PHE), 106 mg·g⁻¹ (for phenol), and 303 mg·g⁻¹ (for 2,4,6-TCP) at 25 °C in aqueous solution. FTIR analysis suggested that surface sorption-based π–π interaction was a dominant mechanism of PHE adsorption; meanwhile, H-bonding between O-containing groups on BMPC and hydroxyl groups of adsorbates was responsible for phenol and 2,4,6-TCP removal. This paper shows that BMPC can be used as adsorbent for treating aromatic compounds in aqueous environment and has an economic worth of application.
    Keywords 2,4,6-trichlorophenol ; adsorbents ; adsorption ; aqueous solutions ; economic valuation ; hydrogen bonding ; models ; phenanthrenes ; phenol ; polyethylene terephthalates ; pyrolysis ; sorption isotherms ; surface area ; temperature ; titration ; wastes
    Language English
    Dates of publication 2022-11
    Size p. 77685-77697.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-21143-8
    Database NAL-Catalogue (AGRICOLA)

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