Isobaric vapor–liquid equilibria of the binary mixtures toluene + styrene at 30 and 40 kPa α-methylstyrene 20 25 were measured applying a recirculation still. The equilibrium data modeled adopting non-random two-liquid (NRTL) excess Gibbs energy model with RK (Redlich–Kwong) equation state. NRTL interaction parameter optimization was carried out employing own literature for system. applied corr...

Sensitivity of polymeric microdisks is evaluated for selected compounds in their vapor phase such as humidity, isopropanol, toluene, limonene, 1-butanol, and pentanoic acid (valeric acid). Among these compounds, exhibits the highest sensitivity (23 pm/ppm) with a limit detection estimated to be around 0.6 ppm. We are interested contribution geometry deformation due polymer swelling on it may en...

Hydrothermally synthesized carbon nanodots (CDs) were impregnated on TiO2. The product (CDs/TiO2) was mechanically mixed with zeolite Y for application in toluene photocatalytic oxidation reaction under UV radiation. Material properties of the samples investigated by different methods. Toluene vapor chosen as a typical volatile organic compound to investigate performance CDs/TiO2 – photocatalys...

The effects of groundwater table fluctuation (GTF) on the remediation a petrochemically polluted riverside using soil vapor extraction (SVE) were investigated. migration and transformation benzene, toluene, ethylbenzene, o-xylene (BTEX) in cases natural attenuation, SVE without GTF, with GTF simulated TMVOC model. results showed that optimized well pressure influencing radius target site 0.90 a...

Many gas-phase biosensors have been developed for human volatiles (acetone, methyl mercaptan, trimethylamine, ethanol, isopropanol, etc.) and residential harmful VOCs (formaldehyde, toluene, nicotine) causing some diseases. A novel gas-imaging system by biofluorometry with an enzyme immobilized mesh was investigated to demonstrate spatiotemporal (i.e., ethanol acetaldehyde after drinking). biof...

Atmospheric aerosols exert a substantial influence on climate, ecosystems, visibility, and human health. Although secondary organic aerosols (SOA) dominate fine-particle mass, they comprise myriad compounds with uncertain sources, chemistry, and interactions. SOA formation involves absorption of vapors into particles, either because gas-phase chemistry produces low-volatility or semivolatile pr...