This report is an evaluation of the selenium removal from agricultural drainage water and synthetic solutions contaminated with high amounts of selenium. Batch and kinetic studies were conducted on the removal of selenium and the effectiveness of various remediation materials was determined. The agricultural drainage water samples were obtained from San Joaquin Valley and provided by Department...

Alumina is an important component of airborne dust particles as well as of building materials and soils found in the tropospheric boundary layer. While the uptake and reactions of oxides of nitrogen and their photochemistry on alumina have been reported in the past, little is known about the chemistry when organics are also present. Fourier transform infrared (FTIR) spectroscopy at ∼23 °C was u...

Rapid thermal treatments potentially allow for a significant reduction in production time of ceramic multilayered membranes, in turn aiding increased industrial application of these membranes and accelerating research on their development. Two methods are proposed for the rapid thermal treatment of thin supported inorganic membrane films. Both methods involve an instant increment in temperature...

It is of great importance to develop a spherical γ-alumina support with high hydrothermal stability be used in platinum reforming catalyst processes. The porous pseudo-boehmite powder surface area was first synthesized via simple separate nucleation and aging steps method, then as precursor produce γ-Al2O3 an oil–ammonia column method. as-synthesized has substantially greater specific 336.0 m2·...

The effects of residual water on the phase formation, composition, and microstructure evolution of magnetron sputter deposited crystalline alumina thin films have been investigated. To mimic different vacuum conditions, depositions have been carried out with varying partial pressures of H2O. Films have been grown both with and without chromia nucleation layers. It is shown that films deposited ...

We report an experimental study on confined systems formed by butyloxybenzylidene octylaniline liquid crystal (4O.8) + γ-alumina nanoparticles. The effects of the confinement in the thermal and dielectric properties of the liquid crystal under different densities of nanoparticles is analyzed by means of high resolution Modulated Differential Scanning Calorimetry (MDSC) and broadband dielectric ...

Cold Sintering Process has been applied to hydroxide precursors Al(OH)3, xH2O promote in situ reactive sintering. The application of sintering temperatures < 400°C led the release OH groups and partial crystallization into boehmite γ-AlOOH. This latter step is accompanied by a densification stage leading production dense translucent pellet. From skeletal density measurements, it appears that no...