Interactions of microplastics with organic, inorganic and bio-pollutants and the ecotoxicological effects on terrestrial and aquatic organisms

Song, Xiaocheng; Zhuang, Wen; Cui, Hui-Zhen; Liu, Min; Gao, Teng; Li, Ao; Gao, Zhenhui

doi:10.1016/j.scitotenv.2022.156068

Cited by 72 publications

(19 citation statements)

References 229 publications

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“…This phenomenon was more obvious especially when pH=6. Usually, the vibration or elongation of characteristic peaks indicate surface changes of MPs (such as the appearance of wrinkles or cracks), thus aging and cracking may have occurred at lower pH conditions (Mo et al, 2021;Xu et al, 2021;Song et al, 2022). Under acidic conditions, the adsorption of Tl(I) by PE was mainly nonlinear adsorption, which means that at low pH, the concentration of H + was higher, which accelerated the aging and rupture of PE (Koutnik et al, 2021).…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…The enrichment of thallium in pyrite may be due to a number of factors, including low-temperature epithermal metallic origin (Liu et al, 2016). The main sources of Tl produced by human activities include the smelting of Tlcontaining ores, slag weathering and leaching, discharge of industrial wastewater, and coal combustion (Song et al, 2022). Tl pollution incidents caused by mining, ore smelting or corporate sewage have occurred all over the world (Liu et al, 2017;Ghezzi et al, 2019;D'Orazio et al, 2020;Horn et al, 2020;.…”

Section: Introductionmentioning

confidence: 99%

“…Microplastics (MPs) pollution, which is exacerbated by massive plastic production and improper disposal, has now become a globally recognized new type of environmental problem (Cao et al, 2021;Song et al, 2022). MPs have the characteristics of large specific surface area, high porosity, amorphous structure which hydrophobic surface, so they can adsorb a series of pollutants (such as heavy metals, organic matter and antibiotic resistance genes) with different physicochemical properties and affect the behavior of these pollutants (Liu et al, 2020;Cao et al, 2021;Kutralam-Muniasamy et al, 2021;Liu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…MPs have the characteristics of large specific surface area, high porosity, amorphous structure which hydrophobic surface, so they can adsorb a series of pollutants (such as heavy metals, organic matter and antibiotic resistance genes) with different physicochemical properties and affect the behavior of these pollutants (Liu et al, 2020;Cao et al, 2021;Kutralam-Muniasamy et al, 2021;Liu et al, 2021). The combined toxicity of the co-pollutants is often higher than that of a single pollutant (Song et al, 2022). Ag nanoparticles can hetero-aggregate with PS through electrostatic interactions with O-containing groups (C-O, C-OH and C=O), thus co-precipitate from water phase (Zhang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The interaction between Pb/Cu and PE was physisorption, and they can attach through weak bonds and easy to release into the aquatic ecosystem (Purwiyanto et al, 2020). The interactions between MPs and heavy metals are affected by characteristics of the MPs (particle size, specific surface area, functional groups, aging, concentrations, additives) and external factors (pH, salinity, temperature and redox status (Gao et al, 2021;Li et al, 2022;Liu et al, 2022;Song et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Sorption behavior and mechanisms of thallium to microplastics

et al. 2022

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Thallium (Tl) is a metal of high toxicity, and the problem of Tl pollution is being faced globally. However, environmental data on Tl are still scarce and its biogeochemical behaviors remain mostly unclear. Studies have revealed the potential transport of other heavy metal by microplastics (MPs), but there is no report on the interactions between Tl and MPs yet. Therefore, we studied the adsorption of Tl by the three most commonly detected MPs, i.e., polyethylene (PE), polystyrene (PS), and polypropylene (PP) in fresh and seawater. We considered the effects of particle size, pH and competitive cations on adsorption capacity. The results showed PS has the highest adsorption capacity for Tl which was mainly through surface complexation. PS showed the lowest crystallinity and had the most oxygen-containing functional groups among the studied MPs. The adsorption of Tl on PE and PP was dominated by physical adsorption. The adsorptions exhibited significant salinity and pH dependence. Dominant cations in seawater competed with Tl ions for adsorption sites on MPs. With the increase in pH, the deprotonation of the carboxyl functional groups on MPs was enhanced, which increased the effective adsorption sites and promoted the adsorption of Tl. However, the adsorption capacity of the studied MPs for Tl was much lower than the corresponding capacity of natural minerals (clay, iron and manganese oxides) previously reported. Therefore, MPs may not be the main factors affecting the environmental behavior of Tl. This study provides valuable information for the study of thallium’s environmental behavior and ecological risk assessment.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sorption behavior and mechanisms of thallium to microplastics

et al. 2022

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Differential effects of polystyrene microplastics on the adsorption of cadmium and ciprofloxacin by tea leaf litter‐derived magnetic biochar: Influencing factors and mechanisms

Gong,

Chen,

Shi

et al. 2024

Water Environment Research

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Water pollution involves the coexistence of microplastics (MPs) and traditional pollutants, and how can MPs influence the adsorption of other pollutants by biochar during the treatment process remains unclear. This study aimed to investigate the influence of polystyrene microplastics (PS MPs) on the adsorption of cadmium (Cd) and ciprofloxacin (CIP) by magnetic biochar (MTBC) in the single and binary systems. MTBC was prepared using tea leaf litter; the effects of time, pH, and salt ions on the adsorption behaviors were investigated; and X‐ray photoelectronic spectroscopy (XPS) and density flooding theory analysis were conducted to elucidate the influence mechanisms. Results indicated that PS MPs reduced the pollutants adsorption by MTBC due to the heterogeneous aggregation between PS MPs and MTBC and the surface charge change of MTBC induced by PS MPs. The effects of PS MPs on heavy metals and antibiotics adsorption were distinctly different. PS MPs reduced Cd adsorption on MTBC, which were significantly influenced by the solution pH and salt ions contents, suggesting the participation of electrostatic interaction and ion exchange in the adsorption, whereas the effects of PS MPs on CIP adsorption were inconspicuous. In the hybrid system, PS MPs reduced pollutants adsorption by MTBC with 66.3% decrease for Cd and 12.8% decrease for CIP, and the more remarkable reduction for Cd was due to the predominated physical adsorption, and CIP adsorption was mainly a stable chemisorption. The influence of PS MPs could be resulted from the interaction between PS MPs and MTBC with changing the functional groups and electrostatic potential of MTBC. This study demonstrated that when using biochar to decontaminate wastewater, it is imperative to consider the antagonistic action of MPs, especially for heavy metal removal.Practitioner Points Magnetic biochar (MTBC) was prepared successfully using tea leaf litter. MTBC could be used for cadmium (Cd) and ciprofloxacin (CIP) removal. Polystyrene microplastics (Ps MPs) reduced Cd/CIP adsorption by MTBC. Ps MPs effects on Cd adsorption were more obvious than that of CIP. Ps MPs changed the functional groups and electrostatic potential of MTBC, thus influencing MTBC adsorption.

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