photooxidation

简明释义

英[ˌfəʊtəʊˌɒksɪˈdeɪʃən]美[ˌfoʊtoʊˌɑːksɪˈdeɪʃn]

n. 光致氧化；感光氧化

英英释义

单词用法

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例句

1.The results showed that there are certain differences of sensibility in response to natural strong light or photooxidation between C3 and C4 plants.

结果表明C_3和C_4植物对自然强光或光氧化作用响应的敏感性存在一定的差别。

2.The effects of some light stabilizers and antioxidants on PE film photooxidation aging are studied, and the cooperation and content of these matters are also discussed.

研究了不同光稳定剂和抗氧剂及其配合使用、光稳定剂含量对聚乙烯薄膜耐光氧老化性的影响。

3.By thin film oven test and ultraviolet photooxidation test, asphalt performance indices were studied, including penetration, softening point, ductility and viscosity.

采用沥青薄膜加热试验和紫外线老化试验，对沥青的针入度、软化点、延度和粘度等性能指标进行了试验研究。

4.Objective: to find a good protocol of decellularization and dye-mediated photooxidation in bovine pericardium, evaluation the feasibility as a new biomaterial substitution in cardiac surgery.

目的：研究比较理想的去细胞结合光氧化法处理牛心包的方案，初步探讨其作为心血管生物组织替代材料的可行性。

5.Objective: to find a good protocol of decellularization and dye-mediated photooxidation in bovine pericardium, evaluation the feasibility as a new biomaterial substitution in cardiac surgery.

目的：研究比较理想的去细胞结合光氧化法处理牛心包的方案，初步探讨其作为心血管生物组织替代材料的可行性。

6.Photooxidation of CH4 probably was an important source of organic peroxides in the troposphere.

甲烷的光化学氧化可能是大气对流层有机过氧化物的重要来源。

7.Moderate shade can protect shade endurance plants from photooxidation injury.

适度遮荫可以有效的防止耐荫植物发生光氧化伤害。

8.The UV photooxidation characteristics of different density macerals of Shenfu coal have been studied in a fixed bed photoreactor.

在固定床光氧化反应器中，对神府煤不同密度级组分进行了紫外光光氧化研究。

9.According to the analysis of products in photooxidation and dark oxidation, it is certain that the oxidation in our condition proceeds through a free radical mechanism.

根据蒎烯光氧化和暗氧化反应产物的分析，可以肯定蒎烯在本工作实验条件下的氧化反应是通过自由基机理而进行的。

10.The process of photooxidation 光氧化 can lead to the breakdown of pollutants in water.

光氧化的过程可以导致水中污染物的降解。

11.Researchers are studying the effects of photooxidation 光氧化 on the stability of certain organic compounds.

研究人员正在研究光氧化对某些有机化合物稳定性的影响。

12.The degradation of plastics in the environment is often accelerated by photooxidation 光氧化 due to UV exposure.

由于紫外线的照射，环境中塑料的降解常常因光氧化而加速。

13.Understanding photooxidation 光氧化 mechanisms can help in developing better sunscreen products.

理解光氧化机制可以帮助开发更好的防晒产品。

14.In plants, photooxidation 光氧化 plays a crucial role in photosynthesis by converting light energy into chemical energy.

