Light-Induced In Situ Formation of a Nonmetallic Plasmonic MoS2/MoO3–x Heterostructure with Efficient Charge Transfer for CO2 Reduction and SERS Detection

2021 ◽  
Author(s):  
Juan Li ◽  
Xiaohao Xu ◽  
Baibiao Huang ◽  
Zaizhu Lou ◽  
Baojun Li
Keyword(s):  
Charge Transfer ◽  
Co2 Reduction ◽  
Sers Detection ◽  
Efficient Charge ◽  
In Situ Formation

In situ formation of new organic ligands to construct two novel self-charge-transfer Pb(ii)-based frameworks

CrystEngComm ◽  
2012 ◽  
Vol 14 (1) ◽  
pp. 75-78 ◽  
Author(s):  
Yi Liu ◽  
Melvin Jun Wei Tan ◽  
Fengxia Wei ◽  
Yufeng Tian ◽  
Tom Wu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Organic Ligands ◽  
In Situ Formation

In situ synthesis of FeP-decorated Ti–Fe2O3: an effective strategy to improve the interfacial charge transfer in the photoelectrochemical water oxidation reaction

2019 ◽  
Vol 9 (20) ◽  
pp. 5812-5818 ◽  
Author(s):  
Qijing Bu ◽  
Shuo Li ◽  
Qiannan Wu ◽  
Yanhong Lin ◽  
Dejun Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
In Situ Synthesis ◽  
Effective Strategy ◽  
Interfacial Charge Transfer ◽  
Efficient Charge ◽  
Interfacial Charge ◽  
Photoelectrochemical Water Oxidation

The unprecedented FeP/Ti–Fe2O3 possesses the advantages of efficient charge transfer in the bulk photoanode and at the interface of the photoanode and the electrolyte.

scholarly journals Construction of UiO-66/Bi4O5Br2 Type-II Heterojunction to Boost Charge Transfer for Promoting Photocatalytic CO2 Reduction Performance

2021 ◽  
Vol 9 ◽  
Author(s):  
Dongsheng Li ◽  
Bichen Zhu ◽  
Zhongti Sun ◽  
Qinqin Liu ◽  
Lele Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Co2 Reduction ◽  
Clean Energy ◽  
High Photocatalytic Activity ◽  
Type Ii ◽  
Co Catalysts ◽  
Tight Contact ◽  
Assembly Method ◽  
Efficient Charge

One of the basic challenges of CO2 photoreduction is to develop efficient photocatalysts, and the construction of heterostructure photocatalysts with intimate interfaces is an effective strategy to enhance interfacial charge transfer for realizing high photocatalytic activity. Herein, a novel UiO-66/Bi4O5Br2 heterostructure photocatalyst was constructed by depositing UiO-66 nanoparticles with octahedral morphology over the Bi4O5Br2 nanoflowers assembled from the Bi4O5Br2 nanosheets via an electrostatic self-assembly method. A tight contact interface and a built-in electric field were formed between the UiO-66 and the Bi4O5Br2, which was conducive to the photo-electrons transfer from the Bi4O5Br2 to the UiO-66 and the formation of a type-II heterojunction with highly efficient charge separation. As a result, the UiO-66/Bi4O5Br2 exhibited improved photocatalytic CO2 reduction performance with a CO generation rate of 8.35 μmol h−1 g−1 without using any sacrificial agents or noble co-catalysts. This work illustrates an applicable tactic to develop potent photocatalysts for clean energy conversion.

In-situ C–H activation-derived polymer@TiO2 p-n heterojunction for efficient photocatalytic hydrogen evolution

2021 ◽  
Author(s):  
Yu-Qin Xing ◽  
Zhi-Rong Tan ◽  
Jingzhao Cheng ◽  
Zhao-Qi Shen ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Inorganic Semiconductors ◽  
Efficient Charge ◽  
Semiconductor Heterojunctions

Semiconductor heterojunctions benefiting from efficient charge transfer and separation have been widely used in photocatalysis. Herein, heterojunctions based on polymeric and inorganic semiconductors, namely PyOT@TiO2, have been successfully constructed via...

scholarly journals In situ formation of H-bonding imidazole chains in break-junction experiments

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7914-7920
Author(s):  
Chuanli Wu ◽  
Aminah Alqahtani ◽  
Sara Sangtarash ◽  
Andrea Vezzoli ◽  
Hatef Sadeghi ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Charge Transport ◽  
Break Junction ◽  
Efficient Charge ◽  
In Situ Formation

Imidazole forms oligomeric chains connecting two gold nano-electrodes that facilitate efficient charge transport, with water included in aqueous solutions.

