Results 51 to 60 of about 486,367 (311)

Bio‐Inspired Cascade Photocatalysis on Fe Single‐Atom Carbon Nitride Upcycles Plastic Wastes for Effective Acetic Acid Production

open access: yesAdvanced Energy Materials, EarlyView.
This work demonstrates a novel cascade photocatalysis concept using Fe single‐atom catalysts (Fe@C3N4 SAC) to directly upcycle plastics (PET, PP, PE, PVC) into valuable acetic acid at ambient conditions. Inspired by microbial degradation, the bifunctional cascade photocatalyst combines Fenton‐like oxidation and CO2 photoreduction, as validated by ...
Wei Wei   +21 more
wiley   +1 more source

Chlorinated hydrocarbons in beef, cow liver and milk products and total mercury in cow liver

open access: yesAgricultural and Food Science, 1975
The chlorinated hydrocarbons used in pesticides and PCB-compounds (polychlorinated biphenyls) were determined in domestic and imported beef (79 samples), cow liver (195 samples), butter (112 samples), cheese (93 samples) and milk powder (58 samples ...
Hilkka Tyllinen   +2 more
doaj  

Environmental Behavior, Sources, and Effects of Chlorinated Polycyclic Aromatic Hydrocarbons

open access: yesThe Scientific World Journal, 2007
The environmental sources and behaviors of chlorinated 2- to 5-ring polycyclic aromatic hydrocarbons (ClPAHs). ClPAHs are ubiquitous contaminants found in urban air, vehicle exhaust gas, snow, tap water, and sediments.
Takeshi Ohura
doaj   +1 more source

Contamination of agricultural products with pesticide residues in the period 1996 – 1998 – comparison with the period 1987 – 1995

open access: yesActa Agriculturae Slovenica, 2000
In the period 1996 – 1998, 348 samples of different plants (potato, grapes, maize, apples, carrots, lettuce, cabbage) were collected directly from their growth places.
Gregor UREK, Ana GREGORČIČ
doaj   +1 more source

Exploring the World of Double Nanohoops

open access: yesAngewandte Chemie International Edition, EarlyView.
As two conjugated nanohoops covalently linked by a central unit, double nanohoops are a relatively new class of strained nanocarbons with different properties to single nanohoops. This review gives an overview of all reported double nanohoops, categorizing their structures, syntheses, and discussing properties and applications. Creativity and synthetic
Luisa Rzesny   +2 more
wiley   +1 more source

Composition of Hydrocarbons in Diamonds, Garnet, and Olivine from Diamondiferous Peridotites from the Udachnaya Pipe in Yakutia, Russia

open access: yesEngineering, 2019
Volatile components in diamonds, associated garnet (pyrope), and olivine from two extremely rare xenoliths of diamondiferous peridotites recovered from the Udachnaya kimberlite pipe in Yakutia, Russia, were analyzed by gas chromatography–mass ...
Nikolay V. Sobolev   +3 more
doaj   +1 more source

Evaluation of Air Inlet Configuration's Effect on Biochar Properties From African Mesquite Pod Carbonization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The suboptimal efficiency of current biomass conversion processes necessitates the optimization of biochar production methodologies to enhance desired biochar characteristics. In this study, an investigation was conducted to determine the optimal air inlet configuration within a top‐lit updraft gasifier system for enhancing biochar properties ...
Adewale George Adeniyi   +6 more
wiley   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem   +4 more
wiley   +1 more source

Advances in Activated Persulfate Oxidation for Remediation of Soil and Groundwater

open access: yesRevista Águas Subterrâneas, 2013
Over the past several years, activated persulfate oxidation has been demonstrated as an effective tool for the in situ and ex situ treatment of contaminated soils and groundwater.
PHILIP BLOCK, JIM MUELLER
doaj  

Application of Subcritical Water to Dechlorinate Polyvinyl Chloride Electric Wires

open access: yesEnergies, 2018
Polyvinyl chloride (PVC) electric wires were subjected to dechlorination in subcritical water at three different temperatures in a high-pressure reactor. About 2.09, 73.08, and 95.96 wt % of chlorine in PVC wires was removed during dechlorination at 200 &
Aurora Soler   +2 more
doaj   +1 more source

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