Tungsten oxide by non-hydrolytic sol–gel: effect of molecular precursor on morphology, phase and photocatalytic performance

2016 ◽  
Vol 40 (1) ◽  
pp. 217-222 ◽  
Author(s):  
Emma Oakton ◽  
Georges Siddiqi ◽  
Alexey Fedorov ◽  
Christophe Copéret

The synthesis, characterisation and photocatalytic water splitting activity of blue tungsten oxide materials prepared from W(vi) and W(iv) precursors is reported.

2021 ◽  
Vol 60 ◽  
pp. 351-359
Author(s):  
Qiuling Tao ◽  
Tian Lu ◽  
Ye Sheng ◽  
Long Li ◽  
Wencong Lu ◽  
...  

2017 ◽  
Vol 41 (3) ◽  
pp. 1094-1102 ◽  
Author(s):  
Lili Wen ◽  
Kaining Ding ◽  
Shuping Huang ◽  
Yongfan Zhang ◽  
Yi Li ◽  
...  

F-Doping can be a promising strategy to modify the photocatalytic performance of mBiVO4 for hydrogen and oxygen evolution from water.


2019 ◽  
Vol 7 (7) ◽  
pp. 2993-2999 ◽  
Author(s):  
Jian-Feng Huang ◽  
Jun-Min Liu ◽  
Li-Min Xiao ◽  
Yu-Hui Zhong ◽  
Liang Liu ◽  
...  

A highly robust hybrid material Calix-3-TiO2 based on calixarene dye and TiO2 is prepared by a facile sol–gel method for the first time. When Pt nanoparticles are introduced onto the hybrid, the catalysts display efficient and persistent photocatalytic water splitting activities.


2020 ◽  
Vol 8 (39) ◽  
pp. 20493-20502
Author(s):  
Stefano Falletta ◽  
Patrick Gono ◽  
Zhendong Guo ◽  
Stavroula Kampouri ◽  
Kyriakos C. Stylianou ◽  
...  

Theoretical methodologies for the band alignment at MOF/co-catalyst/water systems revealing the electronic and atomistic mechanisms underlying their photocatalytic performance.


Author(s):  
Syed Saad Ahsan ◽  
David Erickson

In this work, we present a novel microfluidic photocatalytic water-splitting reactor. Optofluidics offers advantages over conventional reactors in terms of improved photon transfer efficiency and mass transfer efficiency and are therefore the ideal platform for photocatalytic reactions. Our device is a planar optofluidic device which we used to study the kinetics of Platinum-Impregnated Titanium Oxide as the oxygen and hydrogen producing photocatalyst redox mediated by Iodide/Iodate species. We deposit our catalysts via a sol-gel method while the platinum co-catalyst is added by wet impregnation via reduction in Sodium Borohydride. The reactions are performed under a 100W Hg lamp and reaction rates are inferred by measuring the depletion of the two Iodine species via UV-vis absorption spectrophotometry. Our results indicate that reaction rates and efficiencies can be enhanced by using an optofluidic platform as opposed to the conventional slurry reactor used in previous experiments for this class of reaction. We believe that the micro-optofluidic platform of our device offers the benefit of measuring the kinetic properties of these class of reactions quickly and cheaply for the goals of further optimization.


RSC Advances ◽  
2021 ◽  
Vol 11 (52) ◽  
pp. 32996-33003
Author(s):  
S. S. Ullah ◽  
M. Farooq ◽  
H. U. Din ◽  
Q. Alam ◽  
M. Idrees ◽  
...  

The two dimensional GaN–SiS van der Waals heterostructure is a promising candidate for optoelectronic and photocatalytic water splitting.


2019 ◽  
Vol 1 (1) ◽  
pp. 154-161 ◽  
Author(s):  
Xu Zhang ◽  
An Chen ◽  
Zihe Zhang ◽  
Menggai Jiao ◽  
Zhen Zhou

We screened 2D monolayers to explore the materials which could be used to fabricate type-II heterojunctions with C2N monolayers to further improve their photocatalytic performance.


Author(s):  
Qixiao Gai ◽  
Shoutian Ren ◽  
Xiaochun Zheng ◽  
Wenjun Liu ◽  
Quanli Dong

Transition metal co-catalysts exhibit considerable potential in photocatalytic water splitting process, but their limited activity and poor stability inhibit the extensive application, and therefore effective schemes are required to further...


2014 ◽  
Vol 16 (47) ◽  
pp. 25928-25934 ◽  
Author(s):  
Yee-Fun Lim ◽  
Chin Sheng Chua ◽  
Coryl Jing Jun Lee ◽  
Dongzhi Chi

Cu2O and CuO thin films deposited by a sol–gel spin-coating process show promise for photocatalytic water splitting.


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