scholarly journals Charge-Transfer Regulated Visible Light Driven Photocatalytic H2 Production and CO2 Reduction in Tetrathiafulvalene Based Coordination Polymer Gel

2020 ◽  
Author(s):  
Parul Verma ◽  
Pallavi Sarkar ◽  
Ashish Singh ◽  
Swapan Pati ◽  
Tapas Maji
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Coordination Polymer ◽  
Visible Light ◽  
Co2 Reduction ◽  
Pt Nanoparticles ◽  
H2 Production ◽  
Polymer Gel ◽  
H2 Evolution

Abstract The much-needed renewable alternatives to fossil fuel can be achieved efficiently and sustainably by converting solar energy to solar fuels via hydrogen generation from water or CO2 reduction. In this regard, a soft processable metal-organic hybrid semiconducting material has been developed and studied for photocatalytic activity towards H2 production and CO2 reduction to CO and CH4 under visible light and direct sunlight irradiation. A tetrapodal low molecular weight gelator is synthesized by integrating tetrathiafulvalene and terpyridine through amide linkage (TPY-TTF). The TPY-TTF acts as a linker and by self-assembly with ZnII results in a charge-transfer (CT) coordination polymer gel (CPG); Zn-TPY-TTF. The Zn-TPY-TTF shows impressive photocatalytic activity towards H2 production (rate = 530 μmol g-1h-1) and CO2 reduction to CO (rate = 438 μmol g-1h-1, selectivity >99%) regulated by charge-transfer interaction. Furthermore, in-situ stabilization of Pt nanoparticles to CPG (Pt@Zn-TPY-TTF) exhibits remarkably enhanced H2 evolution (rate =14727 μmol g-1h-1). Importantly, Pt@Zn-TPY-TTF modulate the CO2 reduction from CO to CH4 (rate = 292 μmol g-1h-1, selectivity >97%). Real-time CO2 reduction reaction is monitored by in-situ DRIFT study and subsequent plausible mechanism is derived computationally. The photocatalytic activity of Zn-TPY-TTF and Pt@Zn-TPY-TTF composite was also examined under sunlight that display excellent H2 evolution and CO2 reduction.

scholarly journals Charge-transfer regulated visible light driven photocatalytic H2 production and CO2 reduction in tetrathiafulvalene based coordination polymer gel

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Parul Verma ◽  
Ashish Singh ◽  
Faruk Ahamed Rahimi ◽  
Pallavi Sarkar ◽  
Sukhendu Nath ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Coordination Polymer ◽  
Visible Light ◽  
Self Assembly ◽  
Hydrogen Generation ◽  
Co2 Reduction ◽  
Pt Nanoparticles ◽  
Polymer Gel

AbstractThe much-needed renewable alternatives to fossil fuel can be achieved efficiently and sustainably by converting solar energy to fuels via hydrogen generation from water or CO2 reduction. Herein, a soft processable metal-organic hybrid material is developed and studied for photocatalytic activity towards H2 production and CO2 reduction to CO and CH4 under visible light as well as direct sunlight irradiation. A tetrapodal low molecular weight gelator (LMWG) is synthesized by integrating tetrathiafulvalene (TTF) and terpyridine (TPY) derivatives through amide linkages and results in TPY-TTF LMWG. The TPY-TTF LMWG acts as a linker, and self-assembly of this gelator molecules with ZnII ions results in a coordination polymer gel (CPG); Zn-TPY-TTF. The Zn-TPY-TTF CPG shows high photocatalytic activity towards H2 production (530 μmol g−1h−1) and CO2 reduction to CO (438 μmol g−1h−1, selectivity > 99%) regulated by charge-transfer interactions. Furthermore, in situ stabilization of Pt nanoparticles on CPG (Pt@Zn-TPY-TTF) enhances H2 evolution (14727 μmol g−1h−1). Importantly, Pt@Zn-TPY-TTF CPG produces CH4 (292 μmol g−1h−1, selectivity > 97%) as CO2 reduction product instead of CO. The real-time CO2 reduction reaction is monitored by in situ DRIFT study, and the plausible mechanism is derived computationally.

Efficient and stable charge transfer channels for photocatalytic water splitting activity of CdS without sacrificial agents

2020 ◽  
Vol 8 (40) ◽  
pp. 20963-20969 ◽  
Author(s):  
Wei Chen ◽  
Guo-Bo Huang ◽  
Hao Song ◽  
Jian Zhang
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Transfer Channel ◽  
Efficient Charge ◽  
Transfer Channels

An efficient charge transfer channel for improving the photocatalytic water splitting activity and durability of CdS without sacrificial agents.

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