Effects of Metal-Organic Frameworks MOF-74(Mg) on Pea Seedlings

Jinwei Yang, Yusen Ma, Junrou Zhou

Metal-organic framework; Metal element, Toxicity; Photosynthesis; Environmental effects

Metal-organic framework (MOF) materials have unique structure and fantastic properties for wide applications. Pilot studies highlight the toxicity and potential threats of MOF materials to the environment. In this study, we aimed reveal the influence of metal species on the toxicity of MOF materials. MOF-74(Mg) was synthesized using nontoxic Mg as the metal center, and the phytotoxicity of MOF-74(Mg) to pea (Pisum sativum L.) was directly measured. MOF-74(Mg) had limited influences on the germination and growth of pea, while stimulating effect on the photosynthesis was observed at 1 mg/L and higher. MOF-74(Mg) increased the Mg contents of leaves, where Mg is an essential element for chlorophyll synthesis. Our results indicated that the environmental toxicity of MOF materials with nontoxic metal center was mostly safe to environment.

https://doi.org/10.31871/IJNTR.10.4.12