Dissolution of actinide dioxides, including neptunium dioxide (NpO2(s)), is paramount for prediction of environmental fate of nuclear materials. Quantifying dissolution rates, as well as understanding qualitative dissolution mechanisms, informs performance assessment for geologic disposal of spent nuclear fuel and management of legacy radioactive waste. The aim of this research was to measure the dissolution

Graphene oxide membrane (GOM) continues to attract intense interest because of its promising two-dimensional channels. However, finely adjusting GOM’s interplanar spacing for tunable molecular separation is still challenging in aqueous solution. Herein, we report tent-shaped interplanar channels that can be constructed by loading SiO2 nanosphere (diameter ≈ 30 nm) into ultrathin GOM (thickness ≈ 20

The geochemical cycling of iron and carbon can couple in unique ways in the euphotic zone of aquatic systems. For example, the prevalence of hematite nanoparticles and low molecular weight organics that can functionalize their surfaces, such as oxalate, creates a solar- photoactive interfacial system capable of generating reactive oxygen species (ROS) that degrade natural organic matter. Here we report

The growing applications of carbon nanomaterials (CNMs) are speculated to exert potential risks to aquatic ecosystems. However, little is known about the response of aquatic microalgae to surface modified nanodiamonds (NDs), which could limit the safer design and scientific assessment for further application. Here, we comprehensively integrated phenotypic and transcriptional analyses to investigate

We present a new, rapid method to photocatalytically reduce the highly toxic Cr(VI) to Cr (III) by graphene oxide (GO) photocatalyst utilizing renewable sunlight or visible light. We found that GO can photoreduce Cr(VI) (0.32 mM) with 35.8 ± 4.8% conversion in 120 min of solar irradiation and that oxalate significantly accelerates this reaction (85.6 ± 5.4% in 30 min). The photocatalytic reactivity

The present study aimed at creating a solid nanostructured scaffold suitable for the development of bacterial biofilms and that enabled bacteria to resist successfully to harsh nutritive and environmental conditions for potential applications. As a model system, we combined a self-standing electrospun nanostructured poly(ε-caprolactone)-based scaffold (EN-PCLS) with Burkholderia terricola cells. The

Fundamental knowledge about plutonium intrinsic colloids is a key issue for the prediction of plutonium transport and release rates in the environment. Recent studies demonstrated that the particle size and surface properties of intrinsic Pu colloids are strongly influenced by the preparation method. In this work, a combination of synchrotron Small Angle X-ray Scattering (SAXS) with X-ray Absorption

Metal nanoparticles (NPs) released into the aquatic environment will likely accumulate in sediment and be available for sediment-dwelling invertebrates that serve as food for other organisms, such as fish. The aim of the present study was to investigate trophic transfer of copper oxide (CuO) NPs and dissolved Cu (CuCl2) from natural sediment to the sediment-dwelling worm Tubifex tubifex, and then to

Engineered nanomaterials interfaced with plant seeds can improve stress tolerance during the vulnerable seedling stage. Herein, we investigated how priming seeds with antioxidant poly (acrylic acid)-coated cerium oxide nanoparticles (PNC) impacts cotton (Gossypium hirsutum L.) seedling morphological, physiological, biochemical, and transcriptomic traits under salinity stress. Seeds primed with 500

Antimony (Sb) is a non-necessary metal element to plants which could be largely accumulated by terrestrial plants and potentially invade food chains leading to food safety concern. Considering the redox properties and widespread of silver nanoparticles (Ag NPs), the current study attempted to shed light on the mutual effects of Ag NPs and Sb (III)/Sb (V) on their uptake, accumulation, and corresponding

More and more attention has been redirected to the per- and polyfluorinated alkyl substances (PFASs), particularly perfluorooctanoic acid (PFOA), owing to their ecotoxicity and environmental risks. As one of the major emerging and persistent contaminants in the environment, the current treatment processes could not remove PFOA efficiently. The recent advances in heterogeneous photocatalysis have demonstrated

Correction for ‘Characterization of aerosolized particles from nanoclay-enabled composites during manipulation processes’ by Eun Gyung Lee et al., Environ. Sci.: Nano, 2020, DOI: 10.1039/c9en01211g.