Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

2018 ◽  
Vol 54 (82) ◽  
pp. 11614-11617 ◽  
Author(s):  
Govardhana Babu Bodedla ◽  
Lingling Li ◽  
Yuanyuan Che ◽  
Yijiao Jiang ◽  
Jun Huang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Hydrogen Evolution ◽  
Intramolecular Energy Transfer ◽  
Photocatalytic Hydrogen Evolution ◽  
Porphyrin Core

Three new isomeric naphthalimide conjugated porphyrins are developed for photocatalytic H2 production. The para-substituted isomer, ZnT(p-NI)PP delivers the highest rate (ηH2) of 973 μmol g−1 h−1 due to the efficient intramolecular energy transfer from the naphthalimide to the porphyrin core.

Intramolecular Energy Transfer in a Series of Star-Shaped Molecules with a Central Porphyrin Core and Four Oligocarbazole Arms

2020 ◽  
Vol 124 (50) ◽  
pp. 27356-27365
Author(s):  
Dayujia Huo ◽  
Qin Peng ◽  
Tinghua Xu ◽  
Xin Wang ◽  
Xian Wang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer ◽  
Porphyrin Core

Improved CdS photocatalytic H2 evolution using Au–Ag nanoparticles with tunable plasmon-enhanced resonance energy transfer

2020 ◽  
Vol 49 (22) ◽  
pp. 7467-7473 ◽  
Author(s):  
Xuanyu Yue ◽  
Juan Hou ◽  
Yifan Zhang ◽  
Pengcheng Wu ◽  
Yali Guo ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Hydrogen Evolution ◽  
Ag Nanoparticles ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
H2 Evolution ◽  
Hollow Nanoparticles ◽  
Plasmon Absorption ◽  
Photocatalytic Hydrogen Evolution ◽  
Photocatalytic H2 Evolution

Au–Ag hollow nanoparticles (HNPs) with tunable plasmon absorption peaks were mixed with CdS to achieve stepwise spectral overlap to enhance energy transfer and photocatalytic hydrogen evolution.

Semiconductor Photocatalysts for Solar-to-Hydrogen Energy Conversion: Recent Advances of CdS

2020 ◽  
Vol 16 ◽  
Author(s):  
Yuxue Wei ◽  
Honglin Qin ◽  
Jinxin Deng ◽  
Xiaomeng Cheng ◽  
Mengdie Cai ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Noble Metals ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Theoretical Design ◽  
Recent Developments

Introduction: Solar-driven photocatalytic hydrogen production from water splitting is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. In this review, recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. In particular, the factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Background: Photocatalytic hydrogen evolution from water splitting using photocatalyst semiconductors is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. Methods: This review summarizes the recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation. Results: Recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. The factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Conclusion: The state-of-the-art CdS for producing hydrogen from photocatalytic water splitting under visible light is discussed. The future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are also described.

Tuning of the Oxygen Species Linker on the Surface of Polymeric Carbon Nitride to Promote the Photocatalytic Hydrogen Evolution Performance

ChemSusChem ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3605-3613 ◽  
Author(s):  
Qin Lei ◽  
Rongzhi Chen ◽  
Yurong Zhao ◽  
Huanyu Chen ◽  
Xinxin Long ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Oxygen Species ◽  
Photocatalytic Hydrogen Evolution ◽  
Polymeric Carbon

Delocalized Excitation or Intramolecular Energy Transfer in Pyrene Core Dendrimers

2021 ◽  
pp. 7717-7725
Author(s):  
Dayujia Huo ◽  
Minjie Li ◽  
Zujin Zhao ◽  
Xian Wang ◽  
Andong Xia ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer

Copolymerization of urea and murexide for efficient photocatalytic hydrogen evolution and tetracycline degradation

2021 ◽  
Author(s):  
Zhilu Du ◽  
Xinyu Zhao ◽  
Yingnan Zhao ◽  
Huiying Sun ◽  
Yingqi Li ◽  
...  
Keyword(s):  
Small Molecules ◽  
Hydrogen Evolution ◽  
Effective Strategy ◽  
Structure Property ◽  
Photocatalytic Hydrogen Evolution ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Tetracycline Degradation ◽  
Depth Study

Copolymerization of urea and small molecules is an effective strategy to modify g-C3N4. To in-depth study the important effects of the introduction of small molecular moiety on the structure-property relationship...

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