The transformation of several mono- and dinitroaromatic compounds (tested at 50-200 microM) by methanogenic bacteria, sulphate-reducing bacteria and clostridia was studied. Some of the nitroaromatics tested were transformed chemically by 1.5 mM quantities of culture media reducing agents, like cysteine or sulphide. This abiotic reduction occurred at the o-nitro-groups preferentially. Nitropheno...

Atmospheric brown carbon (BrC) is a significant contributor to light absorption and climate forcing. However, little is known about a fundamental relationship between the chemical composition of BrC and its optical properties. In this work, light-absorbing secondary organic aerosol (SOA) was generated in the PNNL chamber from toluene photo-oxidation in the presence of NOx (Tol-SOA). Molecular s...

The present investigation deals with the importance of interaction and position nitro group in adsorptive removal 2-nitrophenol (2-NP), 4-nitrophenol (4-NP) phenol by demineralized kraft lignin activated carbon (DKLAAC). adsorption NPs on DKLAAC was found to follow order 2-NP > 4-NP phenol. In this study, both solubility donor–acceptor complex mechanism played an important role besides poros...

Nitrophenolic compounds are hazardous substances, listed as priority pollutants by World Health Organization, due to their toxicity on both the environment and human health. They used in agriculture insecticides fungicides they can contaminate water reserves filtering through soil into groundwater. Therefore, these substances must be removed from agricultural wastewater before being discharged....

In this study, a simple and environment-friendly method has been successfully applied for the production of silver nanoparticles (AgNPs) using Poria cocos extract. The reaction time 60 min, temperature 90 °C, ion concentration 2.0 mM were identified as best condition PC-AgNPs fabrication. XRD analysis confirmed highly crystalline face-centered cubic structure biosynthesized material. presented ...