Temperature-Driven Morphology Control on CdSe Nanofractals and Its Influence over the Augmented Rate of H2 Evolution: Charge Separation via the S-Scheme Mechanism with Incorporated Cu3P

2021 ◽  
Author(s):  
Parnapalle Ravi ◽  
Dinesh Kumar Kumaravel ◽  
Dinesh Subramanian ◽  
Deepakkumar Thoondyaiah ◽  
Vempuluru Navakoteswara Rao ◽  
...  
Keyword(s):  
Charge Separation ◽  
Morphology Control ◽  
H2 Evolution

CdSe Quantum Dots/White Graphene Hexagonal Porous Boron Nitride Sheet (h-PBNs) Heterostructure Photocatalyst for Solar Driven H2 Production

2021 ◽  
Author(s):  
Raheman Shakeelur ◽  
Rupali S. Mane ◽  
Higgins Wilson ◽  
Neetu Jha
Keyword(s):  
Active Site ◽  
Charge Separation ◽  
High Surface ◽  
High Surface Area ◽  
H2 Production ◽  
H2 Evolution ◽  
The World ◽  
2D Nanomaterials ◽  
White Graphene ◽  
Photogenerated Charge Separation

In the world of photocatalytic hydrogen (H2) evolution two-dimensional (2D) nanomaterials have attracted widespread attention owing to their high surface area, abundant active site, and excellent photogenerated charge separation properties....

Designed synthesis of unique ZnS@[email protected] hollow nanospheres for efficient visible-light-driven H2 evolution

CrystEngComm ◽  
2020 ◽  
Vol 22 (16) ◽  
pp. 2743-2755 ◽  
Author(s):  
Bowen Sun ◽  
Hui Wang ◽  
Jiakun Wu ◽  
Yanling Geng ◽  
Jixiang Xu ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Charge Separation ◽  
Active Sites ◽  
Light Harvesting ◽  
H2 Evolution ◽  
Hollow Nanospheres ◽  
Visible Light Driven ◽  
Designed Synthesis

Unique ZnS@[email protected] hollow nanospheres with abundant active sites and enhanced light-harvesting and charge separation demonstrate efficient H2 evolution from visible-light-driven water-splitting.

scholarly journals Prominent roles of Ni(OH)2 deposited on ZnIn2S4 microspheres in efficient charge separation and photocatalytic H2 evolution

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12442-12448
Author(s):  
Zhuang Guo ◽  
Huixia Hou ◽  
Jingyi Zhang ◽  
Pinglong Cai ◽  
Jun Lin
Keyword(s):  
Charge Separation ◽  
H2 Evolution ◽  
Photogenerated Electrons ◽  
Efficient Charge ◽  
Photocatalytic H2 Evolution

The capture of the photogenerated holes by the deposited Ni(OH)2 contributes to the efficient charge separation, allowing more photogenerated electrons to be left on ZnIn2S4 to reduce H+ to H2.

scholarly journals Pt Deposites on TiO2 for Photocatalytic H2 Evolution: Pt Is Not Only the Cocatalyst, but Also the Defect Repair Agent

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1047 ◽  
Author(s):  
Zhan Shu ◽  
Yandi Cai ◽  
Jiawei Ji ◽  
Changjin Tang ◽  
Shuohan Yu ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Charge Separation ◽  
H2 Production ◽  
H2 Evolution ◽  
X Ray ◽  
Production Activity ◽  
Defect Repair ◽  
New Perspective ◽  
Photocatalytic H2 Evolution

Pt, as a common cocatalyst, has been widely used in photocatalytic H2 evolution. However, the specific role of Pt in photocatalytic H2 evolution has not been thoroughly studied. In this paper, by employing three Pt sources with different charges (positive, negative and neutral), we systematically studied the charge effect of Pt sources on photocatalytic H2 evolution via TiO2 catalyst. According to the results of Raman, X-ray photoelectron spectroscopy (XPS), recycle experiments and photocurrent characterizations, it was found that TiO2 would produce electropositive defects during photocatalytic H2 evolution, inevitably leading to the decline of H2 production activity. Thanks to the electrostatic interaction, the electronegative Pt source not only promoted charge separation, but preferential deposited on electropositive defects, which acted as the defect repair agent, and thus resulted in the increased photocatalytic stability. This work may provide a new perspective for enhancing photocatalytic stability of hydrogen production.

scholarly journals Facile synthesis of highly active fluorinated ultrathin graphitic carbon nitride for photocatalytic H2 evolution using a novel NaF etching strategy

RSC Advances ◽  
2018 ◽  
Vol 8 (48) ◽  
pp. 27021-27026 ◽  
Author(s):  
Yanfei Liu ◽  
Junjie Wang ◽  
Chaochuang Yin ◽  
Huazhen Duan ◽  
Shifei Kang ◽  
...  
Keyword(s):  
Charge Separation ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
H2 Evolution ◽  
Facile Synthesis ◽  
Highly Active ◽  
Photocatalytic H2 Evolution

Although graphitic carbon nitride (GCN) has been intensively studied in photocatalytic research, its performance is still hindered by its inherently low photo-absorption and inefficient charge separation.

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