2015年11月12日 · Developing high-performance photocatalytic materials is of huge significance and highly desirable for fulfilling the pressing need in environmental remediation. In this work, we demonstrate the use of bismuth nitrate Bi2O2(OH)(NO3) as an absorbing photocatalyst, which integrates multiple superiorities, like

2011年7月21日 · A new noncentrosymmetric (NCS) and polar material containing two lone-pair cations, Bi3+ and I5+, and exhibiting an Aurivillius-type (Bi2O2)2+ layer has been synthesized and structurally characteri...

2021年6月14日 · In this Perspective, we systematically review the progress on preparation methods of 2D [Bi 2 O 2]-based layered materials, discuss the strengths and drawbacks of different methods, and give an outlook toward future research directions.

2024年1月15日 · In this study, an efficient piezo-photocatalytic system was developed in Bi 2 O 2 (OH)NO 3 /BiOI heterojunction by collaborating with interfacial electric field and vibration-induced piezoelectric polarization.

2020年11月1日 · Ultrathin Bi 2 O 2 (OH) (NO 3)/BiOBr microspheres with high specific surface area. The incorporation of Bi 2 O 2 (OH) (NO 3) improved the photocatalytic activity. The formation of Bi 2 O 2 (OH) (NO 3)/BiOBr composite is proposed by SEM images. O 2− and photogenerated holes dominate as main reactive species.

2023年4月1日 · In this paper, by combining detailed experimental and modeling techniques, we report on the unique potential of CaBi2 Nb 2 O 9 (CBN) platelets that can couple both piezo- and photo- multi-field effects to overcome these issues and realize high-efficiency hydrogen production and dye degradation.

Bi2O2 [BO2 (OH)] nanosheets having an internal polar electric field in the crystal structure were synthesized by a one-step hydrothermal method. Due to the existence of the internal polar electric field, the separation of photoinduced carriers can be enhanced, resulting in …

2005年3月1日 · Bi 2 O 2 (OH) (NO 3) is the first bismuth oxynitrate containing [Bi 2 O 2] 2+ layers for which the crystal structure has been determined. The current study presents its synthesis, formula determination using powder XRD, thermogravimetric analysis and nitrate assay, and finally, crystal structure refinement from twinned crystals.

2017年4月16日 · 近日，北京大学彭海琳教授（通讯作者）在Nature Nanotechnology上发表了一篇题为 “High electron mobility and quantum oscillations in non-encapsulated ultrathin semiconducting Bi2O2Se” 的文章。 在该文中，报道了一种通过化学气相沉积法 (CVD)外延生长半导体Bi2O2Se薄膜的方法。 通过此法制得的Bi2O2Se晶体具有特殊的层状结构：以共价键结合的二维Bi2O2层通过微弱的静电相互作用夹在两层Se原子点阵中。 此外，该Bi2O2Se薄膜材料还 …

2023年1月25日，化学一区顶刊 Applied Surface Science 在线发表了 四川师范大学段满益教授团队 题为“The electronic and optical properties of multi-layer Bi2O2X (X = S, Se, Te) by first-principles calculations ”的报告。 该项研究使用 VASP 进行 第一性原理计算。 石墨烯和 MoS2 等二维材料 因其 优异的电子和光电特性 而被广泛研究。 具有 高载流子迁移率 和 中等带隙 的材料越来越 受到关注。 然而， 它们在实际应用中却存在局限性。 例如， 石墨烯 是一种具有 卓越的 …