Combination of efficient charge separation with the assistance of novel dual Z-scheme system: self-assembly photocatalyst Ag@AgI/BiOI modified oxygen-doped carbon nitride nanosheet with enhanced photocatalytic performance

2018 ◽  
Vol 8 (4) ◽  
pp. 1161-1175 ◽  
Author(s):  
Chao Liang ◽  
Cheng-Gang Niu ◽  
Hai Guo ◽  
Da-Wei Huang ◽  
Xiao-Ju Wen ◽  
...  
Keyword(s):  
Self Assembly ◽  
Charge Separation ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
The Self ◽  
High Charge ◽  
Efficient Charge ◽  
Charge Separation Efficiency

The self-assembly dual Z-scheme photocatalyst Ag@AgI/BiOI/g-C3N4 was successfully fabricated with high charge separation efficiency.

scholarly journals MXene-Ti3C2 assisted one-step synthesis of carbon-supported TiO2/Bi4NbO8Cl heterostructures for enhanced photocatalytic water decontamination

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 2077-2088 ◽  
Author(s):  
Daixun Jiang ◽  
Xun Sun ◽  
Xilu Wu ◽  
Shuai Zhang ◽  
Xiaofei Qu ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Salt Flux ◽  
The Novel ◽  
Water Contaminants ◽  
Photocatalytic Removal ◽  
One Step ◽  
Charge Separation Efficiency ◽  
Perovskite Type

AbstractThe strategy to improve the photocatalytic removal efficiencies towards organic pollutants is still a challenge for the novel Sillen–Aurivillius perovskite type Bi4NbO8Cl. Herein, we report carbon-supported TiO2/Bi4NbO8Cl (C-TiO2/Bi4NbO8Cl) heterostructures with enhanced charge separation efficiency, which were fabricated via molten-salt flux process. The carbon-supported TiO2 particles were derived from MXene Ti3C2 precursors, and attached on plate-like Bi4NbO8Cl, acting as electron-traps to achieve supressed recombination of photo-induced charges. The improved charge separation confers C-TiO2/Bi4NbO8Cl heterostructures superior photocatalytic performance with 53% higher than pristine Bi4NbO8Cl, towards rhodamine B removal with the help of photo-induced holes. Moreover, the C-TiO2/Bi4NbO8Cl heterostructures can be expanded to deal with other water contaminants, such as methyl orange, ciprofloxacin and 2,4-dichlorophenol with 44, 25 and 13% promotion, respectively, and thus the study offers a series of efficient photocatalysts for water purification.

Spatially separated cocatalysts for efficient charge separation: a hollow Pt/CdS/N–ZnO/CoOx graphene microtubule with high stability for photocatalytic reactions and sustainable recycling

2019 ◽  
Vol 9 (24) ◽  
pp. 6899-6908 ◽  
Author(s):  
Yong Liang ◽  
Yuexing Chen ◽  
Maojun Zhao ◽  
Li Lin ◽  
Rongtao Duan ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Charge Separation ◽  
High Stability ◽  
Photocatalytic Oxidation ◽  
Separation Efficiency ◽  
Capillary Action ◽  
Efficient Charge ◽  
Charge Separation Efficiency ◽  
Photocatalytic Reactions

The spatially separated Pt/CdS/N–ZnO/CoOx graphene microtubule (PCNZCo-GM) with double cocatalysts is prepared by a capillary action assisted hydrothermal method for enhancing charge separation efficiency and photocatalytic oxidation ability.

Ultrathin functional films of titanium(IV) oxide

2012 ◽  
Vol 66 (5) ◽  
Author(s):  
Petr Kluson ◽  
Stepan Kment ◽  
Magdalena Morozova ◽  
Pavel Dytrych ◽  
Stanislav Hejda ◽  
...  
Keyword(s):  
Self Assembly ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Physical Methods ◽  
Structure Morphology ◽  
Charge Separation Efficiency ◽  
Induced Charge ◽  
And Function ◽  
Preparation Techniques ◽  
Intense Research

