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Volatile organic compounds (VOCs) are growing pollutants now that cause air pollution and threaten human health. In this paper, the Grand Canonical Monte Carlo was used to simulate the adsorption performance of activated carbon on VOCs (benzene, toluene, acetone and methanol). After simulating different pore sizes (0.902 nm,1.997 nm,3 nm and 4 nm) adsorption performances of activated carbon, activated carbon with a pore size of 1.997 nm was selected to further study the influence of functional groups (carboxyl, amino, hydroxyl and hydrogen), and the capillary condensation was explained by the Kelvin equation. Furthermore, effects of functional groups under saturated vapor pressure (P) of VOCs that range from 0 to 0.1 P were explained by the accessible volume and intermolecular interaction potential, respectively. Under pressure range of 0-0.1 P, at the beginning of adsorption of acetone and methanol, carboxyl and amino groups could reduce the threshold pressure while hydroxyl and hydrogen have the opposite effect. For benzene and toluene, all functional groups have little effect on the threshold pressure, and they reduce the adsorption capacity instead. It could be concluded that the activated carbon could achieve the best adsorption effect on acetone and methanol, on the contrary, the addition of functional groups on benzene and toluene will weaken their adsorption performance.
This article was published in the following journal.
Waste biomass and sewage sludge were used to obtain an adsorbent material with excellent performance qualities by adopting a KOH activation process via one-stage (AC) or two-stage (AC) co-pyrolysis. T...
On-chip micro-supercapacitors (MSCs) are attracting great attentions recently. However, the performance of MSC is usually unsatisfactory due to the unreasonable pore structure. The construction of thr...
Fabrication of high-performance electrodes from waste biomass has attracted increasing attention among the energy storage and conversion field. In this work, we have synthesized nitrogen-doped activat...
Activated carbon and biochar were obtained from chicken bone (CB), characterized, and applied to remove basic fuchsine from aqueous media. The adsorbent dosage and pH effects were studied, as well as ...
Nanostructured carbons with different pore geometries are prepared with a liquid-free nanocasting method. The method uses gases instead of liquid to disperse carbon precursor, leach templates and remo...
The purpose of this randomized, prospective study is to evaluate how this activated carbon dressing affects the total bacterial load and biofilm in a wound bed in wounds of the lower extre...
The study investigates the performance of a new dialyzer (Theranova 400) containing a membrane with increased pore sizes. The performance will be determined by the removal of middle molecu...
The study's hypothesis is that HD with large pore dialyzers remove to the dialysate iron which is bound to potentially dialyzable ligands, after it's release from intravenous iron compound...
Endovascular repair of infrarenal abdominal aortic aneurysms (AAA) requires a contrast agent to identify the vascular anatomy and placement of the stent graft. Iodine contrast has traditi...
The purpose of this study is to evaluate the safety and tolerability of two carbon monoxide doses when administered as an inhaled gas for 1 hour in patients receiving kidney transplants.
Educational programs structured in such a manner that the participating professionals, physicians, or students develop an increased awareness of their performance, usually on the basis of self-evaluation questionnaires.
A c-jun amino-terminal kinase that is activated by environmental stress and pro-inflammatory cytokines. Several isoforms of the protein with molecular sizes of 43 and 48 KD exist due to multiple ALTERNATIVE SPLICING.
A c-jun amino-terminal kinase that is activated by environmental stress and pro-inflammatory cytokines. Several isoforms of the protein with molecular sizes of 48 and 54 KD exist due to multiple ALTERNATIVE SPLICING.
The pore-forming subunit of calcium release activated calcium channels. It is activated by STROMAL INTERACTION MOLECULE 1 upon intracellular calcium depletion.
A subgroup of cyclic nucleotide-regulated ION CHANNELS of the superfamily of pore-loop cation channels that are opened by hyperpolarization rather than depolarization. The ion conducting pore passes SODIUM, CALCIUM, and POTASSIUM cations with a preference for potassium.