Effects of N and/or S Doping on Structure and Photocatalytic Properties of BiOBr Crystals

Abstract

The BiOBr crystals doped with N and/or S have been prepared by a facile and rapid solvothermal method using urea and/or thiourea as doped resource. The morphologies and structures of the as-prepared samples were characterized by SEM, TEM, XRD, XPS and PL spectrum. Their electronic structures have been investigated and discussed using first principles based on the density functional theory. The photocatalytic properties of the products can be adjusted by the content and species of dopants.

Asymmetric faradaic assembly of Bi2O3and MnO2for a high-performance hybrid electrochemical energy storage device

“…38 Meanwhile, two other less prominent peaks at higher binding energy among the four deconvoluted peaks can be attributed to a slight surface charging effect from the polarization change in the crystal. 39,40 Moreover, the presence of oxygen species in the Bi 2 O 3 composition is corroborated by the deconvoluted peaks of the O 1s signal shown in Fig. 2b, which appear and are centered at binding energy values of 529.1, 530.6, and 531.7 eV.…”

Mechanism Study of the Blocking of Ladle Well Due to Sintering of Filler Sand

“…Three kinds of filler sands are widely used in steel ladles: silica sand, zircon sand, and chromite sand. The properties of the sand and their sintering behaviors were studied. Some of these works focused only on the sintering of sand, while some of them considered also the interaction between liquid steel and sand .…”

Effects of Temperature and Holding Time on the Sintering of Ladle Filler Sand with Liquid Steel

“…The sintering behavior of the sand was investigated by a number of researchers. [4][5][6][7][8][9][10] Some of them studied the sintering of sand in the absence of steel, [4][5][6] while some studied the interaction behavior between sand and liquid steel. [7][8][9][10] In a previous study by the present authors, [11] a comparison between the sintering behaviors with and without steel was carried out at 1873 K. It was found that the presence of liquid steel could enhance the sintering of the sand and that dissolved elements, e.g., Mn have great impact on the sintering behavior.…”

“…The sintering behavior of the sand was investigated by a number of researchers . Some of them studied the sintering of sand in the absence of steel, while some studied the interaction behavior between sand and liquid steel .…”