Latest progress in constructing solid-state Z scheme photocatalysts for water splitting

Artificial Z scheme photocatalysis has been considered as a promising strategy for producing the clean energy source of hydrogen gas. The core of the Z scheme is a two-step excitation process in a tandem structured photosystem aiming to satisfy both the criteria of wide range solar spectrum absorpti...

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Published inNanoscale Vol. 11; no. 23; pp. 1171 - 1182
Main Authors Xia, Xinyuan, Song, Mengjiao, Wang, Hua, Zhang, Xiangtong, Sui, Ning, Zhang, Qingbo, Colvin, Vicki L, Yu, William W
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 01.01.2019
Subjects
Catalytic activity
Clean energy
Electromagnetic absorption
Hydrogen-based energy
Morphology
Photocatalysis
Photocatalysts
Photolysis
Photovoltaic cells
Solid state
Water splitting
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Summary:Artificial Z scheme photocatalysis has been considered as a promising strategy for producing the clean energy source of hydrogen gas. The core of the Z scheme is a two-step excitation process in a tandem structured photosystem aiming to satisfy both the criteria of wide range solar spectrum absorption and strong thermodynamic driving force for photolysis reactions. Therefore, efficient connection and matching between the two photosystems is the key to improve the photocatalytic activity. Recently, new progress has been achieved concerning the principles and applications of state-of-the-art solid-state Z schematic systems to enhance the photocatalytic efficiency and repress competitive reactions. This review summarizes the latest approaches to all-solid-state Z schemes for photocatalytic water splitting, including new tandem structures, new morphologies, and new connection modes to improve light absorption as well as carrier transportation. The challenges for developing novel high performance Z scheme photocatalysts are also discussed. Artificial Z scheme photocatalysis has been considered as a promising strategy for producing a clean energy source of hydrogen gas.
Bibliography:Mengjiao Song received her BS degree in chemistry from Qufu Normal University in 2016. She is currently working on her MS degree at Shandong Normal University under the supervision of Dr Xinyuan Xia. Her research focuses on photocatalytic water splitting by non-noble metal compounds.
2
fixation by earth-abundant materials.
Xinyuan Xia received his Ph.D. degree in inorganic chemistry at Peking University in 2012. He is now a lecturer in the College of Chemistry, Chemical Engineering and Materials Science at Shandong Normal University. His research mainly focuses on photocatalytic water splitting, CO
reduction, and N
William Yu obtained his PhD degree from the Institute of Chemistry, Chinese Academy of Sciences. His research interests are solution dispersible nanomaterials and their applications in alternative energy, biomedicine, and environmental remediation.
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ISSN:2040-3364
2040-3372
DOI:10.1039/c9nr03218e