Improving the uptake of PAHs by the ornamental plant Sedum spectabile using nano-SiO and nano-CeO.

Polycyclic aromatic hydrocarbons (PAHs) pollution is a global ecological soil problem. Screening and establishing an efficient phytoremediation system would be beneficial for alleviating this problem. The ornamental plant Sedum spectabile was selected as the remediation plant to study the removal efficiencies of PAHs after adding different concentrations of nano-SiO, nano-CeO, and traditional Na-montmorillonite (Na-MMT).