Filtration products containing silver nanoparticles (Ag-NPs) have been used for water purification to provide drinking water for humans. However, it is unclear if differences in water chemistry influence their effectiveness or whether the presence of Ag in the filtrate (drinking water) impacts the gut microbiome. Using water samples differing markedly in chemical properties, we have found that ≥ 99

A critical question for read across of the hazards of nanomaterials is the degree to which their mechanisms of action differ from those of their bulk chemical constituents. It has been established that metal and metal oxide nanoparticles (NPs) can be accumulated by invertebrate species. Moreover, it has been hypothesised that the observed toxicity resulting on exposure to these nanomaterials is most

Adsorption-photocatalysis is a critical technique to meet the global challenges of environmental pollution and energy source shortages. However, scientific knowledge on how the adsorption process influences the subsequent photocatalytic performance is lacking. Here, we first propose a mechanism for understanding the intrinsic structure-performance relationship between phenolic pollutants and nanocage-like

Oxidative stress is accepted as a key mechanism of silver nanoparticles (AgNPs) toxicity in living organisms. Therefore, mechanistic studies related to the impact of AgNPs on the structure and function of antioxidant enzymes at the molecular level are essential for a comprehensive evaluation of their toxicity. By using a combination of spectroscopic, imaging and fractionation techniques we explored

The migration and bioavailability of Cr(VI) is determined by its adsorption behavior, which is sensitive to coordination environment and physicochemical properties of mineral surfaces, especially natural surface defects such as surface hydroxyls (OHs) and oxygen vacancies (OVs). However, natural minerals of high-percentage surface OHs and OVs are not available, concealing the quantitative relationship

Nanozymes are inorganic nanopaticles that mimic the enzyme-like properties in redox reactions, processing both unique properties of nanomaterials and a catalytic function. Because of high catalytic activity, stability and multifunctionality, nanozyme are of increasingly wide interest in the fields of environmental science and technology. In this article, we review the most recent advances of nanozyme

Nitrate and phosphorous were the leading cause of eutrophication and deterioration of water quality worldwide, owing to increasing fossil fuel consumption and use of modern fertilizers. Herein, we introduced an N-doped ordered mesoporous carbon based skeleton with Cu-Pd nanocrystals (Cu-Pd@N-OMC) for electrocatalytic reduction of NO3− to dinitrogen (N2). Laboratory experiments demonstrated high NO3−

Zinc oxide nanoparticles (ZnO NPs) are one of the most abundantly applied nanomaterials in nanotechnology-based industries, and recent research continues to highlight their potential eco-toxicity especially to the aquatic environment. When they entered into the water environment, their physicochemical transformations may result in varied unknown end products and induce additional potential toxicity

Infestation by parasitic weeds is one of the most important environmental challenges threatening cropping systems worldwide. Among these, branched broomrape (Orobanche ramosa), a root holoparasitic weed, detrimentally affects many crops especially tomato (Lycopersicon esculentum) and causes severe crop losses. The positive role of silicon nanoparticles (SiNPs) on growth and yield of plants grown under

In this work, the carbon nanotubes (CNTs) encapsulating Zn and Fe bimetallic nanoparticles (FeZn@NC) was synthesized through one-pot pyrolytic strategy. The persulfate (PS) activation ability of FeZn@NC with various ratios of Fe and Zn was determined by sulfamethoxazole (SMX) degradation. Result indicated that the iron played a key role to form external CNTs and the catalytic activity of FeZn@NC was

The selective catalytic oxidation of ammonia (NH3-SCO) is the last mitigation step in the exhaust treatment by a 4-way catalytic converter to convert any excess and unreacted NH3 (that was used as a reductant of NOx) to the environmentally benign N2 and H2O. Here, we report a series of highly reactive and selective nano Cu/zeolites for the NH3-SCO reaction. The NH3-SCO activity was found in the order