scholarly journals Photocatalysis of Titanium Dioxide for Water Disinfection: Challenges and Future Perspectives

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
M. J. Wu ◽  
T. Bak ◽  
P. J. O’Doherty ◽  
M. C. Moffitt ◽  
J. Nowotny ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Charge Transfer ◽  
Water Oxidation ◽  
Charge Separation ◽  
Water Disinfection ◽  
Future Perspectives ◽  
Oxide Semiconductors ◽  
Photocatalytic Application ◽  
Semiconducting Properties ◽  
Partial Water

The performance of metal oxides such as titanium dioxide (TiO2), in the conversion of solar energy into chemical energy, is determined by semiconducting properties. The conversion process is closely related to the light-induced reactivity between oxide semiconductors and water, which may lead to partial water oxidation and consequently water disinfection. Key performance-related properties are considered here, including light absorption, light-induced ionisation over the band gap, charge separation, charge transport, charge transfer, and the chemical reactions taking place at anodic and cathodic sites. Optimisation of these interconnected performance-related properties is discussed, along with the photocatalytic application in water disinfection.

scholarly journals Efficient photoelectrochemical water oxidation using a TiO2 nanosphere-decorated BiVO4 heterojunction photoanode

RSC Advances ◽  
2018 ◽  
Vol 8 (72) ◽  
pp. 41439-41444 ◽  
Author(s):  
Wenchao Jiang ◽  
Yi Jiang ◽  
Jing Tong ◽  
Qian Zhang ◽  
Siyuan Li ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Water Oxidation ◽  
Charge Separation ◽  
Photoelectrochemical Water Oxidation ◽  
Pec Water Splitting

Constructing heterojunctions by coupling dissimilar semiconductors is a promising approach to boost charge separation and charge transfer in photoelectrochemical (PEC) water splitting.

scholarly journals Hydrogen induced interface engineering in Fe2O3–TiO2 heterostructures for efficient charge separation for solar-driven water oxidation in photoelectrochemical cells

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4297-4307
Author(s):  
Aadesh P. Singh ◽  
Richard Baochang Wang ◽  
Camilla Tossi ◽  
Ilkka Tittonen ◽  
Björn Wickman ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Energy Band ◽  
Charge Separation ◽  
Energy Band Diagram ◽  
Photoelectrochemical Cells ◽  
Band Diagram ◽  
Interface Engineering ◽  
Anodic Potential ◽  
Efficient Charge

Approximate energy band diagram and charge transfer mechanism for the Fe2O3–TiO2 photoanode (left) and Fe2O3–H:TiO2 photoanode (right) with external applied anodic potential under illumination.

Boosted charge transfer in oxygen vacancy-rich K+ birnessite MnO2 for water oxidation and zinc-ion batteries

2021 ◽  
Vol 378 ◽  
pp. 138147
Author(s):  
MengXian Lin ◽  
Fuqiang Shao ◽  
Shuting Weng ◽  
Shanshan Xiong ◽  
Shuai Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Vacancy ◽  
Water Oxidation ◽  
Zinc Ion

scholarly journals Anion-enhanced excited state charge separation in a spiro-locked N-heterocycle-fused push-pull zinc porphyrin

2021 ◽  
Author(s):  
Mandeep K. Chahal ◽  
Anuradha Liyanage ◽  
Ajyal Z. Alsaleh ◽  
Paul A. Karr ◽  
Jonathan P. Hill ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Charge Separation ◽  
Charge Transfer Complex ◽  
Zinc Porphyrin ◽  
New Type ◽  
State Charge

A new type of push–pull charge transfer complex, viz., a spiro-locked N-heterocycle-fused zinc porphyrin, ZnP-SQ, is shown to undergo excited state charge separation, which is enhanced by axial F− binding to the Zn center.

Fast microwave-assisted preparation of nickel–copper–chromium-layered double hydroxide as an excellent electrocatalyst for water oxidation

2021 ◽  
Author(s):  
Kamellia Nejati ◽  
Leila Jafari Foruzin ◽  
Zolfaghar Rezvani
Keyword(s):  
Charge Transfer ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Bandgap Energy ◽  
Microwave Method ◽  
Optimal Amount ◽  
Microwave Assisted ◽  
Nickel Copper ◽  
Copper Chromium ◽  
Double Hydroxide

A well-designed NiCuCr-LDH was prepared using a simple microwave method. According to the OER results, doping optimal amount of Cu2+ into NiCr-LDH displayed superior OER activity, due to decreased bandgap energy and improved charge transfer.

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