adsorption centre

简明释义

吸附中心;

英英释义

例句

1.The research team discovered a new type of material that acts as an effective adsorption centre 吸附中心 for pollutants.

研究团队发现了一种新型材料，作为污染物的有效吸附中心。

2.The adsorption centre 吸附中心 plays a crucial role in gas purification processes.

在气体净化过程中，吸附中心起着至关重要的作用。

3.The effectiveness of the adsorption centre 吸附中心 depends on its chemical composition.

该吸附中心的有效性取决于其化学成分。

4.By enhancing the surface area, we can improve the performance of the adsorption centre 吸附中心 significantly.

通过增强表面积，我们可以显著提高吸附中心的性能。

5.In the laboratory, we measured the efficiency of the adsorption centre 吸附中心 in removing heavy metals from water.

在实验室中，我们测量了吸附中心在去除水中重金属方面的效率。

作文

In the realm of chemistry and material science, the concept of an adsorption centre plays a pivotal role in understanding how molecules interact with surfaces. An adsorption centre refers to a specific site on a solid surface where molecules from a gas or liquid phase can adhere. This phenomenon is critical in various applications, including catalysis, environmental remediation, and sensor technology.To comprehend the significance of an adsorption centre, we must first delve into the process of adsorption itself. Adsorption is distinct from absorption; while absorption involves the incorporation of substances into a bulk phase, adsorption occurs at the interface between the solid and the surrounding fluid. The adsorption centre acts as a focal point for this process, where intermolecular forces, such as van der Waals forces or chemical bonding, facilitate the attachment of molecules.The efficiency of adsorption is influenced by several factors, including temperature, pressure, and the nature of the adsorbate and adsorbent. For instance, in catalytic processes, the presence of a well-defined adsorption centre can significantly enhance reaction rates by providing a conducive environment for reactants to collide and react. This is particularly evident in heterogeneous catalysis, where catalysts are typically solids that promote reactions involving gaseous or liquid reactants.Moreover, the design of materials with optimized adsorption centres has become a focal point in research and development. Scientists and engineers strive to create surfaces with tailored properties that maximize the number and effectiveness of these centres. For example, porous materials with high surface area are often engineered to contain numerous adsorption centres, thereby increasing their capacity to capture and hold various substances. This approach is widely applied in the development of adsorbents for gas separation, water purification, and even carbon capture technologies.In environmental science, understanding adsorption centres is crucial for addressing pollution issues. Contaminants in water bodies can be effectively removed using activated carbon, which contains a multitude of adsorption centres that trap harmful chemicals. The ability of these materials to bind pollutants depends on the characteristics of the adsorption centres, which can vary based on the material's composition and structure.Furthermore, in sensor technology, the interaction between target molecules and adsorption centres is exploited to detect specific substances. Sensors often rely on changes in electrical conductivity or optical properties when molecules adhere to the adsorption centres on their surfaces. This principle forms the basis for various applications, including gas sensors and biosensors, which are essential for monitoring environmental conditions and biological processes.In conclusion, the study of adsorption centres is integral to advancing our understanding of molecular interactions at solid surfaces. From enhancing catalytic processes to developing advanced materials for environmental applications, the implications of adsorption centres are vast and varied. As research continues to uncover the intricacies of these sites, we can expect significant advancements in technology and environmental sustainability, demonstrating the profound impact of this concept in both scientific and practical realms.

在化学和材料科学的领域中，吸附中心的概念在理解分子如何与表面相互作用方面发挥着关键作用。吸附中心是指固体表面上特定的位置，在该位置上气体或液体相位中的分子可以附着。这种现象在催化、环境修复和传感器技术等各种应用中至关重要。为了理解吸附中心的重要性，我们必须首先深入探讨吸附过程本身。吸附不同于吸收；吸收涉及物质进入一个大相，而吸附则发生在固体与周围流体之间的界面。吸附中心作为这一过程的焦点，通过范德华力或化学键合等分子间作用力促进分子的附着。吸附的效率受多个因素的影响，包括温度、压力以及吸附物和吸附剂的性质。例如，在催化过程中，存在一个明确的吸附中心可以显著提高反应速率，因为它为反应物碰撞和反应提供了有利的环境。这在异相催化中尤为明显，异相催化剂通常是固体，促进气体或液体反应物之间的反应。此外，优化吸附中心的材料设计已成为研究和开发的重点。科学家和工程师努力创造具有优化性质的表面，以最大化这些中心的数量和有效性。例如，具有高比表面积的多孔材料通常被设计成包含大量吸附中心，从而增加它们捕获和保持各种物质的能力。这种方法广泛应用于气体分离、水净化甚至碳捕集技术的吸附剂开发。在环境科学中，理解吸附中心对于解决污染问题至关重要。水体中的污染物可以通过活性炭有效去除，活性炭包含大量的吸附中心，能够捕捉有害化学物质。这些材料结合污染物的能力取决于吸附中心的特征，这些特征可能因材料的组成和结构而异。此外，在传感器技术中，目标分子与吸附中心之间的相互作用被利用来检测特定物质。传感器通常依靠分子附着在其表面的吸附中心上时电导率或光学特性的变化。这一原理构成了各种应用的基础，包括气体传感器和生物传感器，这些传感器对监测环境条件和生物过程至关重要。总之，研究吸附中心对于推进我们对固体表面分子相互作用的理解至关重要。从增强催化过程到开发用于环境应用的先进材料，吸附中心的含义广泛而多样。随着研究继续揭示这些位点的复杂性，我们可以期待技术和环境可持续性的重大进展，展示这一概念在科学和实际领域的深远影响。