New Light on Phytoremediation: The Use of Luminescent Solar Concentrators

The latest developments in photovoltaic studies focus on the best use of the solar spectrumthrough Luminescent Solar Concentrators (LSC). Due to their structural characteristics, LSC panelsallow considerable energy savings. This significant saving can also be of great interest in the remediationof contaminated sites, which nowadays requires green interventions characterized by highenvironmental sustainability. This study reported the evaluation of LSC panels in phytoremediationfeasibility tests. Three plant species were used at a microcosm scale on soil contaminated by arsenicand lead. The experiments were conducted by comparing plants grown under LSC panels dopedwith Lumogen Red F305 (BASF) with plants grown under polycarbonate panels used for greenhouseconstruction. The results showed a higher production of biomass by the plants grown under the LSCpanels. The uptake of the two contaminants by plants was the same in both the growing conditions,thus resulting in an increased total accumulation (defined as metal concentration times producedbiomass) in plants grown under LSC panels, indicating an overall higher phytoextraction efficiency.This seems to confirm the potential that LSCs have to be building-integrated on greenhouse roofs,canopies, and shelters to produce electricity while increasing plants productivity, thus reducingenvironmental pollution, and increasing sustainability.