Interfacial charge transfer and enhanced photocatalytic performance for the heterojunction WO3/BiOCl: first-principles study

2014 ◽  
Vol 2 (48) ◽  
pp. 20770-20775 ◽  
Author(s):  
Wenjuan Yang ◽  
Yanwei Wen ◽  
Dawen Zeng ◽  
Qingbo Wang ◽  
Rong Chen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
First Principles ◽  
Photocatalytic Performance ◽  
Interfacial Charge Transfer ◽  
First Principles Study ◽  
Interfacial Charge

scholarly journals Role of interfacial charge transfer process in the graphene-ZnO-MoO3 core-shell nanoassemblies for efficient disinfection of industrial effluents

2019 ◽  
Vol 13 (4) ◽  
pp. 376-386
Author(s):  
Rakkesh Ajay ◽  
Dhinasekaran Durgalakshmi ◽  
Ponnuraj Karthe ◽  
Subramanian Balakumar
Keyword(s):  
Charge Transfer ◽  
Photocatalytic Performance ◽  
Graphene Nanosheets ◽  
Electronic Conductivity ◽  
Reaction Medium ◽  
Core Shell ◽  
Chemical Bonds ◽  
Interfacial Charge Transfer ◽  
Synthesis Strategy ◽  
Interfacial Charge

A combined wet chemical strategy was adopted to fabricate size controllable ZnO-MoO3 core-shell nanostructures by varying the surface potential in the reaction medium. The layered MoO3 was adsorbed on the surface of ZnO particles by electrostatic interaction and simultaneously anchored onto graphene nanosheets (GNS) by chemical bonds. The sunlight induced photocatalytic phenomena of the GNS-ZnO-MoO3 hybrid nanoassemblies have been examined by photodegradation of harmful organic pollutant. As a result, the as-synthesized GNS-ZnO-MoO3 hybrid nanoassemblies showed a better photocatalytic performance towards acridine orange dye (AO). The efficient photocatalytic performance was due to the interfacial charge transfer processes between GNS and ZnO-MoO3 that improves the electronic conductivity of the hybrid nanostructure. Moreover, the chemical bonds formed between the MoO3 shells and GNS efficiently hinder the recombination loss of photogenerated charges. This synthesis strategy was very simple, effective and can be extended to assembling other ternary nanostructures with enhanced photodegradation performance.

scholarly journals Interfacial charge-transfer Mott state in iridate–nickelate superlattices

2019 ◽  
Vol 116 (40) ◽  
pp. 19863-19868 ◽  
Author(s):  
Xiaoran Liu ◽  
Michele Kotiuga ◽  
Heung-Sik Kim ◽  
Alpha T. N’Diaye ◽  
Yongseong Choi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
First Principles ◽  
Degrees Of Freedom ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
First Principles Calculations ◽  
Experimental Characterization ◽  
Large Crystal ◽  
Interfacial Charge Transfer ◽  
Interfacial Charge

We investigate SrIrO3/LaNiO3 superlattices in which we observe a full electron transfer at the interface from Ir to Ni, triggering a massive structural and electronic reconstruction. Through experimental characterization and first-principles calculations, we determine that a large crystal field splitting from the distorted interfacial IrO6 octahedra surprisingly dominates over the spin–orbit coupling and together with the Hund’s coupling results in the high-spin (S = 1) configurations on both the Ir and Ni sites. This demonstrates the power of interfacial charge transfer in coupling lattice, charge, orbital, and spin degrees of freedom, opening fresh avenues of investigation of quantum states in oxide superlattices.

Tunable 3D hierarchical graphene–BiOI nanoarchitectures: their in situ preparation, and highly improved photocatalytic performance and photoelectrochemical properties under visible light irradiation

RSC Advances ◽  
2014 ◽  
Vol 4 (90) ◽  
pp. 49386-49394 ◽  
Author(s):  
Hongwei Huang ◽  
Kun Liu ◽  
Yinglei Zhang ◽  
Kai Chen ◽  
Yihe Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Photoelectrochemical Properties ◽  
Interfacial Charge Transfer ◽  
In Situ Preparation ◽  
Interfacial Charge

Tunable 3D hierarchical graphene–BiOI nanoarchitectures result in efficient interfacial charge transfer and improved photochemical performance.

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