Crystal structure and magnetic properties of the Cr-doped spiral antiferromagnet BiMnFe2O6
作者:Dmitry Batuk、Christopher De Dobbelaere、Alexander A. Tsirlin、Artem M. Abakumov、An Hardy、Marlies K. Van Bael、Martha Greenblatt、Joke Hadermann
DOI:10.1016/j.materresbull.2013.04.038
日期:2013.9
substitution of Cr for Mn in BiMnFesub2}Osub 6} is possible by the solution–gel method. • The BiCrsubx}Mnsub1−x}Fesub2}Osub 6} solid solution is obtained for the x values up to 0.3. • Increasing Cr content lowers the temperature of the antiferromagnetic ordering. - Abstract: We report the Crsup 3+} for Mnsup 3+} substitution in the BiMnFesub2}Osub 6} structure. The BiCrsubx}Mnsub1−x}Fesub
Enhanced Efficiency of Electron-Hole Separation in Bi<sub>2</sub>
O<sub>2</sub>
CO<sub>3</sub>
for Photocatalysis via Acid Treatment
作者:Yongchao Huang、Kunshan Li、Ying Lin、Yexiang Tong、Hong Liu
DOI:10.1002/cctc.201800101
日期:2018.5.9
defective Bi2O2CO3 microspheres via a simple nitric acidtreatment method. Upon generation from Bi2O2CO3, electrons and holes were superbly separated with the existence of defects. Combined with the advantages of multiple scattering and reflection, a large surface area and increased range of visible‐light absorption, the defective Bi2O2CO3 dispalyed a high efficiency for the photodegradation of HCHO
我们在这里通过简单的硝酸处理方法制备了有缺陷的Bi 2 O 2 CO 3微球。由Bi 2 O 2 CO 3产生时,电子和空穴被极好地分离,并存在缺陷。有缺陷的Bi 2 O 2 CO 3结合了多次散射和反射,较大的表面积以及增加的可见光吸收范围等优点,对HCHO气体和甲基橙的光解效率很高。有缺陷的Bi 2 O 2 CO 3还具有优异的稳定性,这对实际应用很重要。这项工作为设计和制造用于环境保护的高活性铋基光催化剂开辟了新的机会。
Highly Efficient CH Oxidative Activation by a Porous Mn<sup>III</sup>-Porphyrin Metal-Organic Framework under Mild Conditions
gas‐sorption isotherms. CZJ‐1 exhibits significantly high catalytic oxidation of cyclohexane with conversion of 94 % to the mixture of cyclohexanone (K) and cyclohexanol (A) (so‐called K–A oil) at room temperature. We also provided solid experimental evidence to verify the catalytic reaction that occurred in the pores of the M′MOF catalyst.
Force Microscopy. Energy Dispersive X-Ray Spectroscopy measurements were done in order to proceed chemical microanalysis. SecondHarmonicGeneration measurements showed strong effect of incorporated RE 3+ ions on the increasing second order nonlinear optical response of BZBO:RE 3+ powders.
摘要 采用改进的Pechini法首次合成了具有非中心对称结构的正交晶系硼酸铋锌(Bi 2 ZnB 2 O 7 ,BZBO)。与多晶粉末形式的所需化合物的常规固态合成相比,该方法允许减少该过程的持续时间和温度。使用这种方法成功地将选定的 RE 3+ 掺杂剂引入到 BZBO 基质中。对获得的材料进行了研究并进行了晶体学计算,以确认所制备的多晶的结构。使用原子力显微镜研究所得粉末的形态。进行能量色散 X 射线光谱测量以进行化学微量分析。
Efficient visible-light-driven Suzuki coupling reaction over Co-doped BiOCl/Ce-doped Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> composites
作者:Dan-Xia Zhao、Guo-Ping Lu、Chun Cai
DOI:10.1039/d0gc04206d
日期:——
The proposed mechanism of the photocatalytic Suzuki cross-coupling of bromobenzene and phenylboronic acid under visible-light irradiation.