Journal
ADVANCED POWDER MATERIALS
Volume 1, Issue 2, Pages -Publisher
KEAI PUBLISHING LTD
DOI: 10.1016/j.apmate.2021.09.008
Keywords
Self-water-absorption-type photocatalyst; Two-dimensional materials; Water absorption; Overall water splitting; P; MoS2
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Funding
- National Natural Science Foundation of China [51802177]
- Independent Cultivation Program of theInnovation Team of Jinan City [2019GXRC011]
- Natural Science Foundation of Shandong Province [ZR2018BEM019]
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The research presents a composite photocatalyst with self-water-absorption performance, which can produce sufficient hydrogen without any precious metal or sacrificial agent. It also demonstrates good overall water-splitting performance under simulated Mars conditions.
Photocatalytic overall water splitting is an interesting research topic in the field of energy and outer space exploration. Here, we designed a P/MoS2 composite photocatalyst with self-water-absorption performance by compositing MoS2 nanosheets and polycrystalline black phosphorus nanosheets. The composite photocatalyst produced a sufficient amount of hydrogen in the absence of any precious metal. This also demonstrated photocatalytic overall water-splitting ability in the absence of any sacrificial agent. More interestingly, it effectively absorbed water and demonstrated good overall water-splitting performance under the simulated Mars conditions; the average hydrogen production rate was 17.68 & mu;mol h-1 g-1, and the oxygen production rate was 7.61 & mu;mol h-1 g-1 over a period of 70 h. A comprehensive investigation of the ability of the composite photocatalyst to absorb water and produce hydrogen was performed.
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