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The global demand for energy is steadily increasing in the past decades, leading to a rise of the uses of conventional energy sources which are causing serious environmental problems such as the greenhouse effect and pollution of the water and air supplies. Therefore, numerous alternatives to minimize the impact of environmental pollution have been tracking down and developed. In the quest for sustainable growth in all fields of human activity, the water and air purification by efficient catalysts which can be activated by natural sunlight is now a primary goal of the worldwide research activity. Employing laser-based methods such as laser pyrolysis (LP) or pulsed laser deposition (PLD) to obtain new or modified photocatalysts can contribute to these efforts, due to the fact that the native advantages of these techniques allow the use of several efficient strategies (sensitization, structural strain engineering, metal/non-metal doping) to enhance photocatalytic activity of different materials. In this chapter, the laser processing techniques advantages are presented through the functional property’s enhancement of different photoactive materials such as complex stoichiometry inorganic perovskites (BiFeO3-based materials) or binary oxides (TiO2, WO3, ZnO). The tuning process of the photocatalysts active in visible light for complete degradation of the persistent organic pollutant or the effect of the structural strain on the photoelectrochemical water splitting performance is detailed for both laser pyrolysis (LP) or pulsed laser deposition (PLD) produced oxide nanomaterials. |
