Nano-SiO2 combined with a surfactant enhanced phenanthrene phytoremediation by Erigeron annuus (L.) Pers
2020
Zuo, Runzhang | Liu, Huigang | Xi, Ying | Gu, Yan | Ren, Dong | Yuan, Xi | Huang, Yingping
The objective of this experiment was to evaluate the effects of Triton X-100 (1000 mg kg⁻¹) and nano-SiO₂ (500 mg kg⁻¹) on Erigeron annuus (L.) Pers. grown in phenanthrene spiked soil (150 mg kg⁻¹) for 60 days. Results show that untreated groups, groups treated with both Triton X-100 and nano-SiO₂, exhibited better phenanthrene degradation rates and improved root biomasses, chlorophyll contents, and soil enzyme activities. This study demonstrates that Triton X-100 combined with nano-SiO₂ protects plants, alleviating the stress of polycyclic aromatic hydrocarbons (PAHs), and can provide a means for improving phytoremediation of PAH contaminated soils.
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