Journal ArticleDOI
Enhanced Superoxide Generation on Defective Surfaces for Selective Photooxidation
Xianshun Sun,Xiao Luo,Xiaodong Zhang,Junfeng Xie,Sen Jin,Hui Wang,Xusheng Zheng,Xiaojun Wu,Yi Xie +8 more
TLDR
Benefiting from the enhanced charge separation and transfer processes, the In2S3 nanosheets with S vacancies could simultaneously activate O2 into superoxide radicals via electron transfer under visible-light irradiation to display outstanding activity for the selective oxidation of alcohols to aldehydes with high conversion and selectivity.Abstract:
Photocatalytic selective oxidation reactions hold great promise for the design of high-value-added organic intermediates, but many of these reactions suffer from low conversion efficiency and selectivity due to uncontrollable oxidation processes. In view of using photogenerated reactive oxygen species as the key oxidant in a selective oxidation reaction, we propose that a highly selective oxidation reaction can be achieved by modulating the corresponding photocatalytic molecular oxygen (O2) activation processes. Using cubic indium sulfide (β-In2S3) nanosheets as a model system, we show that the charge carriers involved in O2 activation can be optimized with the introduction of surface S vacancies. Benefiting from the enhanced charge separation and transfer processes, the In2S3 nanosheets with S vacancies could simultaneously activate O2 into superoxide radicals via electron transfer under visible-light irradiation to display outstanding activity for the selective oxidation of alcohols to aldehydes with hi...read more
Citations
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Journal ArticleDOI
Cooperative Coupling of Oxidative Organic Synthesis and Hydrogen Production over Semiconductor-Based Photocatalysts.
TL;DR: In this paper, the fundamental principles of cooperative photoredox coupling of selective organic synthesis and H2 production by simultaneous utilization of photoexcited electrons and holes over semiconductor-based catalysts to meet the economic and sustainability goal are discussed.
Journal ArticleDOI
Selective Organic Transformations over Cadmium Sulfide-Based Photocatalysts
TL;DR: In this paper, the development of efficient catalyst for photoredox-catalyzed selective organic synthesis has always been remaining the attractive objective in recent years and is the most relevant research topic.
Journal ArticleDOI
Unravelling the interfacial charge migration pathway at atomic level in 2D/2D interfacial Schottky heterojunction for visible-light-driven molecular oxygen activation
Bisheng Li,Shiyu Liu,Cui Lai,Guangming Zeng,Mingming Zhang,Mingzhu Zhou,Danlian Huang,Lei Qin,Xigui Liu,Zhongwu Li,Ning An,Fuhang Xu,Huan Yi,Yujin Zhang,Liang Chen +14 more
TL;DR: In this article, an atomic scale 2D/2D Schottky heterojunction is prepared using titanium carbide as 2D platform for in situ growth of 2D ultrathin bismuth molybdate nanosheet through anaerobically hydrothermal conditions.
Journal ArticleDOI
Strategies and Challenges on Selectivity of Photocatalytic Oxidation of Organic Substances
Lunqiao Xiong,Junwang Tang +1 more
TL;DR: In this article, a review of the fundamental understanding of the reactive oxygen species involved in photocatalytic organic oxidations and furthermore, the general mechanisms of a few crucial oxidation reactions is presented.
Journal ArticleDOI
Selective Activation of Benzyl Alcohol Coupled with Photoelectrochemical Water Oxidation via a Radical Relay Strategy
TL;DR: In this article, the authors proposed to use selective oxidation to produce target chemicals, which usually need activation of O2 at high temperature and/or pressure, which has largely restricted its practical operation and application.
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