从电废水中逐步生物制造CuMnS:双金属 - 硫的协同作用,增强过氧单硫酸盐激活
相关实验视频
Updated: Jan 23, 2026

16:38
Bridging the Bio-Electronic Interface with Biofabrication
Published on: June 6, 2012
17.3K
Xian-Zhong Fu1, Yong-Qiang Ma2, Xiao-Jing Zhao2
1School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Xinyu Environmental Sci-Tech Co., Ltd., Hefei 230051, China.
Bioresource technology
|January 21, 2026
概括
从重金属废水中微生物合成的铜二金属硫化物催化剂有效降解四环素化物. 这种可持续的方法为处理含有抗生素的工业废水提供了可行的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
背景情况:
- 对于抗生素降解的催化剂的传统合成面临着金属毒性和复杂化等挑战.
- 重金属废水的微生物回收利用为催化剂制造提供了一个可持续的替代方案.
- 谢瓦尼拉 (Shewanella oneidensis) MR-1是一种适合生物合成硫化金属催化剂的微生物.
研究的目的:
- 从重金属废水中开发铜二金属硫化物 (bio-CuMnSs) 的逐步生物合成策略.
- 为了评估生物CuMnSs在激活四环素化物 (TCH) 降解的过氧硫酸盐 (PMS) 的效率.
- 研究催化机制并评估催化剂在真实废水场景中的性能.
主要方法:
- 使用Shewanella oneidensis MR-1与重金属废水的生物CuMnSs的逐步生物合成.
- 合成的生物CuMnSs的特征和与化学合成对应物的比较.
- 使用PMS激活,机械学研究 (激素清除,XPS) 和在各种条件下 (pH,水矩阵,真实废水) 的性能评估的四环化物降解实验.
主要成果:
- 逐步生物合成策略保持了高细胞活力,并产生了统一的生物-CuMnSs纳米粒子.
- 通过PMS激活,Bio-CuMnSs在60分钟内通过PMS激活实现了96%的TCH降解,性能优于化学合成.
- 降解主要是由表面结合的激素和单点氧驱动的,由双金属硫协同作用和活性部位的有效再生支持.
- 生物CuMnS/PMS系统在广泛的pH范围 (5-11) 和复杂的矩阵中表现出稳定性,包括真实电废水.
结论:
- 逐步微生物合成是一种有效的方法,可以从重金属废水中产生高效的催化剂.
- 生物CuMnS在激活PMS以降解抗生素方面表现出色,这是由协同效应驱动的.
- 这种方法可以同时利用重金属和抗生素处理废水,提供可持续的环境解决方案.
更多相关视频
相关概念视频
The Sulfur Cycle
51.8K
Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...
51.8K
Sulfur Assimilation
334
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
334
Chirality at Nitrogen, Phosphorus, and Sulfur
6.9K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
6.9K
Self-Evaluation: Self-Enhancement and Self-Verification
5.7K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.7K
Bioavailability Enhancement: Drug Solubility Enhancement
229
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
229
Bioavailability Enhancement: Drug Permeability Enhancement
194
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
194