在植物中，光氧化在光合作用中起着至关重要的作用，通过将光能转化为化学能。

作文

In recent years, the term photooxidation has gained significant attention in various fields of science, particularly in environmental chemistry and biology. Photooxidation refers to a chemical process in which light energy, typically from sunlight, is used to drive oxidation reactions. This process plays a crucial role in the degradation of organic pollutants in the environment and is essential for understanding how natural ecosystems function.One of the most common examples of photooxidation occurs in aquatic environments, where sunlight interacts with organic compounds dissolved in water. When light photons hit these compounds, they can excite electrons, leading to the formation of reactive oxygen species (ROS). These ROS are highly reactive molecules that can further react with other organic materials, breaking them down into simpler, less harmful substances. This process is vital for maintaining the health of aquatic ecosystems, as it helps to remove pollutants and restore balance.Moreover, photooxidation is not limited to water bodies; it also occurs in the atmosphere. For instance, when sunlight interacts with certain airborne pollutants, such as volatile organic compounds (VOCs), it can lead to the formation of smog and other harmful air quality issues. Understanding the mechanisms behind photooxidation in the atmosphere is essential for developing strategies to mitigate air pollution and protect public health.In addition to its environmental implications, photooxidation is also a significant process in biological systems. Plants, for example, utilize photooxidation during photosynthesis. When chlorophyll absorbs sunlight, it triggers a series of reactions that ultimately convert carbon dioxide and water into glucose and oxygen. During this process, some energy is lost as heat, and oxidative stress can occur if the balance between ROS production and detoxification is disrupted. This highlights the importance of photooxidation in both energy production and cellular health in living organisms.Furthermore, researchers are exploring the potential applications of photooxidation in various technologies, such as solar energy conversion and wastewater treatment. By harnessing the power of sunlight to drive oxidation reactions, scientists aim to develop more efficient methods for energy generation and pollutant removal. This innovative approach not only addresses environmental challenges but also contributes to the advancement of sustainable technologies.In conclusion, photooxidation is a multifaceted process that plays a vital role in our environment, biology, and technology. Its significance extends beyond mere chemical reactions; it is fundamental to the health of ecosystems, the functioning of living organisms, and the development of sustainable solutions for pressing global issues. As research continues to uncover the complexities of photooxidation, it is crucial for scientists and policymakers to collaborate in leveraging this knowledge to foster a healthier planet for future generations.

光氧化这个词近年来在科学的各个领域，特别是环境化学和生物学中引起了显著关注。光氧化指的是一种化学过程，其中光能，通常来自阳光，被用来驱动氧化反应。这个过程在环境中有机污染物的降解中起着至关重要的作用，并且对于理解自然生态系统的功能至关重要。一个常见的光氧化例子发生在水体环境中，阳光与溶解在水中的有机化合物相互作用。当光子击中这些化合物时，它们可以激发电子，从而形成活性氧物种（ROS）。这些ROS是高度反应性的分子，可以进一步与其他有机物质反应，将其分解为更简单、更无害的物质。这个过程对维持水生生态系统的健康至关重要，因为它有助于去除污染物并恢复平衡。此外，光氧化不仅限于水体；它也发生在大气中。例如，当阳光与某些空气中的污染物，如挥发性有机化合物（VOCs）相互作用时，可能导致雾霾和其他有害的空气质量问题。理解大气中光氧化的机制对于制定减轻空气污染和保护公共健康的策略至关重要。除了环境影响外，光氧化在生物系统中也是一个重要的过程。例如，植物在光合作用中利用光氧化。当叶绿素吸收阳光时，会触发一系列反应，最终将二氧化碳和水转化为葡萄糖和氧气。在这个过程中，一些能量以热的形式损失，如果ROS的产生与解毒之间的平衡被打破，就会发生氧化压力。这突显了光氧化在能量生产和生物体细胞健康中的重要性。此外，研究人员正在探索光氧化在各种技术中的潜在应用，例如太阳能转换和废水处理。通过利用阳光的力量来驱动氧化反应，科学家们旨在开发更高效的能源生成和污染物去除方法。这种创新的方法不仅解决了环境挑战，还促进了可持续技术的发展。总之，光氧化是一个多方面的过程，在我们的环境、生物学和技术中发挥着至关重要的作用。它的重要性超越了单纯的化学反应；它是生态系统健康、生命体功能和应对全球紧迫问题的可持续解决方案发展的基础。随着研究不断揭示光氧化的复杂性，科学家和政策制定者必须合作，利用这一知识，为未来几代人创造一个更健康的地球。