Hierarchical SrTiO3/TiO2 nanofibers heterostructures with high efficiency in photocatalytic H2 generation

2012 ◽  
Vol 125 ◽  
pp. 367-374 ◽  
Author(s):  
Hongwei Bai ◽  
Jermyn Juay ◽  
Zhaoyang Liu ◽  
Xiaoxiao Song ◽  
Siew Siang Lee ◽  
...  
Keyword(s):  
High Efficiency ◽  
Tio2 Nanofibers ◽  
H2 Generation ◽  
Photocatalytic H2 Generation

One-step calcination synthesis of WC-Mo2C heterojunction nanoparticles as novel H2-production cocatalysts for enhanced photocatalytic activity of TiO2

2021 ◽  
Author(s):  
Lulu Gao ◽  
Jinfeng Liu ◽  
Haoyu Long ◽  
Ping Wang ◽  
Huogen Yu
Keyword(s):  
Thermal Stability ◽  
Photocatalytic Activity ◽  
Molybdenum Carbide ◽  
High Efficiency ◽  
H2 Production ◽  
High Thermal Stability ◽  
Adsorption Potential ◽  
H2 Generation ◽  
One Step ◽  
Photocatalytic H2 Generation

Hexagonal molybdenum carbide (Mo2C) as a high-efficiency non-noble cocatalyst has been widely applied in the photocatalytic H2-generation area due to its platinum-like H+-adsorption potential, high thermal stability, and excellent electrochemistry...

scholarly journals Photocatalytic H2 generation over In2TiO5, Ni substituted In2TiO5 and NiTiO3 – a combined theoretical and experimental study

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61218-61229 ◽  
Author(s):  
A. M. Banerjee ◽  
M. R. Pai ◽  
A. Arya ◽  
S. R. Bharadwaj
Keyword(s):  
Crystal Structure ◽  
Experimental Study ◽  
Optical Absorption ◽  
Electronic Properties ◽  
Absorption Properties ◽  
H2 Generation ◽  
Ni Substitution ◽  
Consequent Effect ◽  
Photocatalytic H2 Generation

Role of Ni substitution in modifying the crystal structure, optical absorption properties and electronic properties of indium titanate, In2(1−x)Ni2xTiO5−δ (0.0 ≤ 2x ≤ 0.4) and its consequent effect on the photocatalytic properties for H2 generation.

Photocatalytic H2 generation from spinels ZnFe2O4, ZnFeGaO4 and ZnGa2O4

2013 ◽  
Vol 199 ◽  
pp. 22-26 ◽  
Author(s):  
Xiaoxiang Xu ◽  
Abul K. Azad ◽  
John T.S. Irvine
Keyword(s):  
H2 Generation ◽  
Photocatalytic H2 Generation

Crystallinity and phase controlling of g-C3N4 /CdS hetrostructures towards high efficient photocatalytic H2 generation

2019 ◽  
Vol 44 (57) ◽  
pp. 30151-30159 ◽  
Author(s):  
Yaya Wang ◽  
Xiao Zhang ◽  
Yingjie Liu ◽  
Yubin Zhao ◽  
Cong Xie ◽  
...  
Keyword(s):  
H2 Generation ◽  
High Efficient ◽  
Photocatalytic H2 Generation

scholarly journals Enhanced Photocatalytic Reduction of Cr(VI) by Combined Magnetic TiO2-Based NFs and Ammonium Oxalate Hole Scavengers

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 72 ◽  
Author(s):  
Yin-Hsuan Chang ◽  
Ming-Chung Wu
Keyword(s):  
Organic Contaminants ◽  
High Efficiency ◽  
Ammonium Oxalate ◽  
Reaction Rate Constant ◽  
Electron Hole ◽  
Tio2 Nanofibers ◽  
Tio2 Photocatalysts ◽  
Survival And Development ◽  
Hole Scavenger ◽  
Separation Behavior

Heavy metal pollution of wastewater with coexisting organic contaminants has become a serious threat to human survival and development. In particular, hexavalent chromium, which is released into industrial wastewater, is both toxic and carcinogenic. TiO2 photocatalysts have attracted much attention due to their potential photodegradation and photoreduction abilities. Though TiO2 demonstrates high photocatalytic performance, it is a difficult material to recycle after the photocatalytic reaction. Considering the secondary pollution caused by the photocatalysts, in this study we prepared Ag/Fe3O4/TiO2 nanofibers (NFs) that could be magnetically separated using hydrothermal synthesis, which was considered a benign and effective resolution. For the photocatalytic test, the removal of Cr(VI) was carried out by Ag/Fe3O4/TiO2 nanofibers combined with ammonium oxalate (AO). AO acted as a hole scavenger to enhance the electron-hole separation ability, thereby dramatically enhancing the photoreduction efficiency of Cr(VI). The reaction rate constant for Ag/Fe3O4/TiO2 NFs in the binary system reached 0.260 min−1, 6.95 times of that of Ag/Fe3O4/TiO2 NFs in a single system (0.038 min−1). The optimized Ag/Fe3O4/TiO2 NFs exhibited high efficiency and maintained their photoreduction efficiency at 90% with a recyclability of 87% after five cycles. Hence, taking into account the high magnetic separation behavior, Ag/Fe3O4/TiO2 NFs with a high recycling capability are a potential photocatalyst for wastewater treatment.

scholarly journals The photogenerated charge characteristics in Ni@NiO/CdS hybrids for increased photocatalytic H2 generation

RSC Advances ◽  
2019 ◽  
Vol 9 (68) ◽  
pp. 39604-39610 ◽  
Author(s):  
Lijing Zhang ◽  
Xiufang Zhu ◽  
Yuanyuan Zhao ◽  
Pengyu Zhang ◽  
Jing Chen ◽  
...  
Keyword(s):  
H2 Generation ◽  
Photocatalytic H2 Generation

NiO reduces the H2 evolution overpotential, which is the main reason for the improvement in the photocatalytic H2 evolution activity of Ni/CdS.

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