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.

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.

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.

Constructing a tunable defect structure in TiO2 for photocatalytic nitrogen fixation

2020 ◽  
Vol 8 (1) ◽  
pp. 334-341 ◽  
Author(s):  
Guoqiang Zhang ◽  
Xun Yang ◽  
Chuanxin He ◽  
Peixin Zhang ◽  
Hongwei Mi
Keyword(s):  
Nitrogen Fixation ◽  
Adsorption Capacity ◽  
Charge Separation ◽  
Defect Structure ◽  
Separation Efficiency ◽  
Dissociative Adsorption ◽  
Nitrogen Fixing ◽  
Charge Separation Efficiency

This study provides new insights into constructing efficient nitrogen-fixing photocatalysts by optimizing the OV concentration to coordinate the charge separation efficiency and dissociative adsorption capacity of N2.

KCa2Nb3O10/ZnIn2S4 nanosheet heterojunctions with improved charge separation efficiency for efficient photocatalytic CO2 reduction

2021 ◽  
Vol 865 ◽  
pp. 158836
Author(s):  
Deli Jiang ◽  
Qianxiao Zhang ◽  
Donghai Chen ◽  
Baowei Wen ◽  
Qi Song ◽  
...  
Keyword(s):  
Charge Separation ◽  
Separation Efficiency ◽  
Co2 Reduction ◽  
Charge Separation Efficiency

Designed C3N4/CdS–CdWO4 core–shell heterostructure with excellent photocatalytic activity

2017 ◽  
Vol 41 (3) ◽  
pp. 1028-1036 ◽  
Author(s):  
Qizhao Wang ◽  
Yanbiao Shi ◽  
Yang Sun ◽  
Houde She ◽  
Jie Yu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electric Field ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
Excellent Photocatalytic Activity ◽  
Charge Separation Efficiency

Charge separation efficiency is improved by the enhanced built-in photogenerated electric field.

Constructing 2D/2D interfacial contact in ReS2/TiO2 via Ti-S bond for efficient charge transfer in photocatalytic hydrogen production

2021 ◽  
Author(s):  
Yanan Wang ◽  
Rongrong Shi ◽  
Kai Song ◽  
Chunyang Liu ◽  
Fang He
Keyword(s):  
Charge Transfer ◽  
Hydrogen Production ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Photocatalytic Hydrogen Production ◽  
Interfacial Contact ◽  
Efficient Charge ◽  
Transport Path ◽  
Charge Separation Efficiency

Exploring and adjusting the transport path of photo-generated carriers is vital to promote charge separation efficiency and charge transfer ability for photocatalytic hydrogen performance of novel semiconductor composites. Herein, this...

High Light Absorption and Charge Separation Efficiency at Low Applied Voltage from Sb-Doped SnO2/BiVO4 Core/Shell Nanorod-Array Photoanodes

Nano Letters ◽  
2016 ◽  
Vol 16 (6) ◽  
pp. 3463-3474 ◽  
Author(s):  
Lite Zhou ◽  
Chenqi Zhao ◽  
Binod Giri ◽  
Patrick Allen ◽  
Xiaowei Xu ◽  
...  
Keyword(s):  
Applied Voltage ◽  
Light Absorption ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Nanorod Array ◽  
High Light ◽  
Core Shell ◽  
Charge Separation Efficiency

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.

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