Results 41 to 50 of about 984 (166)

Aerosol inputs affect the optical signatures of dissolved organic matter in NW Mediterranean coastal waters

Scientia Marina, 2016
Aeolian inputs of organic and inorganic nutrients to the ocean are important as they can enhance biological production in surface waters, especially in oligotrophic areas like the Mediterranean.
E. Denisse Sánchez-Pérez, Isabel Marín, Sdena Nunes, Fran L. Aparicio, Laura Fernández-González, Francesc Peters, Mireille Pujo-Pay, Pascal Conan, Cèlia Marrasé   +8 more
doaj   +1 more source

Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea

Science of The Total Environment, 2020
Coastal marine ecosystems are strongly influenced by different occasional events, such as intense winds, mixing, rain and river discharges. These events can directly or indirectly cause changes in dissolved organic matter (DOM) quality through a cascade of different biotic and abiotic processes.
D.Sánchez-Pérez, Elvia, Pujo-Pay, Mireille, Ortega-Retuerta, Eva, Conan, Pascal, Peters, Francesc, Marrasé, Cèlia   +5 more
openaire   +5 more sources

Plant‐Derived Silver Nanoparticles From Senegalia catechu: Antimicrobial Activity and Sunlight‐Driven Photocatalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver nanoparticles (Ag NPs) have garnered attention for their environmental and medicinal potential, emphasizing the need for eco‐friendly synthesis. This study produces Ag NPs by reacting silver nitrate with aqueous Senegalia catechu leaf extract, a reductant and stabilizer.
Devendra Khadka, Suraksha Sharma, Janaki Baral, Milan Babu Poudel, Bhoj Raj Poudel, Bishnu Prasad Bastakoti, Megh Raj Pokhrel   +6 more
wiley   +1 more source

Contrasting seasonality in optical-biogeochemical properties of the Baltic Sea. [PDF]

PLoS ONE, 2017
Optical-biogeochemical relationships of particulate and dissolved organic matter are presented in support of remote sensing of the Baltic Sea pelagic. This system exhibits strong seasonality in phytoplankton community composition and wide gradients of ...
Stefan G H Simis, Pasi Ylöstalo, Kari Y Kallio, Kristian Spilling, Tiit Kutser   +4 more
doaj   +1 more source

Embedding a Dinuclear Ru─Pt Photocatalyst Into Polyampholytic Graft Copolymer Matrix Enables Prolonged Hydrogen Evolution While Allowing Catalyst Repair

Chemistry – A European Journal, EarlyView.
A unimolecular polyampholytic graft copolymer matrix provides a protective confinement for an electrostatically embedded tetrapyridophenazine‐bridged heterodinuclear Ru‐Pt hydrogen evolving photocatalyst. The matrix slows the degradation kinetics of the catalyst and at the same time does not hinder its repair by ammonium persulfate.
Yurii Utievskyi, Alexander K. Mengele, Mariet Puthanagady, Nikita Vashistha, Linda Zedler, Christof Neumann, Marius Müßler, Andrey Turchanin, Benjamin Dietzek‐Ivanšić, Sven Rau, Felix H. Schacher   +10 more
wiley   +1 more source

The Contribution of Methane Photoproduction to the Oceanic Methane Paradox

Geophysical Research Letters, 2020
Although methanogenesis is considered a strictly anaerobic process, oxygen‐replete surface open‐ocean waters are usually supersaturated with methane (CH4), a phenomenon termed the oceanic methane paradox.
Y. Li, C. G. Fichot, L. Geng, M. G. Scarratt, H. Xie   +4 more
doaj   +1 more source

In-Situ Variability of DOM in Relation with Biogeochemical and Physical Parameters in December 2017 in Laucala Bay (Fiji Islands) after a Strong Rain Event

Journal of Marine Science and Engineering, 2021
Heavy rain events alter the biogeochemical outflows, affects water quality and ecosystem health within the coastal waters of small Pacific Islands. We characterized snapshots of the optical fingerprints of dissolved organic matter (DOM) sources together ...
Timoci Koliyavu, Chloe Martias, Awnesh Singh, Stéphane Mounier, Philippe Gérard, Cecile Dupouy   +5 more
doaj   +1 more source

Natural Anthraquinone‐Like Compound Extracted from Green Husk of Walnut Improves Photocatalytic H2O2 Production Catalyzed by TiO2 Nanoparticles

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a novel biomolecule/semiconductor hybrid catalyst was prepared by loading anthraquinone‐liked juglone onto anatase TiO2. This catalyst exhibited high photocatalytic activity for H2O2 production. Hydrogen peroxide (H2O2) is a vital oxidant with broad industrial applications, and its production via photocatalysis represents a highly ...
Zengyin He, Cui Li, Mingze Ni, Shu Lin, Kezhen Qi   +4 more
wiley   +1 more source

Sustainable Polymer Biocomposites for Food Packaging: Green Nanotechnology, Circular Plastic Upcycling and Smart Functional Materials

Packaging Technology and Science, Volume 39, Issue 9, Page 1141-1178, September 2026.
Graphical abstract showing the development of biodegradable polymer biocomposites reinforced with natural fibres, green nanoparticles and waste‐plastic upcycling pathways toward sustainable smart food packaging materials ABSTRACT The fundamental hypothesis behind this review is that the combination of biodegradable polymer‐based biocomposites, which ...
Chandra Sekhar Espenti, Jaewoong Lee
wiley   +1 more source

Photoalteration of macrophyte-derived chromophoric dissolved organic matter induces growth of single bacterial populations in a coastal lagoon

Journal of Limnology, 2013
Photochemical degradation is an important process involved in the decay of macrophytes, but little is known on the response of heterotrophic bacteria to the chromophoric dissolved organic matter (CDOM) derived from different plant species.
Claudia Piccini, Daniel Conde, Jakob Pernthaler, Ruben Sommaruga   +3 more
doaj   +1 more source