photocatalysis

简明释义

英[fəʊtəʊkəˈtælɪsɪs]美[foʊtoʊkəˈtælɪsɪs]

n. 光催化；光催化作用

复 数 p h o t o c a t a l y s e s

英英释义

单词用法

同义词

反义词

例句

1.Objective To develop a new technique of air purification by plasma combined with photocatalysis .

目的研究一种新型的等离子体-光催化复合空气净化技术。

2.Results show that the photocatalyst immobilized on concrete exhibits excellent photocatalysis, while the photocatalysis of bituminous mixture is poor.

研究表明：水泥混凝土负载的光催化剂具有优越的光催化功能，而沥青混合料的较差。

3.The photocatalyst modification and fixation are the keys of the industrial application of heterogeneous photocatalysis technology.

提高光催化剂的光催化活性及将光催化剂固定是多相光催化技术能否工业化应用的关键。

4.The photocatalysis detoxification of air and water is hence, a process that combines heterogeneous catalysis with solar technologies.

因此，空气和水的光催化解毒是一个结合多相催化与太阳能技术的过程。

5.The newly research results of photocatalysis technique in different application field were introduced.

同时，结合实例介绍了光催化技术在不同领域的最新研究成果。

6.Acted as photocatalysis film, titanium oxide is widely applied to sterilization, anticancer, water and air disposal et al.

作为光催化膜，被广泛的应用到光催化洁净和水、气的净化处理，杀菌和抗癌方面。

7.To fill in the gaps of photocatalysis product′s standard, self-cleaning fabric test system is set up to study and develop self-cleaning fabric.

针对光触媒类产品标准缺失的现状，自建了自清洁纺织品测试体系，以利于对自清洁纺织品进行研究与开发。

8.The process of photocatalysis is used to break down pollutants in water.

使用光催化过程来分解水中的污染物。

9.Researchers are studying photocatalysis for its potential in renewable energy applications.

研究人员正在研究光催化在可再生能源应用中的潜力。

10.In the presence of light, photocatalysis can convert carbon dioxide into useful fuels.

在光的作用下，光催化可以将二氧化碳转化为有用的燃料。

11.The use of titanium dioxide in photocatalysis has gained popularity for environmental cleanup.

二氧化钛在光催化中的使用因其在环境清理中的效果而受到欢迎。

12.Many air purifiers utilize photocatalysis to eliminate harmful substances.

许多空气净化器利用光催化来消除有害物质。

作文

In recent years, the concept of photocatalysis has gained significant attention in the field of environmental science and technology. Photocatalysis refers to the acceleration of a photoreaction in the presence of a catalyst. This process typically involves the absorption of light, which then triggers a chemical reaction, leading to the breakdown of pollutants or the synthesis of valuable compounds. The potential applications of photocatalysis are vast, ranging from air purification to water treatment and even energy production. One of the most compelling reasons to explore photocatalysis is its ability to utilize sunlight as an energy source. In an era where renewable energy sources are increasingly prioritized, harnessing solar energy through photocatalysis presents a sustainable solution to various environmental challenges. For instance, researchers have developed titanium dioxide (TiO2) as a common photocatalyst that can decompose organic pollutants when exposed to ultraviolet light. This capability makes it a powerful tool for cleaning contaminated water bodies, thereby contributing to environmental restoration efforts. Moreover, the application of photocatalysis extends beyond just pollutant degradation. It also plays a crucial role in the production of hydrogen fuel through water splitting. By using sunlight to drive the reaction, photocatalysis can convert water into hydrogen and oxygen gases, providing a clean and renewable energy source. This process has the potential to significantly reduce our reliance on fossil fuels and mitigate climate change impacts. Despite its promising applications, there are still challenges to overcome in the field of photocatalysis. One major issue is the efficiency of the photocatalysts used. While TiO2 is effective under UV light, it is less responsive to visible light, which constitutes a significant portion of sunlight. Researchers are actively investigating new materials and methods to enhance the light absorption properties of photocatalysts, thus improving their overall efficiency. Innovations such as doping TiO2 with other elements or developing new photocatalytic materials like graphitic carbon nitride (g-C3N4) are examples of ongoing research aimed at addressing these limitations. Additionally, the scalability of photocatalysis technologies poses another challenge. While laboratory experiments have shown great promise, translating these findings into large-scale applications requires further development and investment. Collaboration between academia, industry, and government entities will be essential to bring photocatalysis solutions to market, making them accessible for widespread use. In conclusion, photocatalysis represents a fascinating intersection of chemistry, environmental science, and renewable energy technology. Its ability to harness sunlight for various applications offers a pathway toward a more sustainable future. As research continues to advance, we may soon see photocatalysis becoming a standard practice in environmental remediation and energy production, ultimately contributing to a cleaner and healthier planet.

近年来，“光催化”这个概念在环境科学和技术领域引起了显著关注。光催化是指在催化剂存在的情况下加速光反应的过程。这个过程通常涉及光的吸收，随后触发化学反应，从而分解污染物或合成有价值的化合物。光催化的潜在应用广泛，包括空气净化、水处理甚至能源生产。 探索光催化的一个重要原因是它能够利用阳光作为能源。在一个越来越重视可再生能源的时代，通过光催化利用太阳能提供了一种可持续的解决方案，以应对各种环境挑战。例如，研究人员开发了二氧化钛（TiO2）作为一种常见的光催化剂，当暴露在紫外光下时，可以分解有机污染物。这种能力使其成为清洁被污染水体的强大工具，从而为环保修复工作做出贡献。 此外，光催化的应用不仅限于污染物降解。它在通过水分解生产氢燃料方面也发挥着关键作用。通过利用阳光驱动反应，光催化可以将水转化为氢气和氧气，为清洁和可再生的能源源提供了可能。这一过程有潜力显著减少我们对化石燃料的依赖，并缓解气候变化的影响。 尽管有前景，但在光催化领域仍然存在一些挑战。一个主要问题是所使用的光催化剂的效率。虽然TiO2在紫外光下有效，但在可见光下的响应较差，而可见光占据了阳光的很大一部分。研究人员正在积极研究新材料和方法，以增强光催化剂的光吸收特性，从而提高其整体效率。像掺杂TiO2与其他元素或开发新型光催化材料如石墨相氮化碳（g-C3N4）等创新是当前研究中旨在解决这些局限性的例子。 此外，光催化技术的可扩展性也是另一个挑战。虽然实验室实验显示出巨大的前景，但将这些发现转化为大规模应用需要进一步的发展和投资。学术界、产业界和政府机构之间的合作对于将光催化解决方案推向市场至关重要，使其能够广泛使用。 总之，光催化代表了化学、环境科学和可再生能源技术的迷人交汇点。它利用阳光进行各种应用的能力为实现更可持续的未来提供了一条途径。随着研究的不断进展，我们可能很快会看到光催化成为环境修复和能源生产中的标准实践，最终为创造一个更清洁、更健康的星球做出贡献。