光催化中的约束效应:进展与挑战

IF 9.5 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Yi Zhang, Dandan Ma, Jun Li, Yu Chen, Le Shi, Xiangbo Feng and Jian-Wen Shi
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引用次数: 0

摘要

随着全球能源需求的不断增长和环境污染问题的日益严重,光催化技术作为一种将太阳能转化为清洁氢能的有效方法,在能源转换和环境净化方面具有巨大的潜力。然而,传统的光催化材料存在光激发电子与空穴复合率高、对反应物吸附能力差、催化活性位点利用率低等问题。约束效应通过特殊的空间结构将活性物质限制在纳米级区域,有效地提高了催化效率。本文首先介绍了一维、二维和三维约束结构,然后总结了约束效应近年来在废水处理、大气污染物处理、光催化H2或H2O2产光催化CO2还原等方面的应用,重点分析了其反应机理及催化性能提高的原因。最后,对约束效应的未来研究进行了展望。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Confinement effects in photocatalysis: progress and challenges

Confinement effects in photocatalysis: progress and challenges

With the continuous growth of global energy demand and increasingly serious environmental pollution problems, photocatalytic technology, as an effective method for converting solar energy into clean hydrogen energy, has great potential in energy conversion and environmental purification. However, traditional photocatalytic materials have problems such as high recombination rate of photo-excited electrons and holes, poor adsorption capacity of reactants, and low utilization rate of catalytic active sites. The confinement effect effectively enhances the catalytic efficiency by restricting the active species to the nanoscale region through a special spatial structure. This review first introduces one-dimensional, two-dimensional, and three-dimensional confined structures and then summarizes the application of confinement effects in wastewater treatment, air pollutant treatment, photocatalytic H2 or H2O2 production and photocatalytic CO2 reduction in recent years, focusing on analyzing the reaction mechanism and the reasons for the improvement of catalytic performance. Finally, several outlooks for future research on the confinement effects are proposed.

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来源期刊
Journal of Materials Chemistry A
Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
19.50
自引率
5.00%
发文量
1892
审稿时长
1.5 months
期刊介绍: The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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