Results 61 to 70 of about 2,154 (122)

Dual C-Br Isotope Fractionation Indicates Distinct Reductive Dehalogenation Mechanisms of 1,2-Dibromoethane in Dehalococcoides- and Dehalogenimonas-Containing Cultures. [PDF]

open access: yesEnviron Sci Technol, 2023
Palau J   +9 more
europepmc   +1 more source

Achieving Diverse Functionalizations of Electron‐Deficient Aryl Halides via Carbonate‐Mediated Electron‐Donor–Acceptor Complexes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
We report a simple and practical electron donor–acceptor complex‐mediated method that employs inexpensive carbonate bases to activate electron‐deficient aryl iodides and bromides. The protocol enables diverse transformations, including arylation, dehalogenation, deuteration, chalcogenation, and borylation, providing a versatile platform for the ...
Krishnakumar Sachidanandan   +3 more
wiley   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar   +3 more
wiley   +1 more source

Sol-Gel Heterogeneization of an Ir(III) Complex for Sustainable Visible-Light Redox Photocatalysis

open access: yesMolecules
Photocatalysis is a key strategy for the development of sustainable solar-driven chemical processes. In this work, we report the synthesis and characterization of a novel organometallo–ionosilica material derived from the self-condensation of an ...
Janira Herce   +4 more
doaj   +1 more source

A Coupled Adsorption–Biodegradation (CAB) Process Employing a Polyhydroxybutyrate (PHB)–Biochar Mini Pilot-Scale Reactor for Trichloroethylene-Contaminated Groundwater Remediation

open access: yesBioengineering
Actions for improving water quality are critical and include the remediation of polluted groundwater. The effectiveness of the remediation strategy to remove contamination by chlorinated solvents may be increased by combining physicochemical treatments ...
Laura Lorini   +5 more
doaj   +1 more source

Reductive Transformations of Anthropogenic Chemicals in Natural and Technical Systems

open access: yesCHIMIA, 1997
Reductive transformation reactions of chemical pollutants (e.g., polyhalogenated hydrocarbons, aromatic azo and nitro compounds, chromium(VI) species) in the environment are important both from an ecotoxicological and from an environmental ...
René P. Schwarzenbach   +4 more
doaj  

Modulating Iron Crystals with Lattice Chalcophile‐Siderophile Elements for Selective Dechlorinations Over Hydrogen Evolution

open access: yesAdvanced Science
Selective dechlorination of organic chlorides over hydrogen evolution reaction (HER) remains a challenge because of their coincidence. Nanoscale zerovalent iron (nFe0) draws a promising picture of in situ groundwater dechlorination, but its ...
Xiaohong Hu   +10 more
doaj   +1 more source

Combining microcosm biodegradation and reactive transport modeling to explore the feasibility of ATES-bioremediation approaches

open access: yesFrontiers in Water
This study presents a process-based model analysis of non-isothermal biodegradation of chlorinated ethenes in batch microcosm setups and field-scale remediation, combining Aquifer Thermal Energy Storage with in situ bioremediation (ATES-ISB).
Henning Wienkenjohann   +6 more
doaj   +1 more source

Burning question: Rethinking organohalide degradation strategy for bioremediation applications

open access: yesMicrobial Biotechnology
Organohalides are widespread pollutants that pose significant environmental hazards due to their high degree of halogenation and elevated redox potentials, making them resistant to natural attenuation.
Qihong Lu, Qi Liang, Shanquan Wang
doaj   +1 more source

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