The novel two-dimensional photocatalyst SnN3 with enhanced visible-light absorption for overall water splitting

Nanoscale ◽  
2019 ◽  
Vol 11 (40) ◽  
pp. 18628-18639 ◽  
Author(s):  
Shengyao Wu ◽  
Yanqing Shen ◽  
Xu Gao ◽  
Yanyan Ma ◽  
Zhongxiang Zhou
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Absorption Capacity ◽  
The Novel ◽  
Two Dimensional ◽  
Visible Light Absorption ◽  
Overall Water Splitting

SnN3 monolayer can conduct overall photocatalytic splitting of water and has ultra-high visible light absorption capacity.

Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

Structural reconstruction and visible-light absorption versus internal electrostatic field in two-dimensional GaN-ZnO alloys

Nanoscale ◽  
2021 ◽  
Author(s):  
Hanpu Liang ◽  
Yifeng Duan
Keyword(s):  
Visible Light ◽  
Electrostatic Field ◽  
Light Absorption ◽  
Red Shift ◽  
Two Dimensional ◽  
Visible Light Absorption ◽  
Visible Light Range ◽  
Optoelectronic Applications

GaN-ZnO alloys are more promising semiconductors than their counterparts for optoelectronic applications due to the abrupt red shift in the visible-light range. Unfortunately, the strong internal electrostatic field (IEF) seriously...

Direct Z-scheme MgIn2S4/TiO2 heterojunction for enhanced photocathodic protection of metals under visible light

2022 ◽  
Author(s):  
Hong Li ◽  
Xingqiang Cui ◽  
Weizhe Song ◽  
Zhanyuan Yang ◽  
Yanhui Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Separation Efficiency ◽  
Photogenerated Electron ◽  
Precursor Solution ◽  
Absorption Capacity ◽  
Photoelectric Conversion ◽  
Visible Light Absorption ◽  
Photocathodic Protection ◽  
Protection Of Metals

Abstract To improve the photocathodic protection performance of traditional TiO2 photoanodes for metals, constructing a Z-scheme heterojunction is one of the most promising and creative strategies. Herein, we fabricated a novel Z-scheme MgIn2S4 nanosheets/TiO2 nanotube nanocomposite through anodization and hydrothermal method. The optimized Z-scheme MgIn2S4/TiO2 nanocomposites exhibited stronger visible light absorption, higher separation efficiency of photoelectrons and photocathodic protection performances in comparison to pure TiO2. The theoretical analysis and experimental results show that the Z-scheme heterojunction and oxygen vacancies jointly improved the separation efficiency of photogenerated electron-hole pairs and visible light absorption capacity, thereby improving the photoelectric conversion performance of the MgIn2S4/TiO2 nanocomposites. Furthermore, the influence of the precursor solution concentration on the photocathodic protection performances of the composites was investigated. As a result, when the concentration of magnesium source in the precursor solution was 0.06 mmol, the prepared MgIn2S4/TiO2-0.06 displayed the best photocathodic protection performance. In addition, the hydroxyl radicals (•OH) generated in the electron spin resonance (ESR) experiment verified the Z-scheme heterojunction mechanism of the MgIn2S4/TiO2 composite, and also demonstrated the excellent redox performance of the composite. This work provides valuable reference for the construction of high-performance Z-scheme heterojunctions for photocathode protection of metals.

scholarly journals Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties

RSC Advances ◽  
2019 ◽  
Vol 9 (30) ◽  
pp. 17165-17178 ◽  
Author(s):  
Smilja Marković ◽  
Ivana Stojković Simatović ◽  
Sanita Ahmetović ◽  
Ljiljana Veselinović ◽  
Stevan Stojadinović ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Microwave Synthesis ◽  
Light Absorption ◽  
Catalytic Properties ◽  
Absorption Capacity ◽  
Visible Light Absorption ◽  
Zno Particles ◽  
Electro Catalytic Activity ◽  
Surfactant Assisted

Employing CTAB in the microwave synthesis of ZnO particles enables improvement of their visible light absorption capacity and photo(electro)catalytic activity.

Zr doped mesoporous LaTaON2 for efficient photocatalytic water splitting

2019 ◽  
Vol 7 (10) ◽  
pp. 5702-5711 ◽  
Author(s):  
Yawei Wang ◽  
Shu Jin ◽  
Guoxiang Pan ◽  
Zuxin Li ◽  
Long Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Photocatalytic Water Splitting ◽  
Photocatalytic Activities

Zr doping maintains the visible light absorption of LaTaON2 and contributes to enhanced photocatalytic activities for water splitting.

A two-dimensional h-BN/C2N heterostructure as a promising metal-free photocatalyst for overall water-splitting

2020 ◽  
Vol 22 (42) ◽  
pp. 24446-24454 ◽  
Author(s):  
Guangzhao Wang ◽  
Zongfeng Li ◽  
Weikang Wu ◽  
Hao Guo ◽  
Cong Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Type Ii ◽  
Two Dimensional ◽  
Light Water ◽  
Metal Free ◽  
Overall Water Splitting

A metal-free type-II h-BN/C2N heterostructure is shown as a potential visible light water-splitting photocatalyst.

Halogen modified two-dimensional covalent triazine frameworks as visible-light driven photocatalysts for overall water splitting

2020 ◽  
Vol 63 (8) ◽  
pp. 1134-1141
Author(s):  
Cen-Feng Fu ◽  
Chuanyu Zhao ◽  
Qijing Zheng ◽  
Xingxing Li ◽  
Jin Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Two Dimensional ◽  
Overall Water Splitting ◽  
Visible Light Driven

Designing transition metal and nitrogen-codoped SrTiO3(001) perovskite surfaces as efficient photocatalysts for water splitting

2017 ◽  
Vol 1 (9) ◽  
pp. 1968-1980 ◽  
Author(s):  
Yang Yang ◽  
Weijie Zheng ◽  
Daojian Cheng ◽  
Dapeng Cao
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Charge Mobility ◽  
High Charge

Development of an efficient photocatalyst with both strong visible light absorption and high charge mobility is highly desirable but still remains a great challenge.

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