Results 81 to 90 of about 7,001 (209)

Efficient Photocatalytic Degradation of CI Reactive Red 195 Using UV‐C/ZnO Heterogeneous System: Process Optimization and Degradation Kinetics

ChemCatChem, Volume 18, Issue 8, 28 April 2026.
Proposed photocatalytic degradation pathway of CI Reactive Red 195 under UV‐C/ZnO irradiation, constructed based on combined LC–MS/MS and FTIR evidence. The pathway illustrates stepwise azo‐bond cleavage, formation of transient aromatic intermediates, and subsequent oxidation toward low‐molecular‐weight species and mineralization products.
Betül Çiçek Özkan, Veyis Selen, Gülbeyi Dursun   +2 more
wiley   +1 more source

Revisiting the disappearance of terrestrial dissolved organic matter in the ocean: a δ¹³C study [PDF]

Biogeosciences, 2014
Organic carbon (OC) depleted in 13C is a widely used tracer for terrestrial organic matter (OM) in aquatic systems. Photochemical reactions can, however, change δ13C of dissolved organic carbon (DOC) when chromophoric, aromatic-rich terrestrial OC is ...
K. Lalonde, A. V. Vähätalo, Y. Gélinas   +2 more
doaj   +1 more source

Removal of terrestrial DOC in aquatic ecosystems of a temperate river network [PDF]

, 2015
Surface waters play a potentially important role in the global carbon balance. Dissolved organic carbon (DOC) fluxes are a major transfer of terrestrial carbon to river systems, and the fate of DOC in aquatic systems is poorly constrained.
Aiken, G. R., Butler, K. D., Morse, N. B., Salisbury, Joseph E., Stewart, Robert J., Wollheim, Wilfred M.   +5 more
core   +3 more sources

Transparent Anthocyanin–PVA Indicator Films for Real‐Time pH Sensing and Food Freshness Monitoring

Macromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.
Red cabbage anthocyanin–loaded poly(vinyl alcohol) films combine high transparency, pH‐responsive color change, and long‐term photostability, acting as free‐standing headspace indicators for real‐time freshness monitoring of packaged milk and seafood.
Mariagiovanna Benvenuto, Giovanni Desiderio, Alfredo Pane, Franco Cofone, Massimo La Deda, Oriella Gennari   +5 more
wiley   +1 more source

Chemodiversity of dissolved organic matter in the Amazon Basin [PDF]

, 2016
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detailed chemical classification of the abundant and ubiquitous dissolved organic matter (DOM), beyond specific indicator compounds and bulk measurements, has ...
Bastos, Wanderley, Bastviken, David, Enrich-Prast, Alex, Gonsior, Michael, Harir, Mourad, Hertkorn, Norbert, Luek, Jenna L., Schmitt-Kopplin, Philippe, Valle, Juliana   +8 more
core   +1 more source

Coral δ13C Reveals Little Ice Age Dimming of Tropical Surface Shortwave Radiation Not Captured by Climate Models

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Tropical low‐cloud feedback is the largest source of uncertainty in climate sensitivity, yet multi‐century records of surface shortwave radiation are scarce. We calibrate Porites coral δ13C against satellite photosynthetically available radiation (PAR) and reconstruct monthly PAR for the northern South China Sea during the Medieval Climate ...
Guangchao Deng, Huimin Guo, Xuefei Chen, Jian‐xin Zhao, Gangjian Wei, Wenfeng Deng   +5 more
wiley   +1 more source

Soil quality degradation under seawater intrusion: chemical, spectral, and dielectric insights

Discover Soil
Soil salinization caused by seawater intrusion is a growing global concern that impacts agricultural productivity and soil sustainability. This study aimed to assess how saltwater intrusion influences the chemical, mineralogical, and electrical ...
Ajay L. Vishwakarma, Shruti O. Varma, Ajay Chaudhari, M. R. Sonawane   +3 more
doaj   +1 more source

High photoreactivity of chromophoric dissolved organic matter derived from Ulva prolifera and Sargassum

Frontiers in Marine Science
The epipelagic macroalgae of Ulva prolifera and Sargassum are the primary contributors to widespread seaweed tides globally. Both ocean plants release large amounts of chromophoric dissolved organic matter (CDOM) into the surrounding seawater.
Yong Zhang, Yong Zhang, Kaili Fang, Mengmeng Liu, Jihua Liu, Jihua Liu, Xiaobo Zhao, Weidong Zhai, Hongsheng Zhang, Xiaotong Wang, Huixiang Xie   +10 more
doaj   +1 more source

Dissolved Organic Matter Dynamics in the Oligo/Meso-Haline Zone of Wetland-Influenced Coastal Rivers [PDF]

, 2014
Wetlands are key components in the global carbon cycle and export significant amounts of terrestrial carbon to the coastal oceans in the form of dissolved organic carbon (DOC).
Cawley, Kaelin M., Jaffe´, Rudolf, Maie, Nagamitsu, Melling, Lulie, Sekiguchi, Satoshi, Shima, Eikichi, Tsitsuki, Kiyoshi, Watanabe, Akira, Yamashita, Youhei   +8 more
core   +1 more source

Urea‐Formaldehyde Resin Confined Silicon Nanodots Composites: High‐Performance and Ultralong Persistent Luminescence for Dynamic AI Information Encryption

Advanced Science, Volume 13, Issue 17, 23 March 2026.
Schematic illustration of SiNDs composite materials synthesis and its internal photophysical process mechanism. And an AI‐assisted dynamic information encryption process. ABSTRACT Persistent luminescence materials typically encounter an intrinsic trade‐off between high phosphorescence quantum yield (PhQY) and ultralong phosphorescence lifetime.
Yulu Liu, Lei Cao, Lele Gao, Panyong Wang, Qiannan You, Xinpei Pang, Li Li, Mingzheng Jia, Wen‐Fei Dong, Minghui Zan   +9 more
wiley   +1 more source