Hollow Nanostructures for Photocatalysis: Advantages and Challenges

Mu Xiao, Zhiliang Wang, Miaoqiang Lyu, Bin Luo, Songcan Wang, Gang Liu, Hui Ming Cheng, Lianzhou Wang

科研成果: 期刊稿件文献综述同行评审

625 引用 (Scopus)

摘要

Photocatalysis for solar-driven reactions promises a bright future in addressing energy and environmental challenges. The performance of photocatalysis is highly dependent on the design of photocatalysts, which can be rationally tailored to achieve efficient light harvesting, promoted charge separation and transport, and accelerated surface reactions. Due to its unique feature, semiconductors with hollow structure offer many advantages in photocatalyst design including improved light scattering and harvesting, reduced distance for charge migration and directed charge separation, and abundant surface reactive sites of the shells. Herein, the relationship between hollow nanostructures and their photocatalytic performance are discussed. The advantages of hollow nanostructures are summarized as: 1) enhancement in the light harvesting through light scattering and slow photon effects; 2) suppression of charge recombination by reducing charge transfer distance and directing separation of charge carriers; and 3) acceleration of the surface reactions by increasing accessible surface areas for separating the redox reactions spatially. Toward the end of the review, some insights into the key challenges and perspectives of hollow structured photocatalysts are also discussed, with a good hope to shed light on further promoting the rapid progress of this dynamic research field.

源语言英语
文章编号1801369
期刊Advanced Materials
31
38
DOI
出版状态已出版 - 1 9月 2019
已对外发布

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