The potential of microplastics as adsorbents of sodium dodecyl benzene sulfonate and chromium in an aqueous environment

Zhang, Liying; Yong-gan, LI; Wang, Wenxia; Zhang, Wei; Zuo, Qiting; Abdelkader, Amr M.; Xi, Kai; Heynderickx, Philippe M.; Kim, Ki‐Hyun

doi:10.1016/j.envres.2021.111057

Cited by 31 publications

(14 citation statements)

References 66 publications

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“…For Cu(II) and Pb(II), the observed adsorption variations with particle size implied that the adsorption on microplastic was considerably related to the porosity. Compared with Cu(II) and Pb(II), the influence of particle size on Cr(III) adsorption was relatively small, which is similar to the tendency observed in other studies (e.g., Zhang et al, 2021). It may be attributable to the insensitive response of Cr(III) adsorption to the stratification variation of the microplastic surface.…”

Section: Size Effect On Metal Adsorptionsupporting

confidence: 83%

Kinetics and Size Effects on Adsorption of Cu(II), Cr(III), and Pb(II) Onto Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles

Han

Wang

et al. 2021

Front. Mar. Sci.

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Due to its small size, large specific surface area and hydrophobicity, microplastics, and the adsorbed contaminants may together cause potential negative effects on ecosystems and human beings. In this study, kinetics and size effects on adsorption of Cu(II), Cr(III), and Pb(II) onto PE, PP and PET microplastic particles were explored. Results indicated that the PE and PET microplastics have the higher adsorption capacity for Cu(II), Cr(III), and Pb(II) than that for PP microplastic. The adsorption capacity was affected by microplastic types and metal species. Among the three metals, Pb(II) had the largest adsorption amount on microplastic particles, especially on PET particles. Moreover, the adsorption capacities of microplastics increase with the decrease of particle size. The metal adsorption capacity of <0.9 mm microplastics is greater than that of 0.9–2 mm and 2–5 mm microplastics. The size effect on metal adsorption was largest for PE microplastic. More attention should be paid in case of the coexistence of heavy metals and tiny PE and PET microplastics in the environment.

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Section: Size Effect On Metal Adsorptionsupporting

confidence: 83%

Kinetics and Size Effects on Adsorption of Cu(II), Cr(III), and Pb(II) Onto Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles

Han

Wang

et al. 2021

Front. Mar. Sci.

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“…Although many studies revealed that MPs themselves can induce mortality through severe digestive system dysfunction, gut blockage, and feeding inhibition at extremely high concentrations, such direct damage was negligible in this study; this is because each aquatic animal was exposed to environmentally relevant concentrations of MPs. Synergistic toxicological effects can be manifested by higher attachment of Cr(VI) on the hydrophobic surface of MPs via sorption and a subsequent long preservation in internal organs [ 62 , 63 , 64 , 65 ]. The mechanism of Cr(VI) toxicity involves its direct entrance into the cell through anionic channels (e.g., HPO 4 2− and SO 4 2− ) and/or phagocytosis and production of strongly oxidized pentavalent and tetravalent chromium, resulting in the generation of oxygen-free radicals that are responsible for oxidative stress and damage to DNA and proteins [ 66 ].…”

Section: Discussionmentioning

confidence: 99%

Exposure to Environmentally Relevant Concentrations of Polystyrene Microplastics Increases Hexavalent Chromium Toxicity in Aquatic Animals

Kim

Haque

Lee

et al. 2022

Toxics

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The prevalence of hexavalent chromium [Cr(VI)] and microplastics (MPs) is ubiquitous and is considered a threat to aquatic biota. MPs can act as a vector for waterborne metals; however, the combined effects of Cr(VI) and MPs on aquatic organisms are largely unknown. In this study, aquatic model animals, such as rotifers (Brachionus calyciflorus and B. plicatilis), water fleas (Daphnia magna), amphipods (Hyalella azteca), polychaetes (Perinereis aibuhitensis), and zebrafish (Danio rerio) were exposed to environmental concentrations (1, 10, and 100 particles L−1) of 1 μm polystyrene MPs alone, Cr(VI) alone, or Cr(VI) combined with MPs. Following exposure, the potential effects were measured by analyzing basic life endpoints (e.g., survival rate and growth). A significant response to MPs alone was not observed in all animals. However, MPs combined with Cr(VI) concentration-dependently increased Cr(VI) toxicity in two rotifer species. The survival rate of water fleas was significantly reduced upon exposure to Cr(VI) + MPs (100 particles L−1) compared with exposure to Cr(VI) alone, and significantly decreased the number of offspring. Although there was no significant effect on the body length of the amphipod, concentration-dependent decreases in their survival rates were observed. In contrast, no significant change was found in the survival rate of polychaetes; however, their burrowing ability was inhibited by Cr(VI) + MPs (100 particles L−1). Further, larval mortality was increased in response to Cr(VI) + MPs (100 particles L−1) in zebrafish. Taken together, the findings suggest that MPs can exacerbate Cr(VI) toxicity, even at environmental levels.

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“…MPs have become extremely conspicuous and have already been detected in personal care products, food (e.g., drinking water, milk, and table salt), and baby products [6][7][8][9]. Additionally, MPs are known to adsorb many types of pollutants such as heavy metals, persistent organic pollutants (POPs), and chemical additives such as flame retardants and antioxidants [2,[10][11][12][13][14][15][16][17], thus exacerbating their adverse effects on human and animal health [18][19][20][21][22]. For example, after ingesting microplastics, the marine invertebrates' digestive enzyme systems would be damaged, and even their reproductive system might be affected [19,23].…”

Section: Introductionmentioning

confidence: 99%

Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67

Wan

Wang

Sheng

et al. 2022

Toxics

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Due to the continuous and adverse effects of microplastics on the environment, an increasing number of studies have begun to focus on their migration patterns and removal from aquatic environments. Herein, our study innovatively evaluated the ability of the capacity of ZIF-67, a novel metal–organic framework (MOF) material, to adsorb polystyrene (PS) microplastics (MPs) from aqueous solutions, aiming to explore the potential of MOF materials to remove MPs from wastewater. The adsorption ratio of PSMPs (5 mg/L, 30 mL) by ZIF-67 reached up to 92.1%, and the PSMP adsorption equilibrium was achieved within 20 min at 298 K. The adsorption of PSMPs would be favored at a pH of 8, a PSMPs solution concentration of 5 mg/L, and a temperature of 298 K. Further analyses demonstrated that hydrogen bond interactions, π-π stacking, and electrostatic interactions played a crucial role in the adsorption of PSMPs by ZIF-67 in aqueous solutions. Our findings thus provide insight into novel methods to remove MPs from acidic and weakly alkaline aquatic environments and wastewater.

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The potential of microplastics as adsorbents of sodium dodecyl benzene sulfonate and chromium in an aqueous environment

Cited by 31 publications

References 66 publications

Kinetics and Size Effects on Adsorption of Cu(II), Cr(III), and Pb(II) Onto Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles

Kinetics and Size Effects on Adsorption of Cu(II), Cr(III), and Pb(II) Onto Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles

Exposure to Environmentally Relevant Concentrations of Polystyrene Microplastics Increases Hexavalent Chromium Toxicity in Aquatic Animals

Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67

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