Relatively sharp chromium (3+) tracer electron paramagnetic resonance lines observed in alumina powders extracted from a chloride source solution are interpreted in terms of a narrow spread of λ=E/D values within 0.3 ⩽λ⩽ ...

The collisional alkali-ionization rate constants, ki, for an atmospheric-pressure CO/O2/N2 flame of well-known temperature (1930 K) and composition have been redetermined using the r.f. resonance method. The values of ki ...

CO adsorption on CaO and SrO takes place, as on MgO, via a disproportionation reaction leading to both surface carbonates and unusual surface species with a complex vibrational spectrum in the low-frequency range. These ...

Vapour pyrolysis of ethyl titanate has been performed in order to obtain thin TiO2 films. A selective deposition of rutile films is found to occur when substrate temperatures are below 500°C and the gas phase has a large ...

Blackwater rivers are enriched in humic acids and impoverished in nutrients, sometimes discharging into oceans. Brazil has a coastal zone of about 8700 km, with several blackwater rivers discharging into the Atlantic Ocean, ...

Carbon-based material is one of crucial activators in advanced oxidation processes (AOPs), however, some mysteries in the activation mechanisms are still awaiting researchers to reveal. In this study, mesoporous carbon ...

Microplastics (MPs) are increasingly recognized as interfacial substrates for microbial adhesion and metal adsorption in aquatic environments. However, the temporal sequence and causality of MPs-microbial-metal interactions ...

The frequency and intensity of flood disaster events are increasing. It is well documented that community flood vulnerability and impacts vary depending on household attributes. Nevertheless, vulnerable households in high ...

Riparian corridors though essential for sustaining riverine ecosystem services, face increasing degradation due to complex interactions between natural and anthropogenic pressures. A critical barrier to effective restoration ...

The transformation of biowaste into high-performance functional materials presents a promising strategy for sustainable environmental technologies. In this study, a novel biogenic carbon-based catalytic matrix (CBCM) was ...