Control of Selectivity in Heterogeneous Photocatalysis by Tuning TiO2 Morphology for Water Treatment Applications

Electrochemical advanced oxidation process and heterogeneous photocatalysis have received great attention in the last few years as alternative/complementary water treatment technologies.

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Photocatalysis (TiO2/Solar) in Water and Wastewater Treatment

Advances in Environmental Engineering and Green Technologies - Advanced Oxidation Processes (AOPs) in Water and Wastewater Treatment ◽

10.4018/978-1-5225-5766-1.ch008 ◽

2019 ◽

pp. 171-199

Author(s):

Nurul Aiin Ab Aziz ◽

Puganeshwary Palaniandy

Keyword(s):

Wastewater Treatment ◽

Water Treatment ◽

Organic Contaminants ◽

Advanced Oxidation ◽

Heterogeneous Photocatalysis ◽

Complete Oxidation ◽

Water And Wastewater Treatment ◽

Oxidation Processes ◽

Process Characteristics ◽

Water And Wastewater

Advanced oxidation processes (AOPs) have gained growing importance for the removal of organic pollutants from water. Heterogeneous photocatalysis has been rapidly expanding for water treatment. This approach has economic and sustainability advantages compared with other processes. The main advantage of this process is its capability to gain complete oxidation or mineralization of organic contaminants at conditions of near ambient temperature and pressure. This chapter aims to review the mechanism involved in this process, characteristics of semiconductor photocatalyst, difference between suspended and immobilized photocatalyst system, comparison between the use of natural sunlight and commercial lamp, also the reactor involved. Potential advantages and limitations, as well as the application of photocatalysis in water and wastewater are also discussed.

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Heterogeneous Photocatalysis: Use in Water Treatment and Involvement in Atmospheric Chemistry

Aquatic and Surface Photochemistry ◽

10.1201/9781351069847-26 ◽

2018 ◽

pp. 369-386 ◽

Cited By ~ 1

Author(s):

Chantal Guillard ◽

Laurence Amalric ◽

Jean-Christophe D’Oliveira ◽

Hervé Delprat ◽

Can Hoang-Van ◽

...

Keyword(s):

Water Treatment ◽

Atmospheric Chemistry ◽

Heterogeneous Photocatalysis

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ChemInform Abstract: Heterogeneous Photocatalysis: An Emerging Technology for Water Treatment.

ChemInform ◽

10.1002/chin.199339308 ◽

2010 ◽

Vol 24 (39) ◽

pp. no-no

Author(s):

J.-M. HERRMANN ◽

C. GUILLARD ◽

P. PICHAT

Keyword(s):

Water Treatment ◽

Emerging Technology ◽

Heterogeneous Photocatalysis

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Factors Capable of Modifying the Response of Pseudomonas aeruginosa to the Inactivation Induced by Heterogeneous Photocatalysis

International Journal of Chemical Reactor Engineering ◽

10.1515/ijcre-2012-0037 ◽

2013 ◽

Vol 11 (2) ◽

pp. 773-779

Author(s):

Paula Z. Araujo ◽

Oscar J. Oppezzo ◽

Jorge A. Ibáñez ◽

Miguel Blesa ◽

Ramón A. Pizarro

Keyword(s):

Pseudomonas Aeruginosa ◽

Water Treatment ◽

Treatment Process ◽

Bacterial Resistance ◽

Lethal Effect ◽

Heterogeneous Photocatalysis ◽

Nutrient Deprivation ◽

Water Treatment Process ◽

Uva Irradiation ◽

Radio Sensitivity

Abstract The heterogeneous photocatalysis (HP) procedure has been demonstrated to be an interesting method for disinfecting water. It is effective for inactivating Pseudomonas aeruginosa, but its effectiveness may be reduced due to the action of several factors which are able to affect bacterial radio-sensitivity. The results reported here show the influence of nutritional stress and pre-exposure to sub-lethal UVA doses on the efficiency of the inactivation of P. aeruginosa by HP. Both previous exposures to low UVA fluencies and nutrient deprivation induce bacterial resistance to this process, in concordance with previous observations about the lethal effect of direct UVA irradiation. Starvation plus pre-irradiation did not have synergistic or antagonist effects. Kinetic parameters are presented for all three cases. These factors should be taken into account in the design of a water treatment process.

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Structural features and morphology of titanium dioxide–bismuth vanadate heterojunctions

CrystEngComm ◽

10.1039/d1ce00982f ◽

2021 ◽

Author(s):

K. T. Drisya ◽

M. Edely ◽

M. Solís-López ◽

A. Jantrania ◽

S. Auguste ◽

...

Keyword(s):

Titanium Dioxide ◽

Water Treatment ◽

Water Splitting ◽

Structural Features ◽

Heterogeneous Photocatalysis ◽

Bismuth Vanadate ◽

Pollutant Degradation ◽

Semiconducting Oxides

Titanium dioxide TiO2 (TO) and bismuth vanadate BiVO4 (BVO) are promising photoactive semiconducting oxides for heterogeneous photocatalysis devoted to water treatment, pollutant degradation and water splitting processes.

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