A novel adsorbent of Na(2)Ta(2)O(6) porous microspheres with F(-) gradient concentration distribution: high cationic selectivity and well-regulated recycling

Preparation of Y2SiO5:Pr3+,Li and Na2NbxTa2−xO6/(Au/RGO) composites and investigation into visible-light driven photocatalytic hydrogen production

A three-component photocatalytic system is constructed by using Na₂Nb_xTa_2−xO₆ as the main catalyst, Y₂SiO₅:Pr³⁺,Li as the up-conversion luminescence agent and Au/RGO as the co-catalyst.

Practical Tantalum Coating of Microspheres for Experimental Visualization under Fluoroscopy and CT

The present report describes a simple technique for tantalum coating of microspheres for visualization by fluoroscopy and computed tomography (CT). Spherical microspheres were soaked with Ta powder under different conditions and microscopically evaluated for Ta-coating quality by assessing bound and unbound Ta. For 100-300-µm Embosphere particles, soaking with 0.05 mL Ta powder for 30 minutes and centrifugation at 500 rpm produced optimal coating. Optimized microspheres were injected in swine renal arteries and assessed by fluoroscopy and micro-CT for the opacification of segmental, arcuate, and interlobular arteries. This practical method can be used for experimental studies with commonly available microspheres.

New insights into fluorinated TiO2 (brookite, anatase and rutile) nanoparticles as efficient photocatalytic redox catalysts

In this paper, we develop a fluorination methodology and optimize various synthesis conditions. We also demonstrate that photocatalytic redox activity is affected by the synergistic effect between surface fluorination and phase structure.