Results 51 to 60 of about 8,405 (234)

Biogenic synthesis of palladium nanoparticles: New production methods and applications

open access: yesNanotechnology Reviews, 2022
Novel application of bio-Pd ...
Law Cindy Ka Y.   +4 more
doaj   +1 more source

Abiotic reductive dehalogenation of pharmaceuticals with naturally occurring redox mediators

open access: yesEnvironmental Advances
This preliminary study investigated whether a reductive dehalogenation of brominated, chlorinated and fluorinated pharmaceuticals is possible using redox mediators as found for iodinated x-ray contrast media.
Kerstin Gerundt   +2 more
doaj   +1 more source

Remediation of Polychlorinated Biphenyls (PCBs) in Contaminated Soils and Sediment: State of Knowledge and Perspectives

open access: yesFrontiers in Environmental Science, 2018
Polychlorinated biphenyls (PCBs) are one of the persistent organic pollutants (POPs) used worldwide between the 1930 and 1980s. Many PCBs can still be found in the environment such as in soils and sediments, even though their use has been heavily ...
Ran Jing   +2 more
doaj   +1 more source

Typical groundwater contamination in the vicinity of industrial brownfields and basic methods of their treatment

open access: yesEcotoxicology and Environmental Safety, 2022
The article deals with simple methods of decontamination of groundwater from the vicinity of brownfields contaminated with organic and inorganic substances.
Olga Solcova   +4 more
doaj   +1 more source

Iron-Catalyzed, Highly Regioselective Synthesis of alpha-Aryl Carboxylic Acids from Styrene Derivatives and CO2 [PDF]

open access: yes, 2012
The iron-catalyzed hydrocarboxylation of aryl alkenes has been developed using a highly active bench-stable iron(II) precatalyst to give alpha-aryl carboxylic acids in excellent yields and with near-perfect regioselectivity. Using just 1 mol % FeCl2, bis(
Greenhalgh, Mark D., Thomas, Stephen P.
core   +1 more source

Ultrasonic dehalogenation and toxicity reduction of trichlorophenol

open access: yesUltrasonics Sonochemistry, 2005
The study focussed on the effect of ultrasonic frequency and co-pollutants on dechlorination and toxicity reduction of a toxic model pollutant, i.e. 2,3,5-trichlorophenol (TCP). The effect of ultrasonic frequency on TCP degradation and chloride formation was studied at 41, 206, 360, 618, 1068, and 3217 kHz.
Tiehm, A., Neis, U.
openaire   +2 more sources

Polyhydroxyalkanoate as a slow-release carbon source for in situ bioremediation of contaminated aquifers: from laboratory investigation to pilot-scale testing in the field [PDF]

open access: yes, 2016
A pilot-scale study aiming to evaluate the potential use of poly-3-hydroxy-butyrate (PHB) as an electron donor source for in situ bioremediation of chlorinated hydrocarbons in groundwater was conducted.
Alesi, Eduard   +8 more
core   +1 more source

Oxide Interface of Gallium‐Based Liquid Metals: Beneficial Bridge or Hidden Risk?

open access: yesChemistryEurope, EarlyView.
Discussion on oxide interfaces in gallium‐based liquid metals have concentrated on their properties, behaviors, and related applications. However, the molecular mechanisms underlying effects, as well as the differences between the presence and absence of the oxide layer, have been less thoroughly discussed.
Yi Fan, Shuai Wang, Xu Hou
wiley   +1 more source

Versatile Palladium‐Catalyzed C‐H Arylation of Fluoroarenes with 2‐Chloropyridine Derivatives

open access: yesChemistry – A European Journal, EarlyView.
Direct C─H arylation of fluoroarenes with 2‐chloropyridines is enabled by a simple Pd/SPhos system in isopropyl acetate. The method uses inexpensive reactants and shows broad scope and high yields. DFT computations explain reactivity and selectivity.
Federico Belnome   +6 more
wiley   +1 more source

Microbial communities in polychlorinated biphenyl (PCB)-contaminated wastewater lagoon sediments: PCB congener, quantitative PCR, and 16S rRNA gene amplicon sequencing datasets

open access: yesData in Brief, 2021
The potential for aerobic and anaerobic microbial natural attenuation of PCBs in freshwater sediments is described by PCB congener, quantitative PCR, and 16S rRNA gene amplicon sequencing datasets generated, in duplicate, from 27 sediment samples ...
Timothy E. Mattes   +6 more
doaj   +1 more source

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