Journal
TRENDS IN CHEMISTRY
Volume 4, Issue 11, Pages 973-983Publisher
CELL PRESS
DOI: 10.1016/j.trechm.2022.08.008
Keywords
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Categories
Funding
- National Natural Science Foundation of China
- National Postdoctoral Program for Innovative Talents
- China Postdoctoral Science Foundation
- [51932007]
- [U1905215]
- [21871217]
- [52073223]
- [BX2021275]
- [2021TQ0310]
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This study analyzes the challenges of photocatalytic mechanisms in liquid-phase and all-solid-state Z-scheme systems from various perspectives, including thermodynamics, charge-transfer dynamics, applicability, and practical synthesis. It highlights the challenges for electron transfer in liquid-phase Z-scheme systems, where the dynamic motion of photocatalyst nanoparticles and redox couples, as well as the prohibition of transferring free electrons via water media, ultimately led to the flourishing of step-scheme heterojunctions.
Z-scheme photocatalytic systems have been extensively studied since they are supposed to promote carrier separation while boosting redox abilities. Herein, we analyze the challenges of photocatalytic mechanisms in liquid-phase and all-solid-state Z-scheme systems from various perspectives, including thermody-namics, charge-transfer dynamics, applicability, and practical synthesis. Notably, in this opinion, we analyze the challenges for electron transfer in liquid-phase Z-scheme systems, where photocatalyst nanoparticles (NPs) and redox couples are constantly under dynamic motion and the transfer of free electrons via water media is prohibited. These problems ultimately led to the flourishing of step-scheme (S-scheme) heterojunctions.
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