Investigation on the adsorption and desorption behaviors of heavy metals by tire wear particles with or without UV ageing processes

Chemical characteristics, leaching, and stability of the ubiquitous tire rubber-derived toxicant 6PPD-quinone

“…, the surface area of crumb rubbers is measured at hundreds to thousands of cm 2 g −1 (ref. 44–46)). The high specific surface area indicates a porous structure which can retain inaccessible or kinetically limited 6PPDQ mass during equilibration 47–49 compared to smooth surface materials ( e.g.…”

“…For instance, although it is highly variable and depends upon material type and sizes, the surface area of rubbers is typically high (e.g., the surface area of crumb rubbers is measured at hundreds to thousands of cm 2 g −1 (ref. [44][45][46]). The high specic surface area indicates a porous structure which can retain inaccessible or kinetically limited 6PPDQ mass during equilibration [47][48][49] compared to smooth surface materials (e.g., glass).…”

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

“…In Table 1, the values of k 2 were lower than 0.01 g (µgh) −1 for Cu(II) and Cr(III) adsorption. It did not only indicate that the adsorption rate was proportional to the number of unoccupied sites (Fan et al, 2021), but also revealed the adsorption of Cu(II) and Cr(III) onto the microplastics were a slow process, especially for the virgin microplastics with relatively homogeneous smooth surface (Li et al, 2019;Oz et al, 2019;Wang et al, 2020).…”

Non-Negligible Effects of UV Irradiation on Transformation and Environmental Risks of Microplastics in the Water Environment

“…Among them, PS and PVC after photoaging by UV irradiation showed higher adsorption of ciprofloxacin (CIP) than unaged MPs, and the main mechanism of adsorption between photoaged MPs and CIP was the physical interaction (electrostatic interaction and intermolecular hydrogen bond interaction) [ 51 , 60 ]. The specific surface area and hydrophilicity of PLA increased after ultraviolet ray aging, which contributed to an increase in the adsorption capacity of antibiotics (CIP and tetracycline) [ 84 ]. After photoaging treatment of PS, the equilibrium adsorption capacity of CIP and bisphenol A (BPA) increased from 0.15 and 4.07 mg/g to 4.92 and 8.71 mg/g, respectively [ 49 ].…”

“…With the extension of the irradiation time, the adsorption capacity of PS-MPs toward Cu 2+ and Zn 2+ increased, and the adsorption capacity and adsorption strength of PP-MPs and tire wear particles for Pb 2+ and Cd 2+ rose. The results of the above researches proved that the correlation between the aging degree of MPs and the adsorption capacity of heavy metals was existed [ 33 , 84 , 86 , 87 ].…”