PUBLICATION: Nano zero-valent iron application to decrease As, Cd, Pb, and Zn plant uptake

The effects of nano zero-valent iron (nZVI) were investigated in terms of the immobilisation of As, Zn, Pb and Cd in two soil types and their potential uptake by plants using rhizobox experiments. Sunflower and ryegrass were tested for As-rich and Zn-rich soil samples, respectively. No negative impact of root presence on the nZVI functionality was observed. The application of nZVI effectively lowered the uptake of target risk elements into plant tissues. Vítková et al. suggested the following stabilising mechanisms: (i) sorption onto both existing and newly formed Fe (hydr)oxides, (ii) formation of secondary Fe-As phases, and (iii) sorption onto Mn (hydr)oxides.

Vítková M., Puschenreiter M., Komárek M., 2018. Effect of nano zero-valent iron application on As, Cd, Pb, and Zn availability in the rhizosphere of metal(loid) contaminated soils. Chemosphere 200, 217-226. DOI: 10.1016/j.chemosphere.2018.02.118

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