Effect of fullerol nanoparticles on the transport and release of copper ions in saturated porous media
2019
Yuan, Yue | Guo, Panpan | Peng, Xianjia
While the application and discharge of carbon nanomaterials (CNMs) increased rapidly, the research on the environmental safety of CNMs is also increasing. The high dispersity and mobility of modified CNMs in environmental media may have impacts on the environmental behavior of heavy metals. This work mainly studied the effect of fullerol nanoparticles (C₆₀(OH)ₙ) on Cu²⁺ transport, sorption, and release in water-saturated porous media. The results showed that due to the strong adsorption capacity of C₆₀(OH)ₙ for Cu²⁺, the transport of Cu²⁺ could be facilitated. However, with the pre-existence of C₆₀(OH)ₙ in porous media, the transport of Cu²⁺ was also slightly enhanced. In addition, when loaded into the pre-contaminated porous medium, the C₆₀(OH)ₙ also enhanced the release of retained Cu²⁺, which implies a high environmental risk of C₆₀(OH)ₙ.
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