Track topics on Twitter Track topics that are important to you
In this work, we investigate the molecular composition and nanostructure of gasification charcoal (biochar) by comparing it with heat-treated fullerene arc-soot. Using ultrahigh resolution Fourier transform ion-cyclotron resonance and laser desorption ionisation time of flight mass spectrometry, Raman spectroscopy and high resolution transmission electron microscopy we analysed charcoal of low tar content obtained from gasification. Mass spectrometry revealed no magic number fullerenes, such as C or C, in the charcoal. The positive molecular ion m/z 701, previously considered a graphitic part of the nanostructure, was found to be a breakdown product of pyrolysis and not part of the nanostructure. A higher mass distribution of ions similar to that found in thermally treated fullerene soot indicates that they share a nanostructure. Recent insights into the formation of all carbon fullerenes reveals that conditions in charcoal formation are not optimal for fullerenes to form, but instead curved carbon structures coalesce into fulleroid-like structures. Microscopy and spectroscopy support such a stacked, fulleroid-like nanostructure, which was explored using reactive molecular dynamics simulations.
This article was published in the following journal.
Name: Environmental science & technology
To investigate the role of adsorption by biochar and biodegradation by bacteria in the wastewater treatment system of microorganisms immobilized on biochar, Nonylphenol (NP) removal (adsorption + de...
Compared to pyrolysis biochar (PBC), gasification biochar (GBC) differs in both composition and surface functionalities due to the use of an oxidizing purging gas. This work compares the effect of usi...
Excess heavy metal concentrations in mining areas is a worldwide problem due to their toxicity and persistence. Applying amendments to those areas is a cost-effective remediation technique that would ...
The gasification reactivity of coal and corn stalks co-pyrolyzed char is studied using thermogravimetric analysis, and the influence of co-pyrolysis on co-gasification reactivity is quantitatively cha...
In this study, the gas release rate and gas composition in the steam gasification of blends of anthracite coal and spirit-based distillers' grains (SDG) with mass ratios of 3:1, 1:1, and 1:3 were stud...
Phenytoin is a medicine used to treat seizures. If too much is taken, patients have ill effects including sleepiness, unsteady gait, and eye problems. The amount of drug in their system ca...
This was a Phase I study in 12 healthy male participants to compare the pharmacokinetic properties of CG5503 (how it is taken up and excreted from the body) after 2 minutes intravenous (i....
The PK of tiotropium is compared after orally administered tiotropium capsule with and without concomitant oral activated charcoal administration. The efficiency of the charcoal block meth...
Primary Objective: To assess the absolute bioavailability of sotagliflozin via administration of an intravenous (IV) microdose of a 14C-sotagliflozin tracer on top of a single oral dose o...
This open-label, two period crossover study will evaluate the effect of multiple doses of activated charcoal on the pharmacokinetics of a single oral dose of RO4995819 in healthy volunteer...
An amorphous form of carbon prepared from the incomplete combustion of animal or vegetable matter, e.g., wood. The activated form of charcoal is used in the treatment of poisoning. (Grant & Hackh's Chemical Dictionary, 5th ed)
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight 12.011. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.
Adsorption of substances from the gastrointestinal tract onto an orally administered sorbent medium like activated charcoal. This technique is used to eliminate toxic and some biologically active substances and serves to modify the lipid and amino acid spectrum of the intestinal contents.
Removal of toxins or metabolites from the circulation by the passing of blood, within a suitable extracorporeal circuit, over semipermeable microcapsules containing adsorbents (e.g., activated charcoal) or enzymes, other enzyme preparations (e.g., gel-entrapped microsomes, membrane-free enzymes bound to artificial carriers), or other adsorbents (e.g., various resins, albumin-conjugated agarose).