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Mechanistic insight into multiple effects of copper ion on the photoreactivity of dissolved organic matter.
J Hazard Mater
January 2025
Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Sunlight irradiation of dissolved organic matter (DOM) in surface water results in the production of photochemically produced reactive intermediates (PPRIs). This process is inevitably influenced by co-existing metal ions in aquatic environments; However, the underlying mechanism remains unclear. In this study, the effect of co-existing copper ion (Cu) on PPRIs produced by irradiation of DOM was systematically investigated, because Cu is a typical redox transient cation and has strong affinity to DOM.
View Article and Find Full Text PDFTomato biodiversity reveals landrace enhanced drought-adaptive strategy.
Plant Physiol Biochem
January 2025
Department of Agriculture, Food and Environment, University of Pisa, Italy; Centre of Agro-Ecological Research "Enrico Avanzi" (CiRAA), Pisa, Italy.
Tomato (Solanum lycopersicum L.) is a major crop in the Mediterranean basin, vulnerable to drought at any crop stage. Landraces are traditional, locally adapted varieties with greater resilience to water scarcity than modern cultivars.
View Article and Find Full Text PDFNatural Organic Matter Stabilizes Pristine Nanoplastics but Destabilizes Photochemical Weathered Nanoplastics in Monovalent Electrolyte Solutions.
Environ Sci Technol
January 2025
Section of Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands.
Photochemical weathering and eco-corona formation through natural organic matter (NOM) adsorption play vital roles in the aggregation tendencies of nanoplastics (NPs) in aquatic environments. However, it remains unclear how photochemical weathering alters the adsorption patterns of NOM and the conformation of the eco-corona, subsequently affecting the aggregation tendencies of NPs. This study examined the effect of Suwannee River NOM adsorption on the aggregation kinetics of pristine and photoaged polystyrene (PS) NPs in monovalent electrolyte solutions.
View Article and Find Full Text PDFUsing hyperspectral reflectance to detect changes in photosynthetic activity in leaves as a function of decreasing soil water content.
Photosynthetica
January 2025
Chengde Bijiashan Ecological Agriculture Technology Development Co., Ltd., 067000 Chengde, Hebei, China.
Application of hyperspectral reflectance technology to track changes in photosynthetic activity in () remains underexplored. This study aimed to investigate the relationship between hyperspectral reflectance and photosynthetic activity in the leaves of in response to a decrease in soil water content. Results demonstrated that the reflectance in both the visible light and near-infrared bands increased in conjunction with reduced soil water content.
View Article and Find Full Text PDFMechanistic insights into the visible-light-driven -arylation of carboxylic acids catalyzed by xanthine-based nickel complexes.
Chem Sci
January 2025
University of Regensburg, Institute of Inorganic Chemistry 93040 Regensburg Germany
We present a photocatalytic protocol for the -arylation of carboxylic acids using nickel complexes bearing C8-pyridyl xanthines. Our studies suggest that the underlying mechanism operates independently of external photosensitizers. Stoichiometric experiments and crystallographic studies characterize the catalytically relevant Ni complexes.
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