通过非对称的轨道杂交在Ni-doped Co3O4中转换旋转状态,以促进单片氧气生成用于微生物消毒
Meilin Duan1, Chao Huang2, Gong Zhang3
1Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao, 266071, P.R. China.
Angewandte Chemie (International ed. in English)
|January 25, 2024
概括
用添加的氧化物 (Ni-Co3O4) 增强单点氧 (1O2) 产生,有效消毒. 这种电催化方法使水和空气中的细菌失活,提供了一种新的消毒策略.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 单点氧 (1O2) 对于消毒至关重要,但通过电催化产生其具有挑战性.
- 开发高效的电催化方法来生产1O2对于环境和生物医学应用至关重要.
研究的目的:
- 开发一种简单的方法来提高单点氧 (1O2) 产量,使用兴奋剂和旋转状态过渡.
- 研究Ni-Co3O4增强1O2生成的机制及其抗菌功效.
主要方法:
- (Ni) 化成氧化物 (Co3O4),以产生Ni-Co3O4.4.
- 磁性分析和理论计算,以了解旋转状态过渡.
- 1O2的电催化生成及其在细菌无活化中的应用.
主要成果:
- 尼诺引发了Co3O4中低到高的旋转状态过渡,增强了1O2生成的催化活性.
- 在中性条件下,Ni-Co3O4在5分钟内有效地无活化了グラム阴性大肠杆菌 (1x10^6 CFU/mL).
- 由Ni-Co3O4产生的1O2引起了细胞膜损伤和DNA降解,导致了不可逆转的细菌死亡.
结论:
- 一种Ni化转换的旋转状态过渡方法有效地增加了用于消毒的1O2生成.
- Ni-Co3O4显示出在废水和生物气溶中的细菌无活化的显著潜力.
- 这项工作提供了一个设计高旋转电催化剂的策略,用于在消毒过程中增强1O2生产.
更多相关视频
10:21Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
8.4K
10:57Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
18.2K
相关概念视频
01:07Nuclear Overhauser Enhancement (NOE)
692
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the Nuclear Overhauser Enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring...
692
02:42Valence Bond Theory
8.6K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.6K
01:25Deactivation Processes: Jablonski Diagram
661
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
661
03:51Molecular Orbital Theory II
19.2K
Molecular Orbital Energy Diagrams
19.2K
03:02Colors and Magnetism
11.7K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.7K
01:03Atomic Nuclei: Nuclear Spin State Overview
952
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
952