Contributions of Abundant Hydroxyl Groups to Extraordinarily High Photocatalytic Activity of Amorphous Titania for CO2 Reduction

2020 ◽  
Vol 124 (20) ◽  
pp. 10981-10992 ◽  
Author(s):  
Aparna K. Kharade ◽  
Sue-min Chang
Keyword(s):  
Photocatalytic Activity ◽  
Co2 Reduction ◽  
High Photocatalytic Activity ◽  
Hydroxyl Groups ◽  
Amorphous Titania

Controllable synthesis of phosphate-modified BiPO4 nanorods with high photocatalytic activity: surface hydroxyl groups concentrations effects

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 99712-99721 ◽  
Author(s):  
Yan Li ◽  
Yawen Wang ◽  
Yu Huang ◽  
Junji Cao ◽  
Wingkei Ho ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Modification ◽  
Photocatalytic Performance ◽  
High Photocatalytic Activity ◽  
Hydroxyl Groups ◽  
Controllable Synthesis ◽  
Surface Hydroxyl ◽  
Methylene Orange ◽  
Surface Hydroxyl Groups

Surface modification by phosphate efficiently improves the photocatalytic performance of BiPO4 for the degradation of methylene orange (MO), by enhancing the concentration of surface hydroxyl groups and improving its hydrophilicity.

Highly-active direct Z-scheme Si/TiO2 photocatalyst for boosted CO2 reduction into value-added methanol

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 56961-56969 ◽  
Author(s):  
Yousong Liu ◽  
Guangbin Ji ◽  
Mohammed Abdulkader Dastageer ◽  
Lei Zhu ◽  
Junyi Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Reaction ◽  
Co2 Reduction ◽  
Value Added ◽  
High Photocatalytic Activity ◽  
Tio2 Photocatalyst ◽  
Highly Active

Si/TiO2 heterojunction photocatalyst was synthesized via a facile hydrothermal reaction and exhibits high photocatalytic activity towards conversion of CO2 to methanol.

Cubic anatase TiO2 nanocrystals with enhanced photocatalytic CO2 reduction activity

2015 ◽  
Vol 51 (37) ◽  
pp. 7950-7953 ◽  
Author(s):  
Quanlong Xu ◽  
Jiaguo Yu ◽  
Jun Zhang ◽  
Jinfeng Zhang ◽  
Gang Liu
Keyword(s):  
Photocatalytic Activity ◽  
Co2 Reduction ◽  
High Photocatalytic Activity ◽  
Anatase Tio2 ◽  
Tio2 Nanocrystals ◽  
Reduction Activity

Anatase TiO2 nanocubes with exposed {100} and {001} facets show especially high photocatalytic activity toward CO2 reduction to methane and methanol.

scholarly journals DFT Study on Regulating the Electronic Structure and CO2 Reduction Reaction in BiOBr/Sulphur-Doped G-C3N4 S-Scheme Heterojunctions

2021 ◽  
Vol 3 ◽  
Author(s):  
Xingang Fei ◽  
Liuyang Zhang ◽  
Jiaguo Yu ◽  
Bicheng Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Electric Field ◽  
Density Functional ◽  
Co2 Reduction ◽  
Photogenerated Electron ◽  
Reduction Reaction ◽  
High Photocatalytic Activity ◽  
Reduction Activity ◽  
Element Doping ◽  
Co2 Reduction Reaction

Photocatalytic CO2 reduction is a promising method to mitigate the greenhouse effect and energy shortage problem. Development of effective photocatalysts is vital in achieving high photocatalytic activity. Herein, the S-scheme heterojunctions composed by BiOBr and g-C3N4 with or without S doping are thoroughly investigated for CO2 reduction by density functional theory (DFT) calculation. Work function and charge density difference demonstrate the existence of a built-in electric field in the system, which contributes to the separation of photogenerated electron-hole pairs. Enhanced strength of a built-in electric field is revealed by analysis of Bader charge and electric field intensity. The results indicate that S doping can tailor the electronic structures and thus improve the photocatalytic activity. According to the change in absorption coefficient, system doping can also endow the heterojunction with increased visible light absorption. The in-depth investigation indicates that the superior CO2 reduction activity is ascribed to low rate-determining energy. And both of the heterojunctions are inclined to generate CH3OH rather than CH4. Furthermore, S doping can further reduce the energy from 1.23 to 0.44 eV, indicating S doping is predicted to be an efficient photocatalyst for reducing CO2 into CH3OH. Therefore, this paper provides a theoretical basis for designing appropriate catalysts through element doping and heterojunction construction.

A copper anchored on phosphorus g-C3N4 as a highly efficient photocatalyst for synthesis of N-arylpyridin-2-amines

2021 ◽  
Author(s):  
Jia-Qi Di ◽  
Mo Zhang ◽  
Yu-Xuan Chen ◽  
Jin-Xin Wang ◽  
Shan-Shan Geng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Recyclable Catalyst ◽  
Highly Efficient ◽  
Phosphorus Doped

A heterogeneous photocatalyst based on copper modified phosphorus doped g-C3N4 (Cu/P-CN) has been prepared and characterized. This recyclable catalyst exhibited high photocatalytic activity for the synthesis of N-arylpyridin-2-amine derivatives by...

Carbon Nitride Functionalized with Sb Resulting in High Photocatalytic Activity

2021 ◽  
Author(s):  
Luhong Zhang ◽  
Zhengyuan Jin ◽  
Jiyu Huang ◽  
Yiyue Zhang ◽  
Shaolong Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Carbon Nitride ◽  
High Photocatalytic Activity
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