AbstractChemistry and physics of thin semiconducting layers of various types are subjects of intense research. Especially when nanotechnology methods such as self-assembly are involved, amazing structural and/or functional properties may appear. Also modern physical methods using variously organized plasma arrangements are able to produce uniform structures with distinctive functionality. In this review, based virtually on our own work, discussions on the preparation, structure, morphology, and function of titanium(IV) oxide nanoscopic thin films are presented. It was shown that structurally and functionally similar titanium(IV) oxide films can be prepared via completely different preparation techniques. Function tests were arranged as “primary”, covering the assessment of the light induced charge separation efficiency, and “secondary”, based on photocatalytic surface oxidations.

scholarly journals Bottom-Up Enhancement of g-C3N4Photocatalytic H2Evolution Utilising Disordering Intermolecular Interactions of Precursor

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Xue Lu Wang ◽  
Wen Qi Fang ◽  
Yu Hang Li ◽  
Pengfei Liu ◽  
Haimin Zhang ◽  
...  
Keyword(s):  
Charge Separation ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Weak Interactions ◽  
Bottom Up ◽  
Optical Window ◽  
Design And Optimization ◽  
Final Sample ◽  
Potential Applications ◽  
Charge Separation Efficiency

Disordered intermolecular interaction carbon nitride precursor prepared by water-assisted grinding of dicyandiamide was used for synthesis of g-C3N4. The final sample possesses much looser structure and provides a broadening optical window for effective light harvesting and charge separation efficiency, which exhibits significantly improved H2evolution by photocatalytic water splitting. The bottom-up mechanochemistry method opens new vistas towards the potential applications of weak interactions in the photocatalysis field and may also stimulate novel ideas completely different from traditional ones for the design and optimization of photocatalysts.

Fabrication of TiO2 nanosheets via Ti3+ doping and Ag3PO4 QD sensitization for highly efficient visible-light photocatalysis

RSC Advances ◽  
2016 ◽  
Vol 6 (68) ◽  
pp. 63984-63990 ◽  
Author(s):  
Lu Ma ◽  
Hong Han ◽  
Lun Pan ◽  
Muhammad Tahir ◽  
Li Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
Separation Efficiency ◽  
High Photocatalytic Activity ◽  
Visible Light Photocatalysis ◽  
High Charge ◽  
Highly Efficient ◽  
Tio2 Nanosheets ◽  
Charge Separation Efficiency

Ag3PO4 QDs sensitized and Ti3+-doped TiO2 nanosheets were fabricated, and exhibit high charge-separation efficiency and high photocatalytic activity.

Carbon quantum dot sensitized integrated Fe2O3@g-C3N4 core–shell nanoarray photoanode towards highly efficient water oxidation

2018 ◽  
Vol 6 (21) ◽  
pp. 9839-9845 ◽  
Author(s):  
Sha-Sha Yi ◽  
Jun-Min Yan ◽  
Qing Jiang
Keyword(s):  
Quantum Dot ◽  
Water Oxidation ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Carbon Quantum Dot ◽  
Efficient Charge ◽  
Oxidation Performance ◽  
Charge Separation Efficiency

The carbon quantum dot (CQD) sensitized integrated Ti:Fe2O3@g-C3N4 core–shell nanoarrays demonstrate superior PEC water oxidation performance which can be ascribed to efficient charge separation efficiency derived from the well-confined heterojunction structure together with the high catalytic activity of the CQDs for H2O2 decomposition.

Hierarchical Z-scheme Fe2O3@ZnIn2S4 core–shell heterostructures with enhanced adsorption capacity enabling significantly improved photocatalytic CO2 reduction

CrystEngComm ◽  
2020 ◽  
Vol 22 (47) ◽  
pp. 8221-8227
Author(s):  
Zihan Zhao ◽  
Chuanxin Shi ◽  
Qi Shen ◽  
Wenjuan Li ◽  
Dandan Men ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Co2 Reduction ◽  
Core Shell ◽  
Adsorption Ability ◽  
Molecule Adsorption ◽  
Efficient Charge ◽  
Charge Separation Efficiency ◽  
Enhanced Adsorption

The challenge of sunlight-driven CO2 reduction is to achieve efficient photocatalysts with exceptional molecule adsorption ability and efficient charge-separation efficiency.

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