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To better understand the mechanisms regarding effects of the interactions between organic contaminants (ORCs) and carbonaceous materials (CMs) on bioavailability of ORCs, 22 mg/kg of phenanthrene and nitrobenzene were spiked onto various CMs, and their microbial mineralization by the bacterium Mycobacterium vanbaalenii PYR-1 was investigated. The results showed that as sorption of phenanthrene and...
Molecular dynamics simulations with the adaptive intermolecular reactive bond order (AIREBO) potential are performed to study the high-temperature (T) behavior of monolayer graphyne and graphdiyne (MGY and MGDY). During the melting process, MGY and MGDY undergo three continuous phase transitions: (i) transformation into the initial amorphous graphene phase (AGP) starting from 2800 to 2500 K for MGY...
Impact of humic acid (HA) coating on biochar properties and the associated influence on naphthalene (Naph) sorption were studied. Coating with HA evidently decreased the sorption capacity and isotherm nonlinearity of Naph by the biochars, resulting from their chemical composition and surface property changes. At low solute concentrations, the suppression of HA coating on Naph sorption was primarily...
An acetylated softwood kraft lignin was dry-spun into precursor fibers and successfully processed into carbon fibers with a tensile strength exceeding most values reported in prior studies on lignin-based carbon fibers. Limited acetylation of lignin hydroxyl groups enabled dry-spinning of the precursor using acetone (solvent) followed by thermo-oxidative stabilization. Resulting carbon fibers (∼7μm...
Two kinds of new morphology of carbon nanomaterials, carbon nanocables and branched-nanobelts can been produced by pyrolyzing ethylene glycol monvethyl ether (CH 3 CH 2 OCH 2 CH 2 OH) with Fe as catalyst at 650–700°C. The carbon nanocables are made of two parts, the interior carbon nanowires encapsulated in the outer carbon nanotubes. For the nanocables, HRTEM images...
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