Nanoscale zero-valent iron particles supported on MIL-96 a novel material for adsorption-degradation of trichloronitromethane.
As an emerging class of nitrogenous disinfection by-products, halonitromethanes have caused public health concerns owing to their high toxicity. More and more attention has been paid to the new materials and technologies for the removal of halonitromethanes. In this study, a novel material, nanoscale zero-valent iron (nZVI) supported on MIL-96 (nZVIMIL-96) with favorable stability and reusability, was synthesized and applied to the adsorption-degradation of trichloronitromethane (TCNM) in the water. The results revealed that almost all the TCNM could be removed under 20 mgL nZVIMIL-96 dosage with a wide temperature range. The optimum mass ratio of nZVI to MIL-96 was 12, and the TCNM adsorption-degradation followed a pseudo-first-order model. The coexisting ions, such as SO