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Updated: Jun 22, 2025

A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation
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A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation

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结合雌激素的降解在可见光驱动的密切合的光催化和生物降解系统中

Xiangwei Ding1, Qingmiao Yu2, Hongqiang Ren1

  • 1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, China.

Bioresource technology
|June 28, 2024
PubMed
概括

可见光驱动的密切合光催化和生物降解 (VDICPB) 有效地去除17β-雌二醇3-硫酸盐 (E2-3S). 这种综合方法分解了类固醇结构,优于废水处理的单个方法.

关键词:
结合性雌激素的结合性雌激素.雌激素效应 雌激素效应亲密地结合在一起.微生物的反应反应变化 转化 转化 转化

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Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
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Cycloaddition Reactions: MO Requirements for Photochemical Activation

Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